Methods for Aluminium Recycling

The demand for aluminium products is growing steadily because of their positive contribution to modern living. Aluminium is the second most widely used metal whereas the aluminum can is the most recycled consumer product in the world. Aluminium finds extensive use in air, road and sea transport; food and medicine; packaging; construction; electronics and electrical power transmission. The excellent recyclability of aluminium, together with its high scrap value and low energy needs during recycling make aluminium highly desirable to one and all. The global aluminum demand is forecasted to soar to nearly 70 million tons by 2020 from around 37 million tons currently.

Recycling of Aluminium

The contribution of recycled metal to the global output of aluminium products has increased from 17 percent in 1960 to 34 percent today, and expected to rise to almost 40 percent by 2020. Global recycling rates are high, with approximately 90 per cent of the metal used for transport and construction applications recovered, and over 60 per cent of used beverage cans are collected.

Aluminium does not degrade during the recycling process, since its atomic structure is not altered during melting. Aluminium recycling is both economically and environmentally effective, as recycled aluminium requires only 5% of the energy used to make primary aluminium, and can have the same properties as the parent metal. Infact, aluminium can be recycled endlessly without loss of material properties.

During the course of multiple recycling, more and more alloying elements are introduced into the metal cycle. This effect is put to good use in the production of casting alloys, which generally need these elements to attain the desired alloy properties.The industry has a long tradition of collecting and recycling used aluminium products.

Over the years, USA and European countries have developed robust separate collection systems for aluminium packaging with a good degree of success. Recycling aluminium reduces the need for raw materials and reduces the use of valuable energy resources. Recycled aluminium is made into aircraft, automobiles, bicycles, boats, computers, cookware, gutters, siding, wire and cans.

Recycling of Aluminium Cans

Aluminum can is the most recycled consumer product in the world. Each year, the aluminum industry pays out more than US$800 million for empty aluminum cans. Recycling aluminium cans is a closed-loop process since used beverage cans that are recycled are primarily used to make beverage cans. Recycled aluminium cans are used again for the production of new cans or for the production of other valuable aluminium products such as engine blocks, building facades or bicycles. In Europe about 50% of all semi-fabricated aluminium used for the production of new beverage cans and other aluminium packaging products comes from recycled aluminium. The major steps in aluminium can recycling are as followe:

Step 1: Aluminium cans are collected from recycling centers, community drop-off sites, curbside pick-up spots etc.

Step 2: Compressed into highly dense briquettes or bales at scrap processing facilities and shipped to aluminum companies for melting.

Step 3: Condensed cans are shredded, crushed and stripped of their inside and outside dyes. The potato chip-sized pieces are loaded into melting furnaces, where the recycled metal is blended with brand new aluminum.

Step 4: Molten aluminum is converted into ingots which are fed into rolling mills that reduce the thickness to about 1/100 of an inch.

Step 5: This metal is then coiled and shipped to can manufacturers. The cans are then delivered to beverage companies for filling.

Step 6: The new cans, filled with your favorite beverages, are then returned to store shelves in as little as 60 days … and the recycling process begins again!

 

Recycling of Aluminium Packaging

Aluminium packaging fits every desired recycling and processing route. Aluminium packaging needs to be separated from other packing material when intended for material recycling. A growing number of sorting facilities are equipped with eddy current separators which offer a comprehensive means of sorting the aluminium fraction.

Multi-material packaging systems may consist of plastics, tinplate, beverage cartons and paper packaging, apart from aluminium packaging, e.g. beverage cartons. A variety of systems have been developed to extract aluminium from complex packaging systems, such as repulping, mechanical separation and pyrolysis. In pyrolysis, the non-metallic components are removed from the aluminium by evaporation. A newer technology is the thermal plasma process where the three components – aluminium, plastic and paper – are separated into distinct fractions.

Aluminium from Urban Wastes

Aluminium exposed to fires at dumps can be a serious environmental problem in the form of poisonous gases and mosquito breeding. Recycled aluminium can be utilized for almost all applications, and can preserve raw materials and reduce toxic emissions, apart from significant energy conservation.

Aluminium can also be extracted from the bottom ashes of municipal solid waste incinerators as aluminium nodules. In many European countries, municipal solid waste is entirely or partly incinerated; in this case the contained thin gauge aluminium foil is oxidized and delivers energy while thicker gauges can be extracted from the bottom ash.

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Education for Sustainable Development: Key Challenges

education-for-sustainable-developmentThe basic aim of 'Education for Sustainable Development' is to nurture an individual who is capable to solve environmental challenges facing the world and to promote the formation of a sustainable society. The first challenge is to have an ethos in schools that openly and enthusiastically supports the development of ESD (Education for Sustainable Development). This is partly down to the curriculum the school follows, but is mainly as a result of the interest and effort shown by senior management in promoting integration and whole school engagement; a critical element being teacher training. It is also down to the expectations that are put upon schools by education authorities when it comes to ESD.

With trained and motivated teachers, it is far easier to inspire and motivate students. Teachers can often use the environment as a vehicle for teaching certain concepts in their own specific subject. Once teachers have decided that this is something they feel is worthwhile, they will increasingly find ways to do so.

Using environmental issues in student learning shows students the bigger picture, which can significantly improve motivation. By letting pupils know why the work they are completing is important, and showing them where it fits in on a local and global scale, you’re enabling them to see its value.

