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Volume 25 Issue 1
Aug.  2021
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Article Contents
PENG Changsheng, MENG Hong, LU Shouci, GU Qingbao. Choice of Technological Process and Chemical Medicine for the Disposal of Mixed Electroplating Wastewater by Chemical Methods[J]. Chinese Journal of Engineering, 2003, 25(1): 23-25. doi: 10.13374/j.issn1001-053x.2003.01.007
Citation: PENG Changsheng, MENG Hong, LU Shouci, GU Qingbao. Choice of Technological Process and Chemical Medicine for the Disposal of Mixed Electroplating Wastewater by Chemical Methods[J]. Chinese Journal of Engineering, 2003, 25(1): 23-25. doi: 10.13374/j.issn1001-053x.2003.01.007

Choice of Technological Process and Chemical Medicine for the Disposal of Mixed Electroplating Wastewater by Chemical Methods

doi: 10.13374/j.issn1001-053x.2003.01.007
  • Received Date: 2001-06-04
    Available Online: 2021-08-17
  • A technological process for the disposal of mixed electroplating wastewater under the alkaline condition was chosen by thermodynamic analysis, theoretical calculations, and experiment investigations. In this process, NaClO was chosen as oxidant, Na2S and FeSO4 as reducers. The optimal ratio of Na2S and FeSO4 was determined as Na2S 80%-90%, FeSO4 10%-20%. Using Na2S and FeSO4 as oxidants can reduce the sludge quantity by 60%-70% comparing with using FeSO4 only. A real project by this technology has already obained good results.

     

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