强化混凝与活性炭联用处理赣江微污染水源水试验

EXPERIMENT ON PAC COMBINED WITH ENHANCED COAGULATION TREATMENT OF SLIGHTLY POLLUTED RAW WATER IN GAN JIANG RIVER

采用强化混凝与活性炭联用技术对赣江微污染水源水处理进行试验研究。试验结果表明，强化混凝与活性炭联用较常规工艺能减小出水浊度，显著提高CODCr和UV254的去除率，并有效控制出水余铝含量。原水CODMn为4．10—4．25mg，L左右，UV254为0．2—0．3mg，L时，中试系统出水浊度降低了12％左右，出水CODCr和UV：M分别为0．5—0．7mg，L和0．015—0．025mg，L，各自去除率较传统工艺分别提高了36％和40％左右。试验出水余铝浓度均〈0．2mg/L，NH3-N去除率没有明显提高。

The treatment of slightly polluted raw water in Gan Jiang River was investigated using the technology of PAC combined with enhanced coagulation.The result showed the technology can not only decrease turbidity,greatly improve COD_ Mn and UV_ 254 removal efficiency,but also control residual Al effectively.At COD_ Mn of 4.10～4.25 mg/L and UV_ 254 of 0.2～0.3 mg/L in raw water,the effluent turbidity reduced by about 12%,with COD_ Mn and UV_ 254 concentration of 0.5～0.7 mg/L and 0.015～0.025 mg/L respectively.Compared with traditional treatment,the removal rate of COD_ Mn and UV_ 254 was increased by 36% and 40% respectively.Residual Al of effluent was well controlled less than 0.2 mg/L and removal rate of NH_3-N had no remarkable improvement.