高铁酸钾处理景观水体的效果研究  

Treatment Effect of Landscape Water by Potassium Ferrate

作　　者：李晨光[1] 伊学农[1] 高玉琼[1] 王国华[2] 

机构地区：[1]上海理工大学环境与建筑学院,上海200093 [2]上海市政工程设计研究总院,上海200092

出　　处：《中国给水排水》2010年第5期73-76,共4页China Water & Wastewater

基　　金：国家科技支撑计划项目(2007BAK27B05-4);上海市科学技术委员会资助项目(08QB14031)

摘　　要：研究了高铁酸钾对景观水体中浊度、COD、溶解性COD、TN、TP和藻类的去除效果,并与聚合氯化铝(PAC)、硫酸铝和氯化铁的去除效果进行了对比,同时还考察了上述几种药剂的污泥产生情况以及高铁酸钾对水体可生化性的影响。结果表明,与其他几种混凝剂相比,高铁酸钾对浊度、COD、溶解性COD、TP和藻类的去除效果更好,但对TN的去除效果比PAC略差;高铁酸钾去除的污染物量较多,产生的污泥量较少;高铁酸钾可提高景观水体的BOD5/COD值,显著改善了水体的可生化性。The removal efficiencies of turbidity, COD, soluble COD, TN, TP and algae from landscape water by potassium ferrate were studied and compared with those by polymeric aluminium chloride （PAC） , aluminium sulphate and ferric chloride. Sludge production with the above-mentioned chemicals and the effect of potassium ferrate on water biodegradability were investigated. The results show that potassium ferrate has a higher removal efficiency of turbidity, COD, soluble COD, TP and algae than the other three coagulants, but a lower removal efficiency of TN than PAC. Potassium ferrate produces less sludge and removes more contaminants. By increasing BOD5/COD value of landscape water, potassium ferrate can improve water biodegradability.

关 键 词：高铁酸钾 景观水体 污泥 可生化性 混凝 

分 类 号：X703[环境科学与工程—环境工程]