Another challenge is being able to bridge the gap between what happens at home and what is taught in schools. For example, if a child is learning about recycling at school, but parents are not open to supporting their learning by adopting recycling practices at home, then the child, especially at a young age, receives very conflicting messages.

Schools are busy places and there are increasing pressures on teachers within the workplace. These can create additional challenges such as gaps between awareness and understanding; motivation to and knowledge of how to become more sustainable; individual to collective empowerment; finding time; budget restraints; linking infrastructure change to mind set change and whole community engagement.

However, with a more directed focus and commitment towards ESD in schools, children generally need very little motivation to care for their environment. You just have to give them a voice and they are away! The problem often comes from adults not understanding the bigger picture about caring for the long term future of the planet.

Strategy for GCC Countries

When it comes to educating locals and expats in the GCC, it can be categorized into three parts:

The physical change: looking at how schools, households and businesses can reduce their waste, water and energy and focus on more sustainable resources in general.

The mind set change: this is all about raising environmental understanding, awareness and action programmes throughout the school and business communities through workshops, cross-curricular activities and presentations, so that everybody is on the 'same page', as well as giving students and employees a voice. This leads to a fundamental change in attitudes and the choices people make.

Learning to respect others and appreciate the environment, as well as giving back to society: this is focused around the opportunities to learn beyond the workplace and home, and connect back to nature, as well as help communities in need. In a nutshell, it about being more caring.

Partnerships and action orientated behaviour within all 3 parts are crucially important to their success. Environmental awareness in itself is not enough, simply because awareness without leading to meaningful action and behaviour change goes nowhere.

Using environmental issues in student learning shows children the bigger picture

Using environmental issues in student learning shows children the bigger picture

This approach can be illustrated in the Beyond COP21 Symposium series that I am currently running globally with the support of Eco-Schools. The event consists of themed high impact presentations from, and discussions with, guest speakers on the SDGs Agenda 2030 and climate negotiations in and beyond Paris; individual & community action; pledge- making and practical activities/workshops.

Local sustainable companies and organisations are invited to showcase their initiatives and engage with students from a variety of schools, both local and expat, in each city or region. Successfully run in Dubai twice and with an upcoming event in Jordan, the Middle East region has certainly embraced the partnership approach when it comes to supporting environmental education initiatives that benefit all those involved.

Role of Technology and Social Media

The greatest role it can play is through the spread of information and ideas, as well as the sharing of good practice within the GCC. Sometimes the hardest thing is to know where to start and how to become motivated, and certainly both can help. Also technology can help to source important resources for teachers. Bee’ah’s School of Environment, which I have been recently developing new online resources for, is a very good example of how well this can work.

Please visit my website http://www.target4green.com for more information about my organization and its activities.

Community Engagement in Recycling Initiatives in Qatar

The current state of environmental custodianship in Qatar leaves much to be desired from the national government and other institutions that publicly endorse initiatives with much fan-fare but do not commit to sustained action. My previous piece titled “Environmental Initiatives in Middle East – Challenges and Remedies” illuminated some of these gaps, but did not provide a detailed description of what underpins this trend and possible solutions might look like. Thus, this article seeks to delve deeper into how state institutions and civil society in Qatar may be able to work cooperatively in staving off further environmental degradation, especially with regards to waste management and recycling.

I believe that real success will be achieved through popular buy-in and a paradigm shift towards recognizing the interconnectedness of humans with their surroundings, which can be encouraged through education. Perhaps more importantly, there needs to be a public acknowledgement that all individuals residing in Qatar have a vested interest in pushing for greater environmental protection enforcement and accountability. In a region that is already faced with a lack of potable water and arable land, allowing the existing course to be maintained is not only risky, it is flat-out dangerous to the nation’s survival.

An Uphill Battle, But a Necessary One

Individuals that either live in or visited a Gulf Cooperation Council (GCC) nation, especially a hydrocarbon-rich rentier state like Qatar, are probably quite familiar with the inadequacies of current recycling initiatives. As someone who has visited the country on three different occasions I can tell you that I have searched high and low for something resembling a recycling bin, can, or other receptacle but to no avail, save for a few located in Education City. One might imagine this to be exceptionally jarring coming from the hyper-attentive, green-obsessed Washington, DC where trash and recycling cans typically are placed together on streets and in buildings.

Further adding to my chagrin is the apparent disconnect between high level, widely publicized recycling improvements and the realities (and consequences) manifesting among general society. For example, last year there was much excitement surrounding the announcement of upcoming environmental reforms in July 2014, but it appears nothing further came to fruition.

The article touches upon some of the apparent hindrances for recycling programs and other environmental initiatives: bureaucracy; paperwork; budgetary constraints. I would add to this list based upon personal experiences: general apathy towards recycling; inaccessibility of bins; perception of additional costs to conducting business.

Fair enough – I acknowledge that some of these issues are out of citizens’ and expats’ hands, but that is no excuse for giving up. The predicted 6.8% GDP growth spurred by the upcoming 2022 FIFA World Cup and hydrocarbon exports will surely put further pressure on an already fragile ecosystem and lead to an uptick in waste production. This is not meant to stoke unnecessary fear, but the equation here is straightforward; more people present in Qatar, more trash will be created from residential and commercial zones. As noted by fellow EcoMENA contributor, Surya Suresh, the nation presently possesses one solid waste facility at Mesaieed and three landfills devoted to particular items, which now seem to be overwhelmed by growing waste inputs.

