高浓度含P工业废水的处理工艺  

Treatment of highly concentrated phosphorus industrial wastewater

作　　者：孔志燕[1] 陈雷[1] 陆雪梅[1] 徐炎华[1] 

机构地区：[1]南京工业大学环境学院,江苏南京210009

出　　处：《南京工业大学学报（自然科学版）》2008年第6期67-70,共4页Journal of Nanjing Tech University(Natural Science Edition)

基　　金：江苏高校高新技术产业发展资助项目(JHB05-18);江苏省国际科技合作计划资助项目(BZ2006055)

摘　　要：针对高浓度含P工业废水的特点及其处理难点,研究Fenton氧化加二级化学沉淀的处理工艺.考察氧化剂、pH、沉淀剂等对除P效果的影响.实验结果表明:Fenton试剂中H2O2投加量≥0.10%且n(H2O2)/n(Fe2+)≤7.85,pH控制在5左右,沉淀剂采用亚铁盐的工艺条件下,可使原水总P质量浓度从62.0 mg/L降到0.08 mg/L,达到GB8978—1996《污水综合排放标准》中一级排放标准.The treatment of highly concentrated phosphorus industrial wastewater by Fenton oxidation and 2-chemical precipitation was studied. The effects of oxidant, pH and precipitator on the phosphorus removal were observed. The optimal conditions for the treatment of highly concentrated phosphorus wastewater by Fenton are as follows： dosage of H2O2 ≥0. 1% and n（H2O2）/n（Fe^2＋） ≤7. 85, pH is about 5, and chemical precipitation of Fe^2＋. The total phosphorous in the raw water can be reduced from 62. 0 mg/L to 0. 08 mg/L, and the effluent can meet the National Standard （GB8978--1996）.

关 键 词：含P工业废水 化学沉淀 FENTON氧化 

分 类 号：X703[环境科学与工程—环境工程]