The Determination and Recovery of Electroplating Chromium in Wastewater
LUO Wenqian1,LIU Cunhai2(1.Chemistry & Life-Science Department, Ankang Teachers College, Ankang725000, China; 2. Department of Chemical Engineering, Shaanxi University of Science Technology, Xianyang 712081, China)
Combinating the traditional chemical method with chemical flocculation technology, we found a new complex flocculation to treat the electroplating chromium wastewater. By treating preliminarily, purring and purifying, recrystalizing, we obtained K2Cr2O7 crystal with high fineness at low temperature. So we not only prevented the chromium pollution to ecological environment but also found out the value of wastewater.