新生态铁锰氧化物的混凝及强化混凝效能分析  

Analysis on Coagulation and Enhanced Coagulation Efficiency of Freshly Formed Fe/Mn Oxide

作　　者：张立珠[1] 马军[1] 陈忠林[1] 余敏[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院

出　　处：《中国给水排水》2008年第5期94-97,共4页China Water & Wastewater

基　　金：哈尔滨市青年科学基金资助项目(2005AFQXJ053)

摘　　要：采用FeSO4与KMnO4反应制备成新生态铁锰氧化物,并对松花江水进行处理。试验结果表明:新生态铁锰氧化物较新生态二氧化锰的除污效果好,但新生态铁锰氧化物的除污能力会随着放置时间的延长而逐渐下降;在不同温度和浊度的松花江水的混凝试验中,浊度低时新生态铁锰氧化物对水中有机物的去除效果较好,温度对其混凝效果影响较小;利用新生态铁锰氧化物强化硫酸铝的混凝过程,能够明显提高对低温、低浊水中有机物的去除效果,对UV254的去除率较单独投加硫酸铝时几乎提高了1倍,对TOC的强化去除作用在混凝剂投量低时更为明显。Freshly formed Fe/Mn oxide was prepared by oxidation of ferrous sulfate with potassium permanganate and was applied to treat Songhua River water.The results show that the freshly formed Fe/Mn oxide has higher organic removal efficiency than the freshly formed manganese dioxide.But the organic removal efficiency decreases when freshly formed Fe/Mn oxide is placed for a period of time.The lower turbidity is beneficial for organic removal,while the temperature has little effect on organic removal.Enhancing the aluminum sulfate coagulation by freshly formed Fe/Mn oxide can significantly improve the organic removal efficiency from water with low temperature and low turbidity.The removal rate of UV254 is doubled compared with single addition of aluminum sulfate,and the enhanced removal efficiency of TOC is more significant at low coagulant dosage.

关 键 词：新生态铁锰氧化物 二氧化锰 混凝 强化混凝 UV254 有机物 

分 类 号：TU991.22[建筑科学—市政工程]