水解酸化—好氧生物处理焦化废水的试验研究

对处理焦化废水的两种工艺的试验研究表明，采用水解酸化－好氧生物处理较单一好氧生物处理可取得良好的效果。水解酸化作为焦化废水的预处理比较适宜。当实际焦化废水进水CODcr浓度为2214mg/L，水解酸化停留时间12h，好氧曝气时间18h，间歇动态试验出水CODcr浓度为172mg/L时，CODcr的去除率达92．23％，满足污水综合排放标准（GB8978－95）的排放要求。

Experimental Research on Treatment of Coking Wastewater with Hydrolytic Acidification-Aerobic Organisms

The experimental research on two processes of treatment of coking wastewater shows that adopting hydrolytic acidification-aerobic organisms treatment can get better results than adopting single aerobic organisms treatment. The hydrolytic acidification is more suitable to be a pretreatment for coking wastewater. When inlet CODcr density of actual coking wastewater is 2214mg/L, retention period of hydrolytic acidification is 12h, aerobic aeration period is 18h and outlet CODcr density obtained from intermittent dynamic test is 172mg/L, the removing ratio of CODcr is up to 92.23%, satisfying comprehensive sewage effluent standard (GB8978-96).