人工湿地出水变清

CREATE_TIME:2019-01-07 VIEWS:294

重庆江津地区蔡家镇的一个人工湿地项目,采用深圳市环境科学研究所开发的“高效复合垂直流人工湿地系统水质净化技术”,设计水量为:600立方/天,处理工艺:生物接触氧化池+人工湿地。生物接触氧化池停留时间:2小时,水质情况:原水水质:COD:350-650 mg/L,NH3-N:35-50 mg/L,SS:160 mg/L。治理要求出水:COD< 60 mg/L,NH3-N< 10 mg/L,SS<10 mg/L。

在6月1日利蒙菌投入之前,该项目的COD、SS出水一直不能达到出水要求,环科所工程师调试结果是湿地出水:COD 为262 mg/L,SS 为 90毫克/升,数据远高于出水要求,并且水色浑浊并带有黄色,在投加利蒙LLMO微生物半个月之后,当地环保监测站的数据显示,治理后的COD为31mg/L,SS<10 mg/L,优于《污水综合排放标准》(GB8978-1996)中规定的一级排放标准,出水明显变清。

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