科研之友
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摘要
The textile industry is characterized by huge water consumption and produced wastewater. The end-of-pipe treatment technology moves an undesirable waste material from one medium to another, thus tending to create chains of waste products. %26lt;br%26gt;The alternative solution of water pollution control at the source significantly reduces the pollution load. In the present study, the cleaner production (CP) opportunities for a cluster of five textile factories versus end-of-pipe treatment have been investigated. The CP opportunities proposed are the following: replacement of acetic acid by formic acid, elimination of the bisulfite treatment step after full bleaching of cones or fabric, replacing chemical scouring by bio-scouring, avoiding the use of carrier in polyester dyeing and replacing mono-functional reactive dyes by bi-functional dyestuffs. The use of Upflow Anaerobic Sludge Blanket (UASB) reactor, followed by either activated sludge treatment or chemical coagulation treatment, can produce treated effluent satisfying the Egyptian standards regulating wastewater discharge into receiving water bodies.
- 出版日期2013-4