Possible Solutions: Personal and Community Action

Given this lag in state responses to the existing recycling crisis and future issues stemming from it, readers may be asking what they can do to help. At the personal level, I would encourage Qatari residents, as well as others in neighboring nations, to begin with educating themselves about the current state of recycling initiatives and conducting an inventory of their daily waste generation. EcoMENA website offers a variety of informative pieces and external resources useful to individuals seeking more information.

My latter point about doing a personal inventory is about consciousness-raising about how we each contribute to a wider problem and identifying means of reducing our impact on the environment. Examples from my own life that I believe are applicable in Qatar include counting the number of plastic bags I used to transport groceries and replacing them with a backpack and reusable bags. I also frequently re-appropriate glass jars for storing items, such as rice, spices, and coffee – make sure to wash them well before reuse! It has taken me several years to get to past the social stigmas surrounding reusing containers and to cultivate the future planning to bring my reusable bags with me, but knowing my actions, aggregated with those of my friends and family, positively affect the environment is quite rewarding and reinforces good behavior. Give it a shot and see what happens.

Furthermore, it may be beneficial for the community at large to begin discussing the topic of recycling and what they would like to see, rather than solely wait on state agencies to address issues. Doing so could initially be formulated on a level that many Qatari residents are probably most familiar with: their place of employment, apartment, or neighborhood. After all, if individuals, specifically employers, are expected to bear the increased costs associated with improved recycling then an understanding of what people want is necessary in hopefully resolving issues effectively and with greater community enthusiasm.

Because of the nature of nation-states’ institutions typically being reactive entities and incapable of being aware of every societal problem, it is up to community-level groups to voice their concerns and be committed to change. Organizations such as the Qatar Green Building Council and the Qatar Green Leaders, offer a variety of informative pieces and training services that may help in establishing dialogues between groups and the government. Perhaps this is too idealistic right now, but Qatari residents have organized popular support for other initiatives, notably in the initial pilot recycling program in 2012. Now let us make that a sustained commitment to recycling!

 

References

  1. Andrew Clark, “Environmental Initiatives in Middle East – Challenges and Remedies,” on EcoMENA.org, http://www.ecomena.org/environment-middle-east/.
  2. Doha News Staff, “Official: New, Sorely Needed Recycling Policies in Qatar Afoot,” on Dohanews.co, http://dohanews.co/official-new-sorely-needed-recycling-policies-in/.
  3. Qatar National Bank, “Qatar Economic Insight 2013,” on www.qnb.com.qa  
  4. Surya Suresh, “Waste Management Outlook for Qatar,” http://www.ecomena.org/waste-qatar/
  5. Doha News Staff, “Responding to Community Calls, Qatar Rolls Out Pilot Recycling Program,” http://dohanews.co/responding-to-community-calls-qatar-rolls-out-pilot/.

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The Paper Bag Boy of Abu Dhabi

Abdul Muqeet, also known as the Paper Bag Boy, has risen from being just another ordinary student to an extra-ordinary environmentalist. At just ten years old, Abdul Muqeet has demonstrated his commitment to saving the environment in United Arab Emirates and elsewhere. 

Inspired by the 2010 campaign “UAE Free of Plastic Bags”, Abdul Muqeet, a student of Standard V at Abu Dhabi Indian School, applied his own initiative and imagination to create 100% recycled carry bags using discarded newspapers. He then set out to distribute these bags in Abu Dhabi, replacing plastic bags that take hundreds of years to degrade biologically. The bags were lovingly named ‘Mukku bags' and Abdul Muqeet became famous as the Paper Bag Boy.

Abdul Muqeet’s environmental initiative has catalyzed a much larger community campaign. During the first year, Abdul Muqeet created and donated more than 4,000 paper bags in Abu Dhabi. In addition, he has led workshops at schools, private companies and government entities, demonstrating how to create paper bags using old newspapers. His school along with a number of companies in Abu Dhabi adopted his idea by exchanging their plastic bags for paper bags.

Abdul Muqeet was one of the youngest recipients of Abu Dhabi Awards 2011, for his remarkable contribution to conserve environment. The awards were presented by General Sheikh Mohammad Bin Zayed Al Nahyan, Crown Prince of Abu Dhabi and Deputy Commander of the UAE Armed Forces. In 2011, Abdul Muqeet was selected to attend the United Nation’s Tunza conference in Indonesia where he demonstrated his commitment for a cleaner environment through his paper bag initiative. He is actively involved in spreading environmental awareness worldwide, especially UAE, India, USA and Indonesia.

 

Abdul Muqeet continues to make headlines for his concerted efforts towards a plastic-free environment, and has been widely covered by leading newspapers in UAE and other countries. He tirelessly campaigned for the Rio+20 summit, urging world leaders to commit to the Green Economy. “Plant more trees; use less water; reuse and recycle; always remember that everything in this world can be recycled but not time,” offers Abdul.

He has been remarkably supported by his parents and siblings throughout his truly inspiring environmental sojourn. Abdul Muqeet’s monumental achievements at such a tender age make him a torch-bearer of the global environmental movement, and should also inspire the young generation to protect the environment by implementing the concept of ‘Zero Waste’.

