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文献综述
对城市生活污水的处理工艺研究摘要:随着经济的发展,城市生活污染物种类多样化,与此同时,污水厂的出水水质也在不断提高,高标准的排放要求使水处理工艺中二级处理和深度处理的工艺选择显得愈加重要。
较多的污水厂在二级处理中选择MBR、AAO、SBR和氧化沟等处理工艺。
研究不同的生物脱氮工艺,优化控制条件,降低成本,达到经济和效益双目标,是目前发展研究的方向。
本文分析了各处理工艺的适用条件,并简述了目前适用我国城市污水处理的工艺发展趋势。
关键词:城市污水AAO MBR SBR氧化沟 Study on the Treatment Technology of Urban Domestic SewageAbstract: With the development of economy, the variety of pollutants in urban life, at the same time, the effluent water quality of sewage plants is also constantly improving, the high standard of discharge requirements make the water treatment process in the secondary treatment and advanced treatment process selection is more and more important. MBR, AAO, SBR and oxidation ditch are used in many wastewater treatment plants in the secondary treatment. Research on different biological nitrogen removal processes, optimize the control conditions, reduce the cost, and achieve the dual goals of economy and benefit, is the current direction of development and research. In this paper, the application conditions of each treatment process are analyzed, and the development trend of the process applicable to urban sewage treatment in China is briefly described.Key words: municipal sewage;AAO;MBR;SBR;oxidation ditch;一、前言 随着国家政策对生态的愈加重视,对污水的收集、处理和排放工业也愈加引起人们的重视,污水的资源化处理也被越来越多的人推用。
由于国家工业和新型科技的崛起,在经济和生态环境同步展开的同时,生物污水中多种洗涤剂等物质的混合和水质富营养化的严重化使污水的处理受到了严峻的挑战。
所以污水厂处理工艺的选用显得格外重要。
越来越多的研究方向已转向对污水厂污水进行资源化处理。
同时,已有很多研究对不同污水水质的处理提出了新的改进方法。
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