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 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

Environmental Best Practices in the Cement Industry

Worldwide, cement production  has almost tripled during the last 15 years, mainly on account of high population growth rate, rapid urbanization, increasing industrialization and large-scale infrastructural development. The growth of cement industry in MENA is marked by factors that are directly connected with sustainability, energy efficiency and raw material supply. Although the factors differ from country to country and cannot be generalized, there are major concerns regarding shortage of raw materials, GHG emissions, dependence on fossil fuels and lack of investment in technological innovations. For the cement sector, key points for an environment-friendly industry are use of alternative raw materials … Continue reading

Waste Management Perspectives for Egypt

Egypt occupies 7th position in the list of countries with the most mismanaged plastic waste, according to a recent report published in Science magazine. The report was based on data collected in 2010 and one must wonder whether the results of the report would have been different if the zabbaleen had been allowed to continue their work unhindered. A History of Zabbaleen The zabbaleen, or garbage collectors, are the descendants of farmers from Upper Egypt who moved to Cairo in the 1940s. Together with another migrant group, they have made a living in Cairo collecting, sorting, salvaging, and recycling the … Continue reading

Waste Management Perspectives for Saudi Arabia

Solid waste management is a big challenge for the government and local authorities in the Kingdom of Saudi Arabia. The country generates more than 15 million tons of municipal waste each year with vast majority diverted to landfills and dumpsites. Recycling, reuse and energy recovery is still at an early stage, although they are getting increased attention. Recycling rate ranges from 10-15%, mainly due to the existence of the informal sector which extracts recyclables from municipal waste stream. Waste management issues in the Kingdom can be resolved by creating a healthy general environment specifically targeting the waste sector which may … Continue reading

Waste-to-Energy Pathways

Waste-to-energy is the use of modern combustion and biological technologies to recover energy from urban wastes. The conversion of waste material to energy can proceed along three major pathways – thermochemical, biochemical and physicochemical. Thermochemical conversion, characterized by higher temperature and conversion rates, is best suited for lower moisture feedstock and is generally less selective for products. On the other hand, biochemical technologies are more suitable for wet wastes which are rich in organic matter. 1. Thermochemical Conversion of Waste The three principal methods of thermochemical conversion of MSW are combustion (in excess air), gasification (in reduced air), and pyrolysis (in … Continue reading

An Ultimate Guide to Green Hajj

The Hajj is one of the five pillars of Islam and is an annual pilgrimage to Makkah. It is a mandatory religious duty for Muslims which must be carried out at least once in lifetime by every adult Muslim who is physically and financially capable of undertaking the journey. The Hajj gathering is considered to be the largest gathering of people in the world whereby Muslims from many countries converge to do the religious rites.  Nearly three million Muslims perform Hajj each year. Making necessary arrangements each year for the growing number of pilgrims poses a gigantic logistic challenge for the Saudi Government and respective authorities, as housing, transportation, sanitation, food … Continue reading

Solid Waste Management in Saudi Arabia

Saudi Arabia has been witnessing rapid industrialization, high population growth rate and fast urbanization which have resulted in increased levels of pollution and waste. Solid waste management is becoming a big challenge for the government and local bodies with each passing day. With population of around 29 million, Saudi Arabia generates more than 15 million tons of solid waste per year. The per capita waste generation is estimated at 1.5 to 1.8 kg per person per day. More than 75 percent of the population is concentrated in urban areas which make it necessary for the government to initiate measures to … Continue reading

Garbage Woes in Cairo

Cairo, being one of the largest cities in the world, is home to more than 15 million inhabitants. Like other mega-cities, solid waste management is a huge challenge for Cairo municipality and other stakeholders.  The city produces more than 15,000 tons of solid waste every day which is putting tremendous strain on city’s infrastructure. Waste collection services in Cairo are provided by formal as well as informal sectors. While local authorities, such as the Cairo Cleanliness and Beautification Authority (CCBA), form the formal public sector, the informal public sector is comprised of traditional garbage-collectors (the Zabbaleen). Around 60 percent of the … Continue reading

New Fines for Littering in Bahrain

Littering is a common phenomenon both in urban and rural areas of Bahrain. 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 etc. Litter has the potential to cause harm to human health, safety, welfare as well as the environment. Littering can be a fire hazard and it attracts pests and rodents. Litter also cause accidents on roads as drivers avoid litter on road. Litter also harm plants, vegetation and natural areas. The temptation to ‘litter’ is usually motivated by disrespect to the law and … Continue reading

Medical Wastes in GCC

There has been a growing awareness of the need for safe management of medical waste all over the world. Medical Waste are generated by all health sectors including hospitals, laboratories, diagnostic and research centers, dental and medical clinics, blood banks, mortuaries and autopsy centres, veterinary hospitals, industrial laboratories etc. Medical wastes which pose the greatest risk to human health are infectious waste (or hazardous medical waste) which constitutes 15 – 25 percent of total healthcare waste. Infectious wastes may include all waste items that are contaminated with or suspected of being contaminated with body fluids such as blood and blood products, used catheters … Continue reading

Energy from Wastes via Thermal Route

Thermal (or thermochemical) conversion systems consist of primary conversion technologies which convert the waste into heat or gaseous and liquid products, together with secondary conversion technologies which convert these products into the more useful forms of energy being heat and electricity. A wide range of technologies exists to convert the energy stored in wastes to more useful forms of energy. These technologies can be classified according to the principal energy carrier produced in the conversion process. Carriers are in the form of heat, gas, liquid and/or solid products, depending on the extent to which oxygen is admitted to the conversion process … Continue reading