接触式A/O工艺对农业园区废水的处理效果及受纳水体流向上污染物浓度的变化规律
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摘要
采用接触式A/O工艺处理农业园区废水,处理后的达标废水排入园区景观水体。通过对污水处理站的进、出水水质和景观水体的水质监测,研究污水处理站的运行效能及收纳水体流向上污染物的浓度变化规律。数据结果显示,当进水CODcr、NH_4-N、TP分别为21.8~49.2mg/L、2.06~4.99 mg/L和0.66~1.90 mg/L时,出水浓度分别不超过6.5 mg/L、1.98 mg/L和0.86 mg/L,全部达到《城镇污水处理厂污染物排放标准》(GB18918—2002)一级B标准,说明处理系统具有较高脱氮除磷功能。对景观水体的水质监测表明,COD_(Mn)、NH_4-N、TP数值在水体流向上呈非线性下降趋势,水体的稀释作用和微生物降解作用共同导致这一变化。
引文
[1]沈东升,刘新文,龙焰.农村小城镇生活和工业综合污水的达标处理工艺技术研究[J].农业工程学报,2006,22(5):135-139.
[2]KornarosM,Lyberatos G.Biodegradable fraction oforganic carbon estimated under oxic and anoxic conditions[J].W atRes,2003,37:2242-2247.
[3]E、ZerCe Inar,C P Leslie G rady Jr.Aerobic and anoxicbiodegradation of benzoate:stability of biodegradative capability under endogenous conditions[J].W at Res.2001,35:1015-1021.
[4]atjana T,Jana Z K.Toxicity evaluation of wastewater from the pharmaceutical industry to aquatic organisms[J].W at Sci-Tech,1999,39:71-76.
[5]国家环境保护总局.水和废水监测分析方法(第4版)[M].北京:中国环境科学出版社,2002.
[2]KornarosM,Lyberatos G.Biodegradable fraction oforganic carbon estimated under oxic and anoxic conditions[J].W atRes,2003,37:2242-2247.
[3]E、ZerCe Inar,C P Leslie G rady Jr.Aerobic and anoxicbiodegradation of benzoate:stability of biodegradative capability under endogenous conditions[J].W at Res.2001,35:1015-1021.
[4]atjana T,Jana Z K.Toxicity evaluation of wastewater from the pharmaceutical industry to aquatic organisms[J].W at Sci-Tech,1999,39:71-76.
[5]国家环境保护总局.水和废水监测分析方法(第4版)[M].北京:中国环境科学出版社,2002.