A method for preparation of high stability solid mineral arsenic growth method Regulation

The present invention relates to a method of regulation of growth of Preparation high stability solid mineral arsenic, including arsenic solution containing a high arsenic removal and curing the arsenic containing solution was harmless. After the present invention the trivalent arsenic in the arsenic containing solution is subjected to catalytic oxidation to pentavalent arsenic, the arsenic oxidation method was Shen lime - Growth Regulation Synthesis of a highly stable solid mineral arsenic, can be directly stockpiling. Obtained by the first method the lime calcium arsenate arsenic sink, and then using the calcium arsenate modulate growth method transitions high stability solid mineral arsenic, compliance with Toxicity Characteristic Leaching GB5085.3-2007 (solid waste identification criteria - extraction procedure toxicity) requirements. The present invention process is short, the effect of heavy arsenic, arsenic sink can be directly discharged after liquid, high stability solid synthetic mineral arsenic, may be in a wide pH range 2 to 11 and under strongly reducing conditions for stockpiling stability.