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铁碳微电解强化煤制气废水酚类物质去除效能

麻微微,  施雪卿,  孔巧平,  于童,  韩洪军

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文章导航 > 环境工程  > 2022 >  40(7): 18-24
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引用本文: 麻微微, 施雪卿, 孔巧平, 于童, 韩洪军. 铁碳微电解强化煤制气废水酚类物质去除效能[J]. 环境工程, 2022, 40(7): 18-24. doi: DOI:10.13205/j.hjgc.202207003
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Citation: MA Weiwei, SHI Xueqing, KONG Qiaoping, YU Tong, HAN Hongjun. ENHANCED REMOVAL OF PHENOLIC COMPOUNDS IN COAL GASIFICATION WASTEWATER BY IRON-CARBON MICROELECTROLYSIS PROCESS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(7): 18-24. doi: DOI:10.13205/j.hjgc.202207003
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铁碳微电解强化煤制气废水酚类物质去除效能

doi: DOI:10.13205/j.hjgc.202207003

  • 1. 青岛理工大学 环境与市政工程学院, 山东 青岛 266033;

  • 2. 哈尔滨工业大学 环境学院, 哈尔滨 150090

基金项目: 

山东省泰山学者工程(tsqn201812091)

详细信息
    作者简介:

    麻微微(1990-),女,副教授,主要研究方向为工业废水生物处理以及废水生物毒性评价。maweiweihit@163.com

    通讯作者:

    施雪卿(1985-),男,教授,主要研究方向为工业废水难降解有机污染物生物强化处理。shixq85@163.com

ENHANCED REMOVAL OF PHENOLIC COMPOUNDS IN COAL GASIFICATION WASTEWATER BY IRON-CARBON MICROELECTROLYSIS PROCESS

  • 1. School of Environmental and Municipal Engineering, Qingdao University of Technology, Qingdao 266033, China;

  • 2. School of Environment, Harbin Institute of Technology, Harbin 150090, China

摘要

    摘要
  • 摘要: 探讨了铁碳微电解(ICME)技术对煤制气废水(CGW)中酚类污染物的去除效果,以及对废水可生化性能的改善效果。结果表明:与单一活性炭和单质铁相比,铁碳复合(Fe/C)填料具有较高的铁碳比、更丰富的孔隙结构以及更高的微电解反应活性。单因素分析表明,在煤制气废水处理中,低溶解氧(DO)和酸性条件更有利于微电解的作用过程,而Fe/C填料投加量过高或过低均不利于微电解反应。由响应曲面分析获得ICME处理煤制气废水酚类物质的最佳反应条件为:pH为6.50,Fe/C填料投加量为62.22 g/L,ρ(DO)为0.47 mg/L。在此最佳条件下,COD和总酚去除率分别达到80.98%和75.03%,BOD5/COD值由0.21提高到0.36。结果表明,ICME在强化煤制气废水酚类污染物去除方面发挥重要作用,可为后续生化处理工艺提供良好的水质条件。
    Abstract: In this study,the removal efficiency of phenolic compounds in coal gasification wastewater (CGW) and biodegradability were investigated by iron-carbon microelectrolysis (ICME) treatment.The results indicated that the iron-carbon composite (Fe/C) filler had a high iron and carbon ratio and rich pore structure,thereby performed higher reactivity.The single factor analysis showed that low dissolved oxygen (DO) and acidic condition were more favorable to microelectrolysis reaction in CGW treatment.However,it was not conducive to ICME reaction when the Fe/C filler content was too high or too low.The response surface method suggested that the optimum condition of the ICME process for phenolic compounds removal was the pH of 6.50,Fe/C filler content of 62.22 g/L,DO concentration of 0.47 mg/L.Based on the optimum condition,the removal efficiency of COD and total phenol reached 80.98% and 75.03%,respectively.The BOD5/COD value of CGW was increased from 0.21 to 0.36.The above results demonstrated that ICME played an important role in strengthening the removal of phenolic compounds in CGW,which provided better water quality for subsequent biochemical treatment.
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  • 收稿日期:  2021-01-23
  • 网络出版日期:  2022-09-02

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