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Saudi Arabia Biorefinery from Algae (SABA) Project

The King Abdulaziz City for Science & Technology (KACST) is funding an innovative project called Saudi Arabia Biorefinery from Algae (SABA Project) to screen for lipid hyper-producers species in Saudi Arabia coastal waters. These species will be the basis for next-generation algal biofuel production. The goal of this project is to increase research and training in microalgae-based biofuel production as well algal biomass with an additional goal of using a biorefinery approach that could strongly enhance Saudi Arabia economy, society and environment within the next 10 years.

The primary mission of the SABA project is to develop the Algae Based Biorefinery – ABB biotechnology putting into operation innovative, sustainable, and commercially viable solutions for green chemistry, energy, bio-products, water conservation, and CO2 abatement. Microalgae are known sources of high-value biochemicals such as vitamins, carotenoids, pigments and anti-oxidants. Moreover, they can be feedstocks of bulk biochemicals like protein and carbohydrates that can be used in the manufacture of feed and food.

The strategic plan for SABA project is based on the achievement of the already ongoing applied Research, Technology Development & Demonstration (RTD&D) to the effective use of microalgae biomass production and downstream extraction in a diversified way, e.g. coupling the biomass production with wastewater bioremediation or extracting sequentially different metabolites form the produced biomass (numerous fatty acids, proteins, bioactive compounds etc.). This interdisciplinary approach including algal biology, genetic engineering and technologies for algae cultivation, harvesting, and intermediate and final products extraction is crucial for the successful conversion of the developed technologies into viable industries.

The first phase of this project entitled “Screening for lipid hyper-producers species in Saudi Arabia coastal waters for Biofuel production from micro-Algae” will build the basis for large scale system to produce diesel fuel and other products from algae grown in the ocean with a strong emphasis on building know-how and training. It will ultimately produce competitively priced biofuel, scaling up carbon capture for a range of major environmental, economic, social and climate benefits in the Kingdom and elsewhere. The project lends itself to an entrepreneurial new venture, working in partnership with existing firms in the oil and gas industry, in energy generation, in water supply and sanitation, in shipping and in food and pharmaceutical production.

The project is gaining from cross-disciplinary cutting edge Research, Technology Development & Demonstration for the industrial implementation of the fourth generation algae-based Biorefinery. The technology development is supported by a consortium of engineers, researchers in cooperation with industry players (to ensure technology transfer), international collaborators (to ensure knowledge transfer) and the Riyadh Techno Valley (to promote spin-off and commercialization of results). 

Since the research topic is innovative in the Kingdom research circles, a strong research partnership was promptly developed by the King Saud University / King Abdulah Institute for Nanotechnology with international distinguished research centers with proved successful experience in this technology development. The Centre of Marine Science (CCMAR) and the Institute of Biotechnology and Bioengineering (IBB) both from Portugal are a guarantee to the successful research-based technology development in the SABA project development and the effective capacity-building for Saudi young researchers and technicians.

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Energy Conservation in Bahrain

bahrain-energyBahrain has one of the highest energy consumption rates in the world. The country uses almost three times more energy per person than the world average. Based on 2014 statistics, the country consumes 11,500 kWh of energy per capita compared with the global average of 3,030 kWh. The country is witnessing high population growth rate, rapid urbanization, industrialization and commercialization with more visitors coming in, causing fast growing domestic energy demand and is posing a major challenge for energy security.

The Government is aware of this challenging task and is continuously planning and implementing projects to enhance the energy production to meet with the growing demand. The issue of efficient use of energy, its conservation and sustainability, use of renewable and non-renewable resources is becoming more important to us. The increasing temperatures and warming on the other hand are also causing more need of air-conditioning and use of electrical appliances along with water usage for domestic and industrial purposes. This phenomenon is continuing in Bahrain and other GCC countries since past two decades with high annual electricity and water consumption rates compared with the rest of the world.

Bahrain’s energy requirement is forecast to more than double from the current energy use. The peak system demand will rise from 3,441 MW to around 8,000 MW. While the concerned authorities are planning for induction of more sustainable renewable energy initiatives, we need to understand the energy consumption scenario in terms of costs. With the prices of electricity and water going up again from March 2017 again, it is imperative that we as consumers need to think and adopt small actions and utilize practices that can conserve energy and ultimately cost.

The country has already embarked on the Energy Efficiency Implementation Program to address the challenge of curbing energy demand in the country over the next years. The National Energy Efficiency Action Plan and the National Renewable Energy Action Plan (NREAP) have already been endorsed. The NREAP aims to achieve long-term sustainability for the energy sector by proposing to increase the share of renewable energy to 5 percent by 2020 and 10 percent by 2030.

Per capita energy consumption in Bahrain is among the highest worldwide

Per capita energy conservation in Bahrain is among the highest worldwide

As individuals, we need to audit how much energy we are using and how we can minimize our usage and conserve it. Whenever we save energy, we not only save money, but also reduce the demand for such fossil fuels as coal, oil, and natural gas. Less burning of fossil fuels also means lower emissions of carbon dioxide (CO2), the primary contributor to global warming, and other pollutants. Energy needs to be conserved not only to cut costs but also to preserve the resources for longer use.

