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机构地区:[1]清华大学环境科学与工程系
出 处:《环境科学》1999年第3期46-50,共5页Environmental Science
基 金:国家"九五"科技攻关项目
摘 要:采用我国城市供水行业2000年技术进步发展规划水质目标与Ames试验评价现有水处理工艺与模拟水处理工艺的净化效果,为受污染水源的净水工艺选择提供参考依据.结果表明:①现有水厂传统处理(T)工艺出水有嗅味、氨氮、矿物油、亚硝酸盐氮、酚类、多环芳烃类等多项水质超标,与原水相比,致突变活性进一步增强;②在传统处理之前,增加生物预处理(BT)工艺或之后增加活性炭吸附处理(TC)工艺,均能有效改善水质,降低致突变活性;③只有生物处理、传统处理、活性炭吸附、臭氧氧化等的组合工艺(BTC、OBTC)能全面改善和提高饮用水水质,达到2000年规划水质目标要求。Based on the drinking water quality goals proposed by The developing plan of technology progress for municipal and town water supply in 2000and Ames test,a practical and a pilot drinking water treatment processes were assessed,which will be benifit to treatment process selection for polluted source water.The follows can be concluded:Several water quality parameter such as ordor,ammonia,mineral oil,phenol,PAH,etc,cann't meet the criterial in the practical conventional process effluent,compared to source water,mutaginicity of effluent rised.That biotreatment unit was put before conventional process,as well as GAC unit was put after conventional process can improve effluent quality and reduce mutaginicity.Only intergation of biotreatment unit,conventional treatment unit,ozone oxidation and GAC absorption can improved drinking water quality in all aspects,meet the goals of 2000 year and make Ames test result to negative.
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