METHOD FOR REMOVING AND FIXING ARESENIC FROM SOLUTION CONTAINING ARSENIC

摘要

PROBLEM TO BE SOLVED: To provide a method for removing and fixing arsenic as scorodite stable in crystallinity without losing valuable metals such as copper. SOLUTION: In a method for removing and fixing arsenic from a solution containing arsenic which contains a non-ferrous metals containing copper and/or zinc and arsenic, iron (ii) solution and/or iron (III) solution is added to the solution containing arsenic and reacted to generate scorodite, and the scorodite containing non-ferrous metals containing copper is recovered through solid-liquid separation in a first process, water is added to scorodite containing non-ferrous metals including copper obtained in the first process to achieve re-pulping, and the non-ferrous metals containing copper contained in scorodite is dissolved in the solution to be separated from scorodite.