Here are few energy conservation tips we need to follow and adopt:

  • Turning off the lights, electrical and electronic gadgets when not in use.
  • Utilizing energy efficient appliances like LED lights, air conditioners, freezers and washing machines.
  • Service, clean or replace AC filters as recommended.
  • Utilizing normal water for washing machine. Use washing machine and dish washer only when the load is full. Avoid using the dryer with long cycles.
  • Select the most energy-efficient models when replacing your old appliances.
  • Buy the product that is sized to your actual needs and not the largest one available.
  • Turn off AC in unoccupied rooms and try to keep the room cool by keeping the curtains.
  • Make maximum use of sunlight during the day.
  • Water heaters/ Geysers consume a lot of energy. Use them to heat only the amount of water that is required.
  • Unplug electronic devices and chargers when they are not in use. Most new electronics use electricity even when switched off.
  • Allow hot food to cool off before putting it in the refrigerator

Food Waste, Ramadan and the Middle East

With the holy month of Ramadan only a few days away, huge food wastage in the Middle East is again hogging limelight. It is a widely acccepted fact that almost half of the municipal solid waste stream in the Middle East is comprised of food wastes and associated matter. The increasing amount of food waste in the Middle East urgently demands a strong food waste management strategy to ensure its minimization and eco-friendly disposal. 

Food Waste in Ramadan

Middle East nations are acknowleded as being the world’s top food wasters, and during Ramadan the situation takes a turn for the worse. In 2012, the Dubai Municipality estimated that in Ramadan, around 55% of household waste (or approximately 1,850 tons is thrown away every day. In Bahrain, food waste generation in Bahrain exceeds 400 tons per day during the holy month, according to Rehan Ahmad, Head of Waste Disposal Unit (Bahrain). As far as Qatar is concerned, it is expected that almost half of the food prepared during Ramadan will find its way into garbage bins.

The amount of food waste generated in Ramadan is significantly higher than other months. There is a chronic inclination of Muslims towards over-indulgence and lavishness in the holy month, even though the Prophet Muhammad (PBUH), asked Muslims to adopt moderation in all walks of life. Socio-cultural attitudes and lavish lifestyles also play a major role in more food waste generation in Ramadan in almost all Muslim countries.

Economic Implications

The greater the economic prosperity and the higher percentage of urban population, the greater the amount of waste produced. A good example is the case of oil‐rich GCC which figures among the world’s most prolific per capita waste generators. High-income groups usually generate more food waste per capita when compared to less-affluent groups. Hotels, cafeterias, restaurants etc are also a big contributor of food wastes in the Middle East.

Food waste generation is expected to steadily with the rapid growth of regional economies boom. The per capita production of solid waste in Arab cities such as Riyadh, Doha and Abu Dhabi is more than 1.5 kg per day, placing them among the highest per capita waste producers in the world. These statistics point to loss of billions of dollars each year in the form of food waste throughout the Arab world.

Parting Shot

The foremost steps to reduce food wastage are behavioral change, increased public awareness, strong legislations, recycling facilities (composting and biogas plants) and community participation. Effective laws and mass sensitation campaigns are required to compel the people to adopt waste mimization practices and implement sustainable lifestyles. During Ramadan, religious scholars and prayer-leaders can play a vital role in motivating Muslims to follow Islamic principles of sustainability, as mentioned in the Holy Quran and Ahadith The best way to reduce food waste is to feel solidarity towards millions and millions of people around the world who face enormous hardships in having a single meal each day.

 

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Carbon Capture and Storage: Prospects in GCC

Gulf Cooperation Council countries are burgeoning economies which are highly dependent on hydrocarbons to fuel their needs for economic growth. GCC nations are fully aware of the mounting consequences of increasing levels of CO­2 on the environment, mainly attributed to soaring energy demand of domestic and industrial sector. Regional countries are undertaking concrete steps and measures to reduce their carbon footprint through the introduction of renewable energy and energy efficiency measures. Among other options, Carbon Capture and Storage, popularly known as CCS, can be an attractive proposition for GCC nations.

What is CCS

Carbon capture and storage (or carbon capture and sequestration) is the process of capturing waste carbon dioxide from large point sources, such as fossil fuel power plants, transporting it to a storage site, and depositing it where it will not enter the atmosphere, normally an underground geological formation. CCS is a potential means of mitigating the contribution of fossil fuel emissions to global warming and ocean acidification. As at September 2012, the Global CCS Institute identified 75 large-scale integrated projects in its 2012 Global Status of CCS report. 16 of these projects are in operation or in construction capturing around 36 million tonnes of CO2 per annum.

Among notable CCS projects world, In Salah project in Algeria is a fully operational onshore gas field with CO2 injection. CO2 is separated from produced gas and reinjected in the producing hydrocarbon reservoir zones. Since 2004, about 1 Mt/a of CO2 has been captured during natural gas extraction and injected into the Krechba geologic formation at a depth of 1,800m. The Krechba formation is expected to store 17Mt CO2 over the life of the project.

CCS Prospects in GCC

GCC accounts for 0.6% of the global population but ironically contributes 2.4% of the global GHG emissions per capita.  GCC countries are among the top-14 per capita emitters of carbon dioxide in the world. The GCC region is witnessing rapid economic growth and massive industrialization which has led to almost 8% growth in power consumption each year. The region is heavily dependent on hydrocarbons combustion for power generation and operation of energy-intensive industries.

