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对氯苯酚废水处理引起的活性污泥有机毒性

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赵骏, 赵建国, 陈秀荣, 鲍征, 何怡萱. 对氯苯酚废水处理引起的活性污泥有机毒性[J]. 环境工程学报, 2016, 10(5): 2252-2258. doi: 10.12030/j.cjee.201412217
引用本文: 赵骏, 赵建国, 陈秀荣, 鲍征, 何怡萱. 对氯苯酚废水处理引起的活性污泥有机毒性[J]. 环境工程学报, 2016, 10(5): 2252-2258. doi: 10.12030/j.cjee.201412217
shu
Zhao Jun, Zhao Jianguo, Chen Xiurong, Bao Zheng, He Yixuan. Organic toxicity of sludge caused by treating p-chlorophenol wastewater[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2252-2258. doi: 10.12030/j.cjee.201412217
Citation: Zhao Jun, Zhao Jianguo, Chen Xiurong, Bao Zheng, He Yixuan. Organic toxicity of sludge caused by treating p-chlorophenol wastewater[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2252-2258. doi: 10.12030/j.cjee.201412217
shu

对氯苯酚废水处理引起的活性污泥有机毒性

  • 1.

    华东理工大学资源与环境工程学院, 上海 200237

  • 基金项目:

    国家自然科学基金资助项目(51378207)

    上海市浦江人才计划资助项目(13PJD009)

    国家水体污染控制与治理科技重大专项(2014ZX07202-011-002)

  • 中图分类号: X703

Organic toxicity of sludge caused by treating p-chlorophenol wastewater

  • 1.

    College of Resource and Environment Engineering, East China University of Science and Technology, Shanghai 200237, China

  • Fund Project:

摘要

  • 摘要: 以处理难降解有机污染物对氯苯酚(4-CP)模拟废水的序批式好氧活性污泥系统为研究对象,探讨活性污泥在降解4-CP的过程中污泥有机毒性的形成与空间分布规律,以及污泥有机毒性随时间的变化趋势。处理组污泥用10 mg/L的4-CP模拟废水进行驯化。控制SBR系统的水力停留时间(HRT)和污泥停留时间(SRT)分别为12 h和20 d。结果表明,随着驯化时间的延长,处理组污泥毒性先升高后降低,最终达到稳定状态。在整个运行过程中,处理组污泥毒性始终高于对照组。4-CP的吸附与降解实验表明,污泥外层胞外聚集物(EPS)主要起吸附4-CP且向内层传递的作用,污泥有机毒性主要是由4-CP的降解过程引起,少部分由污染物吸附所致。
    Abstract: The formation of sludge organic toxicity and its spatial distribution were investigated via an aerobic activated sludge system treating synthetic wastewater containing toxic and refractory p-chlorophenol (4-CP). Control sludge was acclimated using 10 mg/L 4-CP. The hydraulic retention time (HRT) and sludge retention time (SRT) were controlled at 12 h and 20 d, respectively, in a sequencing batch reactor (SBR). The results showed that the sludge toxicity of the control group first increased and then decreased to a steady state with operation time. The sludge toxicity of the control group was always higher than the blank group. The 4-CP adsorption and biodegradation tests showed that outer extracellular polymeric substances (EPS) absorbed 4-CP, which was transferred inside, and the sludge toxicity mainly resulted in the process of 4-CP biodegradation.
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出版历程
  • 收稿日期:  2015-01-28
  • 刊出日期:  2016-06-03
赵骏, 赵建国, 陈秀荣, 鲍征, 何怡萱. 对氯苯酚废水处理引起的活性污泥有机毒性[J]. 环境工程学报, 2016, 10(5): 2252-2258. doi: 10.12030/j.cjee.201412217
引用本文: 赵骏, 赵建国, 陈秀荣, 鲍征, 何怡萱. 对氯苯酚废水处理引起的活性污泥有机毒性[J]. 环境工程学报, 2016, 10(5): 2252-2258. doi: 10.12030/j.cjee.201412217
shu
Zhao Jun, Zhao Jianguo, Chen Xiurong, Bao Zheng, He Yixuan. Organic toxicity of sludge caused by treating p-chlorophenol wastewater[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2252-2258. doi: 10.12030/j.cjee.201412217
Citation: Zhao Jun, Zhao Jianguo, Chen Xiurong, Bao Zheng, He Yixuan. Organic toxicity of sludge caused by treating p-chlorophenol wastewater[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2252-2258. doi: 10.12030/j.cjee.201412217
shu

对氯苯酚废水处理引起的活性污泥有机毒性

  • 1. 华东理工大学资源与环境工程学院, 上海 200237
  • 收稿日期:  2015-01-28
基金项目:

国家自然科学基金资助项目(51378207)

上海市浦江人才计划资助项目(13PJD009)

国家水体污染控制与治理科技重大专项(2014ZX07202-011-002)

摘要: 以处理难降解有机污染物对氯苯酚(4-CP)模拟废水的序批式好氧活性污泥系统为研究对象,探讨活性污泥在降解4-CP的过程中污泥有机毒性的形成与空间分布规律,以及污泥有机毒性随时间的变化趋势。处理组污泥用10 mg/L的4-CP模拟废水进行驯化。控制SBR系统的水力停留时间(HRT)和污泥停留时间(SRT)分别为12 h和20 d。结果表明,随着驯化时间的延长,处理组污泥毒性先升高后降低,最终达到稳定状态。在整个运行过程中,处理组污泥毒性始终高于对照组。4-CP的吸附与降解实验表明,污泥外层胞外聚集物(EPS)主要起吸附4-CP且向内层传递的作用,污泥有机毒性主要是由4-CP的降解过程引起,少部分由污染物吸附所致。

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