摘要
探讨了石灰-硫酸铁三级中和法处理重金属酸性废水过程中pH值的设定。一级中和槽pH值设定为7-8;二级中和槽pH值设定为10;三级中和槽pH值设定为8-9、Fe/As值为20,处理后的废水中重金属离子、砷、氟及pH值均达到废水排放标准。
Discuss pH value enactment in treating heavy-metal acidic waste water with lime-sulphuric iron three steps neutralizing method. The pH value in first step is 7-8; the second step is 10; the third is 8-9, Fe/As value is 20, after disposal the heavy metal ions arsenic fluorin and pH value of the waste water will all reach waste water draining standard.
出处
《有色矿冶》
2004年第3期61-62,共2页
Non-Ferrous Mining and Metallurgy
关键词
石灰-硫酸铁三级中和
PH值
设定
lime-sulphuric iron three steps neutralizing
pH value
enactment