There is an urgent need for carbon abatement measures for the industrial sector in Middle East nations as increasing carbon dioxide emissions will have serious repercussions for GCC and adjoining regions. Some of the potential impacts can be rise in sea level, droughts, heat waves, sandstorms, damage to ecosystem, water scarcity and loss of biodiversity. Carbon dioxide emissions reductions can be achieved from point sources such as refineries, power plants, manufacturing industries etc.

At the regional level, GCC nations have both the drivers and environmental gains to adopt the CCS technologies. Some of the GCC countries are already engaged in R&D initiatives, for example, Saudi Arabia has KACST- Technology Innovation Center on Carbon Capture and Sequestration while Saudi Aramco have their own CCS R&D program for CCS. In Qatar there is the Qatar Carbonate and Carbon Storage Research Center while Bahrain has Sitra Carbon Capture System. Recently, Masdar and ADNOC launched Middle East first Joint Venture for carbon capture usage and storage. On a multilateral level, back to 2007, King Abdullah pledged $300 million to finance a research program on the future of energy, environment and climate change. In addition, a sum of $150 million from Qatar, Kuwait and UAE has been allocated to support CCS research.

To sum up, CCS is a viable option to help GCC countries maintain their hydrocarbons-driven economies while enabling low-carbon electricity generation from existing hydrocarbons powerplants.

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Water-Energy Nexus in Arab Countries

Amongst the most important inter-dependencies in the Arab countries is the water-energy nexus, where all the socio-economic development sectors rely on the sustainable provision of these two resources. In addition to their central and strategic importance to the region, these two resources are strongly interrelated and becoming increasingly inextricably linked as the water scarcity in the region increases.  In the water value chain, energy is required in all segments; energy is used in almost every stage of the water cycle: extracting groundwater, feeding desalination plants with its raw sea/brackish waters and producing freshwater, pumping, conveying, and distributing freshwater, collecting wastewater and treatment and reuse.  In other words, without energy, mainly in the form of electricity, water availability, delivery systems, and human welfare will not function.

It is estimated that in most of the Arab countries, the water cycle demands at least 15% of national electricity consumption and it is continuously on the rise. On the other hand, though less in intensity, water is also needed for energy production through hydroelectric schemes (hydropower) and through desalination (Co-generation Power Desalting Plants (CPDP)), for electricity generation and for cooling purposes, and for energy exploration, production, refining and enhanced oil recovery processes, in addition to many other applications.

The scarcity of fresh water in the region promoted and intensified the technology of desalination and combined co-production of electricity and water, especially in the GCC countries. Desalination, particularly CPDPs, is an energy-intensive process. Given the large market size and the strategic role of desalination in the Arab region, the installation of new capacities will increase the overall energy consumption. As energy production is mainly based on fossil-fuels and this source is limited, it is clear that development of renewable energies to power desalination plants is needed. Meanwhile, to address concerns about carbon emissions, Arab governments should link any future expansion in desalination capacity to investments in abundantly available renewable sources of energy.

There is an urgent need for cooperation among the Arab Countries to enhance coordination and investment in R&D in desalination and treatment technologies.  Acquiring and localizing these technologies will help in reducing their cost, increasing their reliability as a water source, increasing their added value to the countries’ economies, and in reducing their environmental impacts. Special attention should be paid to renewable and environmentally safe energy sources, of which the most important is solar, which can have enormous potential as most of the Arab region is located within the “sun belt” of the world.

Despite the strong relation, the water-energy nexus and their interrelation has not been fully addressed or considered in the planning and management of both resources in many Arab countries. However, with increasing water scarcity, many Arab countries have started to realize the growing importance of the nexus and it has now become a focal point of interest, both in terms of problem definition and in searching for trans-disciplinary and trans-sectoral solutions.

There is an obvious scarcity of scientific research and studies in the field of water-energy nexus and the interdependencies between these two resources and their mutual values, which is leading to a knowledge gap on the nexus in the region.  Moreover, with climate change deeply embedded within the water energy nexus issue, scientific research on the nexus needs to be associated with the future impacts of climate change.  Research institutes and universities need to be encouraged to direct their academic and research programs towards understanding the nexus and their interdependencies and inter-linkages. Without the availability of such researches and studies, the nexus challenges cannot be faced and solved effectively, nor can these challenges be converted into opportunities in issues such as increasing water and energy use efficiency, informing technology choices, increasing water and energy policy coherence, and examining the water-energy security nexus.

References
1. Siddiqi, A., and Anadon, L. D. 2011. The water-energy nexus in Middle East and North Afirca. Energy policy (2011) doi:10.1016/j.enpol.2011.04.023. 
2. Khatib, H. 2010. The Water and Energy Nexus in the Arab Region. League of Arab States, Cairo.
3. Haering, M., and Hamhaber, J. 2011. A double burden? Reflections on the Water-energy-nexus in the MENA region. In: Proceedings of the of the First Amman-Cologne Symposium 2011, The Water and Energy Nexus. Institute of Technology and resources Management in the Tropics and Subtropics, 2011, p. 7-9. Available online: http://iwrm-master.web.fh-koeln.de/?page_id=594.

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Solid Waste Management in the Middle East – Major Challenges

Middle East is one of the most prolific waste generating regions of the world. Lavish lifestyle, ineffective legislations, infrastructural roadblocks, indifferent public attitude and lack of environmental awareness are the major factors responsible for growing waste management problem in the Middle East. High standards of living are contributing to more generation of waste which when coupled with lack of waste collection and disposal facilities have transformed ‘trash’ into a liability.

