削减电解金属锰工艺废水的生产实践  

Production practice of reducing wastewater from electrolytic metal manganese

作　　者：汪启年[1,2] 王璠[1] 高小娟[1] 

机构地区：[1]中国环境科学研究院,北京100012 [2]中国矿业大学化学与环境工程学院,北京100083

出　　处：《中国有色冶金》2012年第2期62-64,73,共4页China Nonferrous Metallurgy

基　　金：国家水体污染控制与治理专项课题:"稀土;电解锰和黄金冶炼等典型重污染冶金行业清洁生产水污染防治技术评估研究与示范"(课题编号2009ZXO7529-005);科技部2010年科研院所专项资金项目"电解锰电解后序工段连续刷沥逆洗及自控技术"(项目编号:2010EG166314)

摘　　要：结合生产实际,分析了电解金属锰废水产生量大的原因。介绍了采用电解金属锰工艺废水全过程控制技术对金旭冶化有限责任公司5 000 t/a电解金属锰生产线进行的改造。生产实践表明:通过改造,电解液和钝化液挟带量削减65%,废水水量削减80%,通过离子交换几乎全部回收废水中的Mn^(2+)、Cr(Ⅵ),将其回用到生产工艺中,有效解决目前电解金属锰废水处理中存在的铬渣二次污染问题。Combining with the actual production, the cause of a large amount of electrolytic metal manganese （EMM） wastewater was analyzed. The whole process control technology of EMM wastewater was introduced. After the technology was used in 5000 t/a production line of EMM in Jinxu metallurgical Co.Ltd., 65% of electrolyte and passivation solution which adhered on the surface of cathode board was reduced, and 80% of wastewater from product washing was reduced. Almost all Mn^2＋ and Cr （Ⅵ） in wastewater were recovered with ion exchange. Then they were reused in production process so as to effectively solve the problems of secondary pollution caused by Cr-contained residue in present treatment of EMM wastewater.

关 键 词：电解金属锰废水 离子交换 清洁生产 

分 类 号：X756[环境科学与工程—环境工程]