The Study about Removal of Arsenic and Lead by Chemical Precipitation and Adsorption

Hao Jiang, Jianming Liu, Juan Wang, Shu Zhang


A new method about removal of arsenic and lead is developed to solve the problem that is derived from a sulfuric acid plant contained excess Arsenic (304mg / L), lead (4.72mg / L). The combination removal method is called Chemical precipitation - adsorption. The result showed that the removal rate of arsenic can reach 99.9% and the removal rate of lead can nearly reach 99.99 %. What`s more, the remaining arsenic and lead can reach national discharge standards in the Industrial Waste Water.


arsenic; lead; chemical precipitation; adsorption

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