Study on techniques of wastewater containing lead which is producing oxalic
Received date: 2004-02-22
Revised date: 2004-02-10
Online published: 2014-09-30
Different precipitants are used to do parallel precipitation test on wastewater containing lead which is producing oxalic. The result indicates using Ca(OH)2 and Na2S as precipitants to treat this type wastewater can improve the capability of sedimentation and filtration of the deposit. The treatment flow and control range of pH are put forward. The practice of this project indicates the concentration of total lead in wastewater decreases from 20 ～ 40 mg/L to 0.38 ～1.84 mg/L, the removal rate of lead is higher than 90%,and the drainage rate can come up standard to 91.7% ～ 100%. Therefore, the environmental quality of water body which accepts contaminant is improved obviously.
Liu Wenhua, Liu Fen, Liu Guosheng, Li Xiaojiang, Lou Tao . Study on techniques of wastewater containing lead which is producing oxalic[J]. Industrial Water Treatment, 2004 , 24(5) : 53 -56 . DOI: 10.11894/1005-829x.2004.24(5)..53
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