Electrooxidative degradation of wastewater from the ocean's recover petroleum terminal station

LI Haitao, ZHU Qijia, ZU Rong

doi:10.11894/1005-829x.2002.22(6).23

Industrial Water Treatment >

2002 , Vol. 22 >Issue 6: 23 - 25,39

DOI: https://doi.org/10.11894/1005-829x.2002.22(6).23

Electrooxidative degradation of wastewater from the ocean's recover petroleum terminal station

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1. Guangzhou Research Institute of Non-ferrous Metals, Guangzhou 510651, China;
2. The Ocean Petroleum West Co. Ltd. of South China, Zhanjiang 524057, China;
3. Zhenhai Oil Field Chemistry Company CONHW, Zhanjiang 524057, China

Received date: 2001-09-13

Online published: 2010-10-01

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Abstract

There is benzene derivation and multiring aromatic hydrocarbon with NaCl in the wastewater which comes from the ocean's recover petroleum terminal station. It is very difficult to lower its COD (Chemical Oxygen Demand) value down to national regular limitation (Grade 1: 100 mg/L) with biochemical degradation method. The COD of this wastewater can be reduced to less than 100 mg/L by electrochemical oxidizing degradation. It uses titanium substrate coated by Ru, Ir, Mn, Sn, Ti multiple oxides as anodes and Ti as the cathodes in undivided electrolysis cells. The electrochemical oxidation index is 0. 228, the electrochemical oxygen demand is 1. 794 g/g(Organic), and the degree of electrochemical oxidation is 75. 3%. After the electrochemical oxidation of wastewater, by the synergistic effect of NaClO with the residual organics in bulk, the COD of wastewater can be reduced to the limit of inspection.

Key words： electrochemical oxidation; wastewater treatment; Ti anode

Cite this article

LI Haitao, ZHU Qijia, ZU Rong . Electrooxidative degradation of wastewater from the ocean's recover petroleum terminal station[J]. Industrial Water Treatment, 2002 , 22(6) : 23 -25,39 . DOI: 10.11894/1005-829x.2002.22(6).23

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