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The Determination and Recovery of Electroplating Chromium in Wastewater

LUO Wenqian1,LIU Cunhai2(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 K2Cr2O7 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.
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