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长反应时间条件下乙醛废水碱解脱毒预处理效果

王红 张猛 朱泽敏 宋玉栋 李杰 肖举强 周岳溪

王红, 张猛, 朱泽敏, 宋玉栋, 李杰, 肖举强, 周岳溪. 长反应时间条件下乙醛废水碱解脱毒预处理效果[J]. 环境工程技术学报, 2020, 10(2): 260-266. doi: 10.12153/j.issn.1674-991X.20190130
引用本文: 王红, 张猛, 朱泽敏, 宋玉栋, 李杰, 肖举强, 周岳溪. 长反应时间条件下乙醛废水碱解脱毒预处理效果[J]. 环境工程技术学报, 2020, 10(2): 260-266. doi: 10.12153/j.issn.1674-991X.20190130
WANG Hong, ZHANG Meng, ZHU Zemin, SONG Yudong, LI Jie, XIAO Juqiang, ZHOU Yuexi. Alkaline detoxification pretreatment of acetaldehyde wastewater under the condition of long reaction time[J]. Journal of Environmental Engineering Technology, 2020, 10(2): 260-266. doi: 10.12153/j.issn.1674-991X.20190130
Citation: WANG Hong, ZHANG Meng, ZHU Zemin, SONG Yudong, LI Jie, XIAO Juqiang, ZHOU Yuexi. Alkaline detoxification pretreatment of acetaldehyde wastewater under the condition of long reaction time[J]. Journal of Environmental Engineering Technology, 2020, 10(2): 260-266. doi: 10.12153/j.issn.1674-991X.20190130

长反应时间条件下乙醛废水碱解脱毒预处理效果

doi: 10.12153/j.issn.1674-991X.20190130
详细信息
    作者简介:

    王红(1966—),女,讲师,主要从事水污染控制技术研究,1527765887@qq.com

    通讯作者:

    周岳溪 E-mail: zhouyuexi@263.net

  • 中图分类号: X592

Alkaline detoxification pretreatment of acetaldehyde wastewater under the condition of long reaction time

More Information
    Corresponding author: Yuexi ZHOU E-mail: zhouyuexi@263.net
  • 摘要: 乙醛废水含有高浓度醛类及有机氯类有毒有机物,对废水生物处理系统中的微生物抑制性强,直接生物处理难度较大,需进行脱毒预处理。考察了延长反应时间和提高反应温度对乙醛废水碱解脱毒所需碱(NaOH)投加量的影响。结果表明:碱解预处理可有效去除废水中的醛类和有机氯类有毒有机物,显著降低废水厌氧生物毒性和好氧生物毒性;以厌氧生物毒性作为脱毒评价指标较有毒物质浓度更为合理;延长反应时间、提高反应温度有利于降低乙醛废水充分脱毒所需碱的投加量;将反应时间由3 h延长至10 h,反应温度由60 ℃升至70 ℃,乙醛废水充分脱毒所需碱的投加量降低了50%,节省药剂成本约3.7元∕t(以废水计)。

     

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出版历程
  • 收稿日期:  2019-07-28
  • 刊出日期:  2020-03-20

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