Ammonium Paratungstate(APT) Removal of Arsenic and Fluoride

Aimed at research and Design Institute of ammonium paratungstate the production waste water to put forward a reasonable process,so that the treated wastewater discharges standards.The results showed: the two methods could meet the national discharge standard.One is waste acid neutralization-lime precipitation,two is sulfuric acid neutralization-lime precipitation of arsenic and fluoride can meet the national wastewater discharge standards;fluoride ion concentration was increased to700mg/L,the method can also be used.

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