Effects of process parameters on the degradation of high salinity industrial wastewater

High salinity wastewater is characterized by high salt content, a large number of organic pollutants and difficulty in biochemical degradation, which has become a major problem in industrial wastewater treatment. In this article, the electrochemical oxidation technology was used to treat high salini...

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Published in:Water quality research journal 2021-02, Vol.56 (1), p.31-44
Main Authors: Li, Zhishen, Gao, Xiaolei, Miao, Dongtian, Yang, Wanlin, Xie, Yuanquan, Ma, Li, Wei, Qiuping
Format: Article
Language:English
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boron-doped diamond electrode
electrochemical oxidation
high salinity industrial wastewater
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cited_by cdi_FETCH-LOGICAL-c398t-c4b89401cb22cb0ce5ed224c73e011f66ae43d8055d8d39230d99c539427fba3
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container_start_page 31
container_title Water quality research journal
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creator Li, Zhishen
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description High salinity wastewater is characterized by high salt content, a large number of organic pollutants and difficulty in biochemical degradation, which has become a major problem in industrial wastewater treatment. In this article, the electrochemical oxidation technology was used to treat high salinity wastewater. The effects of temperature, current density, pH and additives on the removal effect of high salinity wastewater were investigated to optimize the process parameters. The results show that the best degradation effect is when the current density is 21.43 mA cm−2, pH = 2, the temperature is 60 °C, and electric field activates additional persulfate. After purification of high salt wastewater, the evaporated salt can be utilized as a resource. The industrial cost of degradation was estimated, and its economic benefits were calculated. This work will provide a theoretical and experimental basis for treating high salt wastewater by boron-doped diamond (BDD) electrochemical degradation technology.
doi_str_mv 10.2166/wqrj.2021.035
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subjects boron-doped diamond electrode
electrochemical oxidation
high salinity industrial wastewater
title Effects of process parameters on the degradation of high salinity industrial wastewater
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