Major Hurdles

The general perception towards waste is that of indifference and apathy. Waste is treated as ‘waste’ rather than as a ‘resource’. There is an urgent need to increase public awareness about environmental issues, waste management practices and sustainable living. Public participation in community-level waste management initiatives is lackluster mainly due to low level of environmental awareness and public education. Unfortunately none of the countries in the region have an effective source-segregation mechanism.

Solid waste management in the Middle East is bogged down by deficiencies in waste management legislation and poor planning. Many countries lack legislative framework and regulations to deal with wastes. Insufficient funds, absence of strategic waste management plans, lack of coordination among stakeholders, shortage of skilled manpower and deficiencies in technical and operational decision-making are some of the hurdles experienced in implementing an integrated waste management strategy in the region. In many countries waste management is the sole prerogative of state-owned companies and municipalities which discourage participation of private companies and entrepreneurs.

Though Islam put much stress on waste minimization, Arab countries are among the world’s highest per capita waste generator which is really unfortunate. Due to lack of garbage collection and disposal facilities, dumping of waste in open spaces, deserts and water bodies is a common sight across the region. Another critical issue is lack of awareness and public apathy towards waste reduction, source segregation and waste management.

A sustainable waste management system demands high degree of public participation, effective legislations, sufficient funds and modern waste management practices/technologies. The region can hope to improve waste management scenario by implementing source-segregation, encouraging private sector participation, deploying recycling and waste-to-energy systems, and devising a strong legislative and institutional framework.

Silver Lining

In recent year, several countries, like Qatar and UAE, have established ambitious solid waste management projects but their efficacy is yet to be ascertained. On the whole, Middle East countries are slowly, but steadily, gearing up to meet the challenge posed by waste management by investing heavily in such projects, sourcing new technologies and raising public awareness. However the pace of progress is not matched by the increasing amount of waste generated across the region. Sustainable waste management is a big challenge for policy-makers, urban planners and other stake-holders, and immediate steps are needed to tackle mountains of wastes accumulating in cities throughout the Middle East.

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Waste-to-Energy Outlook for the Middle East

The high rate of population growth, urbanization and economic expansion in the Middle East is not only accelerating consumption rates but also increasing the generation rate of all sorts of waste. High-income Middle Eastern countries like Saudi Arabia, UAE, Qatar, Bahrain and Kuwait are counted as world’s largest waste producers in terms of per capita waste generation which is more than 2kg per day in some countries. The urban waste generation from the region has now crossed 150 million tons per year which has forced policy-makers and urban planners to look for sustainable waste management solutions, including recycling and waste-to-energy.

Let us take a look at solid waste generation in major countries across the Middle East region:

Country

MSW Generation

(million tons per annum)

Saudi Arabia

15

United Arab Emirates

6

Qatar

2.5

Kuwait

2

Bahrain

1.5

Egypt

20

Tunisia

2.3

Morocco

5

Lebanon

1.6

Jordan

2

In addition, huge quantity of sewage sludge is also generated in the Middle East which presents a serious problem due to its high treatment costs and risk to environment and human health. On an average, the rate of wastewater generation is 80-200 litres per person each day and sewage output is rising by 25 percent every year across the region.

Conversion Pathways

Municipal solid waste is a very good source of biomass in the Middle East. Municipal solid waste is comprised of organic fraction, paper, glass, plastics, metals, wood etc. Almost 50% of the solid waste is contributed by organic matter.

Municipal solid waste can be converted into energy by conventional technologies (such as incineration, mass-burn and landfill gas capture). Municipal solid waste can also be efficiently converted into energy and fuels by advanced thermal technologies, such as gasification and pyrolysis.

At the landfill sites, the gas produced by the natural decomposition of MSW is collected from the stored material and scrubbed and cleaned before feeding into internal combustion engines or gas turbines to generate heat and power. In addition, the organic fraction of MSW can be anaerobically stabilized in a high-rate digester to obtain biogas for electricity or steam generation.

Anaerobic digestion is the most preferred option to extract energy from sewage, which leads to production of biogas and organic fertilizer. The sewage sludge that remains can be incinerated or gasified/pyrolyzed to produce more energy. In addition, sewage-to-energy processes also facilitate water recycling.

Relevance for Middle East

The variety of technological options available means that waste-to-energy can be applied at a small, localized scale primarily for heat, or it can be used in much larger base-load power generation capacity whilst also producing heat. Waste-to-energy conversion can thus be tailored to rural or urban environments in the Middle East, and utilized in domestic, commercial or industrial applications in the entire region.

The world’s dependence on Middle East energy resources has caused the region to have some of the largest carbon footprints per capita worldwide. The GCC region is now gearing up to meet the challenge of global warming, as with the rapid growth of the waste management sector. During the last few years, UAE, Qatar and Saudi Arabia have unveiled multi-billion dollar investment plans to Improve waste management scenario. In particular, the establishment of Domestic Solid Waste Management Centre in Qatar has catalyzed public interest in deployment of waste-to-energy systems in the Middle East.

Energy recovery from MSW is rapidly gaining worldwide recognition as the fourth ‘R’ in sustainable waste management system – Reuse, Reduce, Recycle and Recover. A transition from conventional waste management system to one based on sustainable practices is necessary to address environmental concerns and to foster sustainable development in the region.

