Use of Sewage Sludge in Cement Industry

The MENA region produces huge quantity of municipal wastewater which represents a serious problem due to its high treatment costs and risk to environment, human health and marine life. The per capita wastewater generation rate in the region is estimated at 80-200 litres per day. Sewage generation across the region is rising by an astonishing rate of 25 percent every year. Municipal wastewater treatment plants in MENA produce large amounts of sludge whose disposal is a cause of major concern. For example, Kuwait has 6 wastewater treatment plants, with combined capacity of treating 12,000m³ of municipal wastewater per day, which produce around … Continue reading

Fuel Pellets from Solid Wastes

Municipal solid waste is a poor-quality fuel and its pre-processing is necessary to convert it into fuel pellets to improve its consistency, storage properties, handling characteristics, combustion behaviour and calorific value. Technological improvements are taking place in the realms of advanced source separation of MSW, resource recovery and production of MSW fuel pellets in both existing and new plants for this purpose. There has been an increase in global interest in the preparation of MSW fuel pellets or Refuse Derived Fuel (or RDF) so let us take a close look at this interesting alternative fuel. Pelletization of Muncipal Solid Waste … Continue reading