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首页> 外文期刊>Journal of Chemical Technology & Biotechnology >Amicrobial fuel cell–electro-oxidation system for coking wastewater treatment and bioelectricity generation
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Amicrobial fuel cell–electro-oxidation system for coking wastewater treatment and bioelectricity generation

机译：用于焦化废水处理和生物发电的微生物燃料电池-电氧化系统

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BACKGROUND: Coking wastewater is generated from coal coking, coal gas purification, and by-product recovery processes. Increased interest is being focused on finding more sustainably effective and energy-efficient methods for treating this wastewater. In this work, a system termed microbial fuel cell-electro-oxidation (MFC-EO) was developed for simultaneous coking wastewater treatment and bioelectricity generation. RESULTS: Raw coking wastewater was first treated using MFCs. Power production, removal of total chemical oxygen demand (TCOD)andtotal nitrogen (TN) reached538±9mWm 2,52±1%and50±1%,respectively. Wastewater strength andphosphate addition were evaluated for the enhancement of power production and treatment efficiency. At the EO stage, the effect of current density and chloride concentration on pollutant abatement, current efficiency (CEEO) and energy consumption (ECEO) were investigated. The overall removal of TCOD and TN was 82 ± 1% and 68 ± 1%, respectively using theMFC-EO process. CONCLUSIONS: A MFC-EO process was developed for the first time for simultaneous bioelectricity generation and coking wastewater treatment. This study attempted to combine MFCs with a conventional EO process for coking wastewater treatment. Further strategies need to be investigated to optimize reactor configuration using low-cost and highly efficient electrodematerials.
机译：背景：炼焦废水是由炼焦，煤气净化和副产品回收过程产生的。越来越多的兴趣集中在寻找更可持续的有效和节能方法来处理这种废水。在这项工作中，开发了一种称为微生物燃料电池电氧化（MFC-EO）的系统，用于同时焦化废水处理和生物发电。结果：原始焦化废水首先使用MFCs处理。发电，去除总化学需氧量（TCOD）和总氮（TN）分别达到538±9mWm，2.52±1％和50±1％。对废水强度和磷酸盐添加量进行了评估，以提高发电量和处理效率。在EO阶段，研究了电流密度和氯化物浓度对污染物减排，电流效率（CEEO）和能耗（ECEO）的影响。使用MFC-EO工艺，TCOD和TN的总去除率分别为82±1％和68±1％。结论：首次开发了一种MFC-EO工艺，用于同时发电和焦化废水处理。这项研究试图将MFC与传统的EO工艺结合起来用于焦化废水处理。需要研究进一步的策略以使用低成本和高效电极材料来优化反应器配置。

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