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酸化破乳-萃取-蒸氨预处理用于催化湿式过氧化氢氧化处理煤气化废水

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赵颖, 孙承林, 王亚旻, 卫皇曌, 韩劲, 于永辉, 于杨. 酸化破乳-萃取-蒸氨预处理用于催化湿式过氧化氢氧化处理煤气化废水[J]. 环境工程学报, 2017, 11(9): 5049-5056. doi: 10.12030/j.cjee.201611028
引用本文: 赵颖, 孙承林, 王亚旻, 卫皇曌, 韩劲, 于永辉, 于杨. 酸化破乳-萃取-蒸氨预处理用于催化湿式过氧化氢氧化处理煤气化废水[J]. 环境工程学报, 2017, 11(9): 5049-5056. doi: 10.12030/j.cjee.201611028
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ZHAO Ying, SUN Chenglin, WANG Yamin, WEI Huangzhao, HAN Jin, YU Yonghui, YU Yang. Acidification demulsion-extraction-steamed ammonia pretreatment for catalytic wet peroxide oxidation of coal gasification wastewater treatment[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5049-5056. doi: 10.12030/j.cjee.201611028
Citation: ZHAO Ying, SUN Chenglin, WANG Yamin, WEI Huangzhao, HAN Jin, YU Yonghui, YU Yang. Acidification demulsion-extraction-steamed ammonia pretreatment for catalytic wet peroxide oxidation of coal gasification wastewater treatment[J]. Chinese Journal of Environmental Engineering, 2017, 11(9): 5049-5056. doi: 10.12030/j.cjee.201611028
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酸化破乳-萃取-蒸氨预处理用于催化湿式过氧化氢氧化处理煤气化废水

  • 1.

    中国科学院大连化学物理研究所, 大连 116023

  • 2.

    中国科学院大学, 北京 100049

  • 3.

    辽宁工程技术大学环境科学与工程学院, 阜新 123000

  • 基金项目:

  • 中图分类号: X703

Acidification demulsion-extraction-steamed ammonia pretreatment for catalytic wet peroxide oxidation of coal gasification wastewater treatment

  • 1.

    Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China

  • 2.

    University of Chinese Academy of Sciences, Beijing 100049, China

  • 3.

    Institute of Environmental Science and Engineering, Liaoning Technical University, Fuxin 123000, China

  • Fund Project:

  • 摘要: 调酸-萃取-蒸氨工序预处理煤气化废水温度达87~95℃，联合高温催化湿式过氧化氢氧化（catalitic wet peroxide oxidation，CWPO）处理煤气化废水，可显著提高废水可生化性。比较了3% Fe/椰壳炭、3% Fe/Al2O3在CWPO过程中的催化性能。实验结果表明，在反应条件为80℃、pH0为4、H2O2加入量为7.8~10.5 mg·L-1、空速（LHSV）为0.5 h-1时，3% Fe/椰壳炭对预处理煤气化出水COD去除率高达60%，对总酚的去除率高达90%以上，H2O2利用率大于99%，色度由初始1 000倍降至2倍，此外，出水B/C为0.51，达到进入生化处理系统的水质要求。
    Abstract: A method of high temperature CWPO with a combination pretreatment process of acidification demulsion, extraction and steamed ammonia whose effluent presented its temperature as high as 87 to 95℃ was investigated to improve the biodegradability of coal gasification wastewater. Compared 3%Fe/Al2O3 and 3%Fe/SAC, over 60% of COD and 90% of the total phenol could be removed under the optimized condition(temperature of 80℃, pH0 of 4,H2O2 of 7.8 to 10.5 mg·L-1, LHSV of 0.5 h-1) with 3%Fe/SAC for the pretreatment of coal gasification effluent. COD removal rate as high as 60%, the total phenol removal rate as high as 90% above, the H2O2 utilization rate was more than 99% and chromaticity by initial 1 000 times down to 2 times, in addition, the effluent could reach the requirements of water quality standard for biochemical treatment system due to its high biodegradability as B/C=0.51.
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  • 收稿日期:  2016-12-31
  • 刊出日期:  2017-08-26

酸化破乳-萃取-蒸氨预处理用于催化湿式过氧化氢氧化处理煤气化废水

  • 1.  中国科学院大连化学物理研究所, 大连 116023
  • 2.  中国科学院大学, 北京 100049
  • 3.  辽宁工程技术大学环境科学与工程学院, 阜新 123000
  • 收稿日期:  2016-12-31
基金项目:

摘要: 调酸-萃取-蒸氨工序预处理煤气化废水温度达87~95℃，联合高温催化湿式过氧化氢氧化（catalitic wet peroxide oxidation，CWPO）处理煤气化废水，可显著提高废水可生化性。比较了3% Fe/椰壳炭、3% Fe/Al2O3在CWPO过程中的催化性能。实验结果表明，在反应条件为80℃、pH0为4、H2O2加入量为7.8~10.5 mg·L-1、空速（LHSV）为0.5 h-1时，3% Fe/椰壳炭对预处理煤气化出水COD去除率高达60%，对总酚的去除率高达90%以上，H2O2利用率大于99%，色度由初始1 000倍降至2倍，此外，出水B/C为0.51，达到进入生化处理系统的水质要求。

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