Study on anode indirect oxidation in electrolysis treatment of pharmaceutical wastewater

ZHANG Yuefeng, JIN Yizhong, XU Hao

doi:10.11894/1005-829x.2002.22(11).22

Industrial Water Treatment >

2002 , Vol. 22 >Issue 11: 22 - 24

DOI: https://doi.org/10.11894/1005-829x.2002.22(11).22

Study on anode indirect oxidation in electrolysis treatment of pharmaceutical wastewater

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Department of Environmental Engineering, Yuquan Campus, Zhejiang University, Hangzhou 310027, China

Received date: 2002-03-30

Online published: 2010-10-01

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Abstract

Experiments are conducted to study the role of anode indirect oxidation of electrolysis in treatment efficiency.In this investigation, the ef fects of NaCl on removing chromaticity and COD_Crof pharmaceut ical wastewater have been studied.The study is also done to advance the know ledge of the influence of NaCl dosage on the electrolysis efficiency.Compared w ith the effects of Na₂SO₄, NaNO₃ on the elect rolysis ef ficiency,the results show that the COD_Cr removal can be mainly attributed to the indirect oxidation ef fect of NaCl in elect rolysis process.In practical pharmaceutical wastew ater t reatment, the results indicate that the use of NaCl can achieve higher COD_Cr removal.In addition, the existence of ammonium will result in a decreased COD_Cr removal efficiency.

Key words： electrolysis; pharmaceutical wastewater; indirect oxidation; NaCl; ammonium

Cite this article

ZHANG Yuefeng, JIN Yizhong, XU Hao . Study on anode indirect oxidation in electrolysis treatment of pharmaceutical wastewater[J]. Industrial Water Treatment, 2002 , 22(11) : 22 -24 . DOI: 10.11894/1005-829x.2002.22(11).22

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