化学沉淀法处理重金属废水的研究进展  

Chemical precipitation method for treating heavy metal wastewater

作　　者：马健伟[1] 任淑鹏 初阳 宋亚瑞[1] 刘美琪[1] MA Jian-wei;REN Shu-peng;CHU Yang;SONG Ya-rui;LIU Mei-qi(Civil Engineering and Architecture,Northeast Petroleum University,Daqing 163318,China;College of Chemistry,CFHI Technician College,Qiqihaer 161000,China)

机构地区：[1]东北石油大学土木建筑工程学院,黑龙江大庆163318 [2]齐齐哈尔一重技师学院化学系,黑龙江齐齐哈尔161000

出　　处：《化学工程师》2018年第8期57-59,41,共4页Chemical Engineer

摘　　要：重金属不同于有机污染物,其不能够生物降解,长时间接触重金属(铬,铜,镍,汞,镉和铅)极易积累在生物体内。许多重金属具有致癌性和高毒性。化学沉淀法作为目前使用最为广泛的手段之一,在处理含重金属废水方面有很大的优势。本文综述了常见的3种化学沉淀法:加碱沉淀法,硫化物沉淀法,铁氧化物沉淀法在重金属废水处理中的进展,并对未来化学沉淀法的发展提出了展望。Heavy metals are different from organic pollutants. They cannot be biodegraded. Long-term exposure to heavy metals（chromium, copper, nickel, mercury, cadmium, and lead）can easily accumulate in living organisms. Many heavy metals are carcinogenic and highly toxic. As the most widely used heavy metal treatment method, chemical precipitation method has a great advantage in the treatment of heavy metals. In this paper, three common chemical precipitation methods are summarized： the progress of alkali precipitation, sulfide precipitation and iron oxide precipitation in the treatment of heavy metal wastewater, and the future prospects of chemical pre-cipitation treatment of heavy metal wastewater are presented.

关 键 词：重金属 废水 化学沉淀法 水体修复 

分 类 号：X703[环境科学与工程—环境工程]