煤气厂洗气废水处理的试验研究

Experimental Study on Gas Washing Wastewater Treatment for Gasworks in Jiangsu Province

采用铁盐沉淀电解生化工艺进行煤气厂洗气废水处理试验。试验结果表明 :废水经铁盐沉淀、电解及水解酸化工序后 ,废水的可生化性显著提高 ,经好氧生化处理后的水质指标符合国家有关排放标准 ,CODCr的总去除率达 89%。

Experiments on treatment of gas washing wastewater from gasworks are conducted by use of a technique of molysite deposition, electrolysis, and biochemistry. Experimental results show that the ratio of BOD 5/COD Cr rises prominently in wastewater treated by the procedure of molysite deposition, electrolysis, and hydrolytic acidification, and that the quality of tail water treated by the aerobic biochemical procedure satisfies the national discharge standard. The removal of COD Cr could be over 89%.