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改性花生壳活性炭吸附-催化臭氧氧化处理反渗透浓水

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张华, 唐卫军, 吴百春, 张晓飞, 刘光全. 改性花生壳活性炭吸附-催化臭氧氧化处理反渗透浓水[J]. 环境工程学报, 2016, 10(10): 5637-5642. doi: 10.12030/j.cjee.201505162
引用本文: 张华, 唐卫军, 吴百春, 张晓飞, 刘光全. 改性花生壳活性炭吸附-催化臭氧氧化处理反渗透浓水[J]. 环境工程学报, 2016, 10(10): 5637-5642. doi: 10.12030/j.cjee.201505162
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ZHANG Hua, TANG Weijun, WU Baichun, ZHANG Xiaofei, LIU Guangquan. Adsorption-catalytic ozonation of RO concentrate in presence of modified peanut activated carbon[J]. Chinese Journal of Environmental Engineering, 2016, 10(10): 5637-5642. doi: 10.12030/j.cjee.201505162
Citation: ZHANG Hua, TANG Weijun, WU Baichun, ZHANG Xiaofei, LIU Guangquan. Adsorption-catalytic ozonation of RO concentrate in presence of modified peanut activated carbon[J]. Chinese Journal of Environmental Engineering, 2016, 10(10): 5637-5642. doi: 10.12030/j.cjee.201505162
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改性花生壳活性炭吸附-催化臭氧氧化处理反渗透浓水

  • 1.

    中国石油集团安全环保技术研究院环保技术研究所, 北京 102206

  • 2.

    北京首钢国际工程技术有限公司, 北京 100043

  • 基金项目:

  • 中图分类号: X703.1

Adsorption-catalytic ozonation of RO concentrate in presence of modified peanut activated carbon

  • 1.

    CNPC Research Institute of Safety & Environmental Technology, Beijing 102206, China

  • 2.

    Beijing Shougang International Engineering Technology Co. Ltd., Beijing 100043, China

  • Fund Project:

  • 摘要: 考察了改性活性炭吸附-催化臭氧氧化对炼化RO浓水中有机污染物的降解效果。结果表明，花生壳经H3PO4活化后具有较好的比表面积及孔径结构，再经Cu2+、Mn2+、Fe3+溶液负载改性，得到花生壳活性炭催化剂，其中Cu2+改性后的活性炭具有最大的比表面积。将不同的改性活性炭与臭氧组合处理RO浓水，COD去除率显著提高，表现为Cu-AC≥Mn-AC > Fe-AC > H3PO4-AC，偏碱性条件和提高活性炭投加量均利于活性炭吸附-催化臭氧氧化反应，且在30 min后COD去除率趋于平稳。当利用金属离子负载改性活性炭时，臭氧消耗率显著提高。其中，Cu-AC和Mn-AC吸附-催化臭氧氧化时臭氧的消耗率较高，COD去除率≥80%，出水COD-1，达到国家一级排放标准。
    Abstract: The degradation of organic matter in RO concentrate by adsorption-catalytic ozonation was investigated in the presence of modified peanut activated carbon.The activated carbon was initially made from peanuts modified by H3PO4,followed by mixing,modifying,and loading with Cu2+,Mn2+,and Fe3+ solutions.The metal-ion loaded activated carbon showed high specific surface area and total pore volume,in particular the activated carbon modified by Cu2+.As the modified activated carbon was used in the ozonation of the RO concentrate,the COD removal was enhanced significantly,which indicated Cu-AC≥Mn-AC > Fe-AC > H3PO4-AC.In addition,the COD removal efficiency of the combined ozonation and activated carbon adsorption was increased for basic samples with a high activated carbon dosage.As the reaction time went beyond 30 min,the COD removal increased slightly.Furthermore,the presence of metal-ion-loaded activated carbon significantly increased the ozone consumption.Among the three kinds of modified activated carbon,Cu-AC and Mn-AC consumed more ozone and had higher COD removal efficiencies of above 80%,which caused the below 60 mg·L-1 effluent COD to meet the national discharge standard.
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  • 收稿日期:  2015-07-27
  • 刊出日期:  2016-10-20

改性花生壳活性炭吸附-催化臭氧氧化处理反渗透浓水

  • 1. 中国石油集团安全环保技术研究院环保技术研究所, 北京 102206
  • 2. 北京首钢国际工程技术有限公司, 北京 100043
  • 收稿日期:  2015-07-27
基金项目:

摘要: 考察了改性活性炭吸附-催化臭氧氧化对炼化RO浓水中有机污染物的降解效果。结果表明，花生壳经H3PO4活化后具有较好的比表面积及孔径结构，再经Cu2+、Mn2+、Fe3+溶液负载改性，得到花生壳活性炭催化剂，其中Cu2+改性后的活性炭具有最大的比表面积。将不同的改性活性炭与臭氧组合处理RO浓水，COD去除率显著提高，表现为Cu-AC≥Mn-AC > Fe-AC > H3PO4-AC，偏碱性条件和提高活性炭投加量均利于活性炭吸附-催化臭氧氧化反应，且在30 min后COD去除率趋于平稳。当利用金属离子负载改性活性炭时，臭氧消耗率显著提高。其中，Cu-AC和Mn-AC吸附-催化臭氧氧化时臭氧的消耗率较高，COD去除率≥80%，出水COD-1，达到国家一级排放标准。

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