Solid Waste Management in Tunisia

Solid waste management has emerged as a big challenge for the Mediterranean country of Tunisia. The country, having an estimated population of around 11 million people, produces more than 2.5 million tons of waste each year. Tunisia is experiencing an average increase in waste volume by 3% with per capita waste generation in urban areas being 0.8 kg per day. Biodegradable organic fraction constitutes around 68% of the MSW stream. MSW collection is covered at 80% in urban areas and 10% in rural areas. The country has 10 controlled landfills with a capacity of 1,788,000 tons per year and four … Continue reading

Construction Wastes Management in the UAE

Out of total solid wastes generated in the UAE, the construction and demolition wastes or (C&D wastes) account for 70% of the total weight of solid wastes. Dubai alone produces nearly 5,000 tonnes of construction and demolition waste every day, which is about 70% of the total solid waste generated every day. In Abu Dhabi, C&D wastes account for 71% of total wastes generated. It is expected that construction and development activities and associated C&D waste production will continue to rise in this region. Hence, if not managed appropriately, it is expected that dumping of C&D waste will become uncontrolled. … Continue reading

The Menace of Marine Litter

Marine litter, long a neglected topic, has started to garner some attention. Marine litter is composed of a diverse mix of items from various sources and so a one-size fits all solution is unlikely to be effective. Abandoned, lost and discarded fishing gear (ALDFG), shipping wastes, plastic packaging (bottles, caps, bags, etc.) and plastic manufacturing pellets are amongst the most common and persistent items found. Comparing the feasibility and the financial case for recovery versus prevention for each of these groups reveals a worrying gap in our attempts to deal with the problem. Scale of the Problem Abandoned, lost and discarded fishing … Continue reading

The Menace of Littering and How to Solve It

Littering is a common menace one can witness in all urban areas. Streets, sidewalks, parking lots, roads and highways are mostly covered with food wrappers, soft drink and water bottles, plastic bags, handbills, cigarette butts, tissues, papers and others. Littering is most likely to take place at locations where litter is already ‘present’. The Growing Menace of Litter Around 1.9 billion tonnes of litter end up in the ocean every year, which clearly shows that people tend to throw things randomly anywhere, more often than they throw waste in garbage bins. Litter is not just an ugly or an aesthetic … Continue reading

Role of Reverse Logistics in Waste Management

Reverse logistics is a process whereby companies can become more environmentally efficient through recycling, reusing, and reducing the amount of materials used. A more holistic view of reverse logistics includes reduction of materials in the forward system in such a way that fewer materials flow back, reuse of materials is possible, and recycling is facilitated. The measures aimed at reducing waste begin in the product design phase and incorporate the entire product life cycle, including transportation and final disposal. This will allow minimizing the waste downstream and allowing the product to go backward in the chain for possible re-manufacturer, reuse, … Continue reading

Effective Ways to Tackle the Menace of E-Waste

Daily life has been made far more efficient, and glamorous, as technology improves at phenomenal rates. We are encouraged to go paperless, and drastically reduce waste from paper materials. However, technology has its own waste issues to deal with. Electronic waste (or e-waste), is the fastest growing waste stream, and its disposal is a major environmental concern in all parts of the world. When new technology does out with the old, our current model of disposing of ‘outdated’ technology is harming people, profits and most importantly, the planet. More than 50 million of tons of e-waste is generated globally and the quantity is rapidly … Continue reading

Waste-to-Energy in Jordan: Potential and Challenges

Effective sustainable solid waste management is of great importance both for people’s health and for environmental protection. In Jordan, insufficient financial resources, growing population, rapid urbanization, inadequate management and lacking of technical skills represent a serious environmental challenge confronting local government. At the same time, energy remains Jordan’s top challenge for development. The energy needs to be produced in a sustainable way, preferably from renewable sources which have a minimum environmental impact. To face the future problems in waste management, as well as securing the demand of renewable energy, it is necessary to reuse the wasted resources in energy production. … Continue reading

مقدمة في عملية التسميد

إن عملية التسميد هي  عبارة عن تفاعل معقد بين النفايات والكائنات الحية الدقيقة المتواجدة داخلها . الكائنات الدقيقة التي تنفذ هذه العملية تنقسم إلى ثلاث مجموعات: البكتيريا والفطريات، والفطريات الشعاعية . الفطريات الشعاعية هي شكل من أشكال البكتيريا مثل الفطريات التي تفتت المواد العضوية .المرحلة الأولى من النشاط البيولوجي هو استهلاك السكريات المتوفرة بسهولة عن طريق البكتيريا، مما يسبب ارتفاعا سريعا في درجات الحرارة . تليها  المرحلة الثانية التي تسبب فيها  البكتيريا والفطريات الشعاعية  انهيار السليلوز . المرحلة الأخيرة هي المرحلة  المعنية بإنهيار اليغنينس “lignins” الصلبة من قبل الفطريات . الحلول الوسط لهذه العملية تتخلص  بالتسميد بكلفة منخفضة دون التهوية … Continue reading

Don’t Mess with Dahab – An Introduction

No matter where I were in the world right now, I’d be writing about the same problem – trash –  because it’s not just the streets and shores of Dahab that are littered with rubbish. Travel to coastal cities around the world and you’ll find many of the beaches in much the same state. Cairo and other places in Egypt are also dealing with their own problems of waste management. There always seems to be a lot of talk about the obstacles we face in dealing with this problem: Garbage collection services provided by the city government are inefficient. Dumpsters … Continue reading

Biogas from Animal Wastes

The Middle East and North Africa region has a strong animal population. The livestock sector, in particular sheep, goats and camels, plays an important role in the national economy of regional countries. Millions of animals are imported in MENA each year from around the world. In addition, the region has witnessed very rapid growth in the poultry sector. Animal Waste Management Animal waste is a valuable source of nutrients and renewable energy. However, most of the waste is collected in lagoons or left to decompose in the open which pose a significant environmental hazard. The air pollutants emitted from manure include … Continue reading

My Little Paper Recycling Project

Paper industry is considered as one of the world’s largest consumers of fossil fuels and biggest industrial polluter. The industry is criticized by environmental groups for being responsible for massive deforestation around the world. With the use of modern technology such as the printing press and the highly mechanised harvesting of wood, paper has become a cheap commodity. This has led to a high level of consumption and waste. Worldwide consumption of paper has risen by 400% in the past 40 years, with 35% of harvested trees being used for paper manufacture. Paper wastes constitute as much as one-fourth of … Continue reading

Waste Management in Jeddah

Jeddah, a major commercial hub in the Middle East, is the second largest city in Saudi Arabia. Solid waste management is a big problem in Jeddah as the city’s population is increasing at a rapid pace and has now touched 3.5 million. More than 5,000 tons of solid waste is produced every day and Jeddah municipal authorities are finding it increasingly hard to cope with the problem of urban waste. The management of solid waste in Jeddah begins with collection of wastes from bins scattered across residential and commercial areas. Wastes is collected and sent to transfer stations from where it … Continue reading