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基于A/O工艺的高效污水处理装置中试研究 被引量:2

Pilot Study on High Efficient Wastewater Treatment Device Based on A/O Process
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摘要 针对村镇生活污水的处理需求,设计开发了一套基于AO工艺的高效污水处理中试实验装置,研究了不同进水水温、气水比和硝化液回流比条件下污染物的净化效果。结果表明:在处理量为130 m^(3)/d,缺氧区和好氧区水力停留时间分别为4 h和6 h,固液分离区表面负荷1.5 m^(3)/(m^(2)·h),气水比3:1~4.5:1,硝化液回流比200%~220%的条件下,中试装置处理出水COD、NH_(3)-N和TN均能稳定达到《城镇污水处理厂污染物排放标准》(GB 18918-2002)中的一级A标准。无动力污泥回流能够显著增加生化区微生物总量,从而强化系统的污染物去除效果。 Aiming at the demand of domestic sewage treatment in villages and towns,a pilot-scale experimental device for high efficient wastewater treatment based on A/O process was designed and constructed to study the purification effect on pollutants under different conditions such as influent water temperature,air-water ratio,and reflux ratio of nitrification solution.The results showed that under the conditions of 130 m^(3)/d of the treatment capacity,4 h and 6 h of hydraulic retention time for anoxic/oxic,1.5 m^(3)/(m^(2)·h)of surface load of the solid-liquid separation zone,3:1~4.5:1 of airwater ratio,and 200%~220%of the reflux ratio of nitrification solution,the concentrations of COD,NH_(3)-N,and TN in the pilot-scale experimental device effluent reached the first level A criteria specified in Discharge Standard of Pollutants for Municipal Wastewater Treatment Plant(GB 18918-2002).Non-powered sludge reflux could significantly increase the total amount of microorganisms in the biochemical zone,thereby enhancing the pollutants removal effect of the system.
作者 林明 刘雷 左晶 王磊 毛克威 梅立永 LIN Ming;LIU Lei;ZUO Jing;WANG Lei;MAO Kewei;MEI Liyong(Shenzhen Branch of Chongqing Environmental Protection Engineering Design&Research Institute Co.,Ltd,Shenzhen 518071,China;Chongqing Environmental Protection Engineering Design&Research Institute Co.,Ltd,Chongqing 400020,China;Shenzhen-Hong Kong Institution of Industry,Education&Research Environmental Engineering Technique Co.,Ltd,Shenzhen 518071,China)
出处 《水处理技术》 CAS CSCD 北大核心 2022年第7期131-135,共5页 Technology of Water Treatment
关键词 A/O工艺 生活污水 无动力污泥回流 脱氮 anoxic/oxic process domestic sewage non-powered sludge reflux nitrogen removal
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