折点氯化法处理四氧化三锰工业污水  

Treatment in Sewage of Mn_3O_4 by Breakpoint Chlorination

作　　者：马金保[1] 鲁俊[1] 陈思学[1] 

机构地区：[1]中钢集团天源科技股份有限公司南京磁性材料厂,江苏南京211800

出　　处：《中国锰业》2013年第2期49-51,共3页China Manganese Industry

摘　　要：四氧化三锰的制备主要采用铵盐催化氧化法,用该法进行生产时将产生大量含有少量氨氮的废水。为了能够达标排放,用正交实验法对折点氯化法除氨氮的pH值,反应时间,原料配比进行了研究。试验结果表明,折点氯化法可用于四氧化三锰工业污水的处理,当pH=7,反应时间10 min,次氯酸钠加入量为1∶800(体积比)时,氨氮去除率最高,可以达到98%以上。The article tells of production of the mangano-manganic mainly by ammonium salt catalytic oxidation. The method is used in production that will get the massive contain a few ammonia nitrogen wastewater. To achieve emissions standards, the effects of pH and reaction time and mixed proportion on yield are studied by orthogonal method. The results of tins experiment shows that this system can be widely used for industrial wasterwater of mangano-manganic oxide when pH = 7, reaction time was 5 min, sodium hypochlorite 1 ： 800 （ volume ratio ）, removal rate for ammonia nitrogen reached to 98%.

关 键 词：四氧化三锰 氨氮 折点氯化法 

分 类 号：TQ137.12[化学工程—无机化工] X757[环境科学与工程—环境工程]