Tag Archives: Cement Kilns

Desalination Membranes as RDF for Cement Kilns: Opportunities and Constraints

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The rapid expansion of desalination through reverse osmosis has significantly transformed global water resource management, but it has also created a growing challenge related to the management of end-of-life membranes. These industrial wastes, mainly composed of engineering polymers such as polyamide, polysulfone, and polypropylene, exhibit physicochemical properties that, while initially optimized for filtration, may become an asset within an energy recovery framework [1-2]. The average lifespan of reverse osmosis membranes ranges from five to ten years, generating substantial waste streams worldwide [1]. As an order of magnitude, a desalination plant with a capacity of 100,000 m³/day can generate between 2,000 … Continue reading →

The Use of Drilling Wastes in the Cement Industry

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During the exploration and production of oil, huge amounts of drilling wastes are produced in the form of mud and cuttings.  As per conservative estimates, around 0.37 kg of drilling wastes is generated for every barrel of oil produced. The American Petroleum Institute (API) has estimated that approximately 1.21 barrels of total drilling wastes are generated for every foot drilled. The Middle East oil and gas industry has made a lot of effort in order to reduce the environmental impact of their activities; modern drilling methods such as horizontal drilling, navigating the drill bits three dimensionally through the earth, contacting … Continue reading →

Use of Sewage Sludge in Cement Industry

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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 →