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Wastes as Energy Resource

The tremendous increase in the quantum and diversity of waste materials generated by human activities has focused the spotlight on waste management options. Waste generation rates are affected by standards of living, degree of industrialization and population density. Generally, the greater the economic prosperity and the higher percentage of urban population, the greater the amount of waste produced. A good example are the oil-rich GCC nations who are counted among the world's most prolific per capita waste generators.

Reduction in the volume and mass of wastes is a crucial issue due to limited availability of final disposal sites in the Middle East. There is, no doubt, an obvious need to reduce, reuse and recycle wastes but recovery of energy from wastes is also gaining ground as a vital method for managing wastes and Middle East should not be an exception.

Wastes can be transformed into clean and efficient energy and fuel by a variety of technologies, ranging from conventional combustion process to state-of-the-art plasma gasification technology. Besides recovery of energy, such technologies leads to substantial reduction in the overall waste quantities requiring final disposal. Waste-to-energy projects provide major business opportunities, environmental benefits, and energy security.  Feedstock for waste-to-energy plants can be obtained from a wide array of sources including municipal wastes, crop residues and agro-industrial wastes. 

Let us explore some of major waste resources that are readily available in Middle East and North Africa region:

Municipal Solid Wastes

Atleast 150 million tons of solid wastes are collected each year in the MENA region with the vast majority disposed of in open fields and dumpsites. The major energy resource in municipal solid waste is made up of food residuals, paper, fruits, vegetables, plastics etc which make up as much as 75 – 80 percent of the total MSW collected.

Municipal wastes can be converted into energy by thermochemical or biological technologies. At the landfill sites the gas produced by the natural decomposition of MSW (called landfill gas) can be collected, scrubbed and cleaned before feeding into internal combustion engines or gas turbines to generate heat and power. The organic fraction of MSW can be biochemically stabilized in an anaerobic digester to obtain biogas (for heat and power) as well as fertilizer. Sewage sludge is a big nuisance for municipalities and general public but it is a very good source of biogas, which can efficiency produced at sewage treatment plants.

Agricultural Residues

Crop residues encompasses all agricultural wastes such as bagasse, straw, stem, stalk, leaves, husk, shell, peel, pulp, stubble, etc. Large quantities of crop residues are produced annually in the MENA region, and are vastly underutilised. Wheat and barley are the major staple crops grown in the Middle East region. In addition, significant quantities of rice, maize, lentils, chickpeas, vegetables and fruits are produced throughout the region, mainly in Egypt, Tunisia, Saudi Arabia, Morocco and Jordan. 

Current farming practice is usually to plough these residues back into the soil, or they are burnt, left to decompose, or grazed by cattle. Agricultural residues are characterized by seasonal availability and have characteristics that differ from other solid fuels such as wood, charcoal, char briquette. Crop wastes can be used to produce biofuels, biogas as well as heat and power through a wide range of well-proven technologies.

Animal Wastes

The MENA countries have strong animal population. The livestock sector, in particular sheep, goats and camels, plays an important role in the national economy of respective countries. Many millions of live ruminants are imported each year from around the world. In addition, the region has witnessed very rapid growth in the poultry sector.

The biogas potential of animal manure can be harnessed both at small- and community-scale. In the past, this waste was recovered and sold as a fertilizer or simply spread onto agricultural land, but the introduction of tighter environmental controls on odour and water pollution means that some form of waste management is now required, which provides further incentives for waste-to-energy conversion. The most attractive method of converting these waste materials to useful form is anaerobic digestion.

Wood Wastes

Wood processing industries primarily include sawmilling, plywood, wood panel, furniture, building component, flooring, particle board, moulding, jointing and craft industries. Wood wastes generally are concentrated at the processing factories, e.g. plywood mills and sawmills. In general, processing of 1,000 kg of wood in the furniture industries will lead to waste generation of almost half (45 %), i.e. 450 kg of wood.

Similarly, when processing 1,000 kg of wood in sawmill, the waste will amount to more than half (52 %), i.e. 520 kg wood. Wood wastes has high calorific value and can be efficiency converted into energy by thermal technologies like combustion and gasification.

Industrial Wastes

The food processing industry in MENA produces a large number of organic residues and by-products that can be used as biomass energy sources. These waste materials are generated from all sectors of the food industry with everything from meat production to confectionery producing waste that can be utilised as an energy source. In recent decades, the fast-growing food and beverage processing industry has remarkably increased in importance in major countries of the region.

Since the early 1990s, the increased agricultural output stimulated an increase in fruit and vegetable canning as well as juice, beverage, and oil processing in countries like Egypt, Syria, Lebanon and Saudi Arabia. Wastewater from food processing industries contains sugars, starches and other dissolved and solid organic matter. A huge potential exists for these industrial wastes to be biochemically digested to produce biogas, or fermented to produce ethanol, and several commercial examples of waste-to-energy conversion already exist around the world.

Conclusions

An environmentally sound and techno-economically viable methodology to treat wastes is highly crucial for the sustainability of modern societies. The MENA region is well-poised for waste-to-energy development, with its rich resources in the form of municipal solid waste, crop residues and agro-industrial waste. The implementation of advanced waste-to-energy conversion technologies as a method for safe disposal of solid and liquid wastes, and as an attractive option to generate heat, power and fuels, can greatly reduce environmental impacts of wastes in the Middle East. 

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