Treatment of Textile Wastewater with Chlorine: An Effective Method

A. Quader
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引用次数: 19

Abstract

As the chlorination of textile wastewater achieves all the objectives of its treatment such as color removal and reduction of TDS, BOD and COD; and the treated effluents meet the standards set as per Schedule 12-B of the Environment Conservation Rules-1997 (ECR-97, Bangladesh), the treatment of textile wastewater with chlorine gas is a practical technological option for Bangladesh. If this process which is simple if adopted by the textile sector, the ETP operation would be widely practised for its low operating costs because of low price of chlorine produced by local chlor-alkali plants in the country. Satisfactory operation of the ETPs treating textile wastewater with chlorine at low costs has made this process affordable and attractive to the textile sector. Some of the perceived limitations of chlorination outweighs the greater benefits of textile wastewater treatment with chlorine gas leading to cleaner water bodies which receive these effluents otherwise. Keywords: Textile wastewater, chlorination, ETP, wastewater treatment DOI = 10.3329/cerb.v14i1.3206 Chemical Engineering Research Bulletin 14 (2010) 59-63
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氯处理纺织废水的一种有效方法
由于对纺织废水进行氯化处理,达到了除色、降低TDS、BOD、COD的全部处理目的;处理后的废水符合《1997年环境保护规则》附表12-B规定的标准(ECR-97,孟加拉国),用氯气处理纺织废水对孟加拉国来说是一种实用的技术选择。如果纺织部门采用这一简单的工艺,则由于该国当地氯碱厂生产的氯价格低廉,其操作成本较低,因此将广泛实行ETP操作。etp以低成本处理含氯纺织废水的令人满意的运行使该工艺负担得起并对纺织部门具有吸引力。氯化处理的一些局限性超过了用氯气处理纺织废水的更大好处,从而使接收这些废水的水体更清洁。关键词:纺织废水,氯化,ETP,废水处理DOI = 10.3329/cerb.v14i1.3206化学工程研究通报14 (2010)59-63
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