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- W2360030880 abstract "【Objective】 Dried sludge of municipal wastewater treatment plant was taken as admixture to produce sludge bricks with low water absorption and high compression strength,in addition,several factors were analyzed influencing the property of bricks,which provided theoretical basis for reducing the operating costs of sewage treatment plants and eliminating potential hazards of sludge on the environment.【Method】 Sludge bricks were prepared with sludge and clay,the change of compressive strength and water absorption of which were studied under the conditions of different sludge contents,molding pressures,sintering temperatures and holding times so that we can obtain the optimum conditions of production of bricks.【Result】 When the sludge content was 0-200 g/kg,the compressive strength of bricks significantly reduced but water absorption increased with the increasing content of sludge;When the molding pressure was 20-80 MPa,the compressive strength of bricks increased first and then decreased while water absorption first increased and then decreased;When the sintering temperature was 900-1 100 ℃,compressive strength of bricks increased while water absorption decreased with increasing temperature;When the holding time was more than 1.5 h,the compressive strength decreased and water absorption increased accordingly with the time prolonging.【Conclusion】 Given consideration to both the property of mud bricks and the principle of energy saving and environment protecting,we found the optimized conditions of sludge-brick preparation:the sludge content 100 g/kg,molding pressure under 60 MPa,sintering temperature 1 050 ℃ and the holding time 1.5 h." @default.
- W2360030880 created "2016-06-24" @default.
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- W2360030880 date "2011-01-01" @default.
- W2360030880 modified "2023-09-23" @default.
- W2360030880 title "The development of sludge-brick and study on its influential factors" @default.
- W2360030880 hasPublicationYear "2011" @default.
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