METHOD OF DEPOSITION OF HEAVY METAL IONS FROM AQUEOUS SOLUTIONS

摘要

FIELD: purification of industrial and domestic sewage. SUBSTANCE: alkaline neutralizer is added to initial solution at pH within 4 to 12.0 to obtain unlike charged sols which are subjected to mutual coagulation. Clarified phase is separated by decantation and deposit is subjected to contact with subsequent portions of initial solution followed by decantation of clarified aqueous phase. EFFECT: greater recovery of heavy metal ions from sewage. 2 dwg , 4 tblh