خفض تراكيز الكروم و السيانيد في المياه العادمة الصناعية باستخدام بدائل المعالجات الكيميائية

Abstract EN

The attempt on Chromium and Cyanide removing from industrial wastewater of chemical plotting was achieved by using the natural polymer ( animal gelatin 0 and calcium salts .

Among three treatments with non treated wastewater , we were selected the treatment with calcium chloride and gelatin in which the chromium (Cr +6 ) reduced from 3.5 mg /l to 0.86 mg / l and the cyanide from 0.06 mg /l to 0.03 mg / l .

The treatment with gelatin alone reduced concentration of the cyanide to 0.015 mg / l.

Chromium adsorption in three treatments after two hours of stabling was ranged between 37 – 75 % and cyanide 30 – 75 % which became within the limitation.