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Recycling of Concentrated Chrome(VI) Containing Waste Water from Electroplating Plants
https://doi.org/10.18412/1816-0395-2016-2-22-24
Abstract
A method of recycling of concentrated chrome(VI) containing waste water from electroplating plants is described. Hydrazine hydrate solution is used as a chrome(VI) reducer and at the same time a separator of heavy metal hydroxides, which allows to decrease the content of salts in the filtrate. Non-ferrous metals are removed from precipitated hydroxides by repulping and washing with ammonia-water mixture. Further drying and baking result in the output of colorants for paints and coatings.
About the Authors
V.F. Olontsev
Powder Materials Research Center, Perm National Research Polytechnic University
Russian Federation
Dr. Sci. (Eng.), lead. researcher
Russian Federation
Dr. Sci. (Eng.), lead. researcher
E.A. Sazonova
Institute for nanotechnological issues, Ural division of Russian Academy of Natural Sciences
Russian Federation
Cand. Sci. (Chem.), researcher
Russian Federation
Cand. Sci. (Chem.), researcher
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Review
For citations:
Olontsev V., Sazonova E. Recycling of Concentrated Chrome(VI) Containing Waste Water from Electroplating Plants. Ecology and Industry of Russia. 2016;20(2):22-24. (In Russ.) https://doi.org/10.18412/1816-0395-2016-2-22-24
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