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首页> 外文期刊>Journal of Environmental Science and Health >Electrochemical treatment of tannery wastewaterRaw, coagulated, and pretreated by AOPs
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Electrochemical treatment of tannery wastewaterRaw, coagulated, and pretreated by AOPs

机译：制革废水的电化学处理生化，凝结和AOP预处理

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摘要

This study on tannery wastewater treatment showed that indirect electrooxidation by chlorine generated at a Ti/SnO2/PdO2/RuO2 (SPR) anode led to full ammonia removal, and a decrease in chemical oxygen demand (COD) of up to 77.0%. A combined process of coagulation + H2O2/UV + electrooxidation allowed us to achieve a decrease in COD of up to 97.5%. Equations describing the kinetics of the decrease in COD, the relationship between the decrease in COD and current, and the relationship between the current efficiency of COD reduction and the initial concentrations of the reagents were established. The changes in the Adsorbable Organically Bound Halogen (AOX) value were determined, and the individual compounds, including chloroorganics, present in raw and treated wastewater were identified by gas chromatography mass spectrometry (GC-MS). Values of AOX increased in the initial phase of electrooxidation, while afterwards they decreased.
机译：这项关于制革废水处理的研究表明，Ti / SnO2 / PdO2 / RuO2（SPR）阳极产生的氯气引起的间接电氧化可完全去除氨，化学需氧量（COD）降低高达77.0％。混凝+ H2O2 / UV +电氧化的组合过程使我们能够将COD降低多达97.5％。建立了描述COD降低动力学，COD降低与电流之间的关系以及COD还原的当前效率与试剂初始浓度之间关系的方程。确定了可吸附有机结合卤素（AOX）值的变化，并通过气相色谱质谱（GC-MS）鉴定了原始和处理后废水中存在的单个化合物，包括氯有机物。在电氧化的初始阶段，AOX的值增加，然后降低。

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