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Inhibition effects of pentachlorophenol (PCP) on anaerobic digestion system

机译：五氯苯酚（PCP）对厌氧消化系统的抑制作用

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摘要

Pentachlorophenol (PCP), a kind of ionizable hydrophobic organic contaminant, had been extensively used in agricultural, industrial, and domestic applications as an important component of fungicides, bactericides, herbicides, insecticides, biocides, and wood preservatives, To investigate the effects of pentachlorophenol (PCP) on anaerobic digestion system, an experimental study was carried out in which simulated PCP-contaminated sewage water was treated using a batch reactor. The study revealed that the influences of PCP on acido-genic and methanogenic microorganisms. Affected by PCP, the fermentation type of system was transformed from butyric acid type to propionic acid rype.Moreover, biogas production rate and methane content were less. PCP inhibited the activity of methane bacteria significantly: during the series of PCP addition (PCP concentration was 0, 14.9, 19.1, and 29.5 mg/ L, respectively), the higher the PCP concentration was, the more serious the inhibition effect was. The removal rate of PCP was 94.6% when the PCP concentration was 14.9 mg/L, while it was only 54.8% when PCP concentration was raised to 29.5 mg/L. Acidogenic microorganism was more quickly adaptable for PCP than methanogenic microorganism.
机译：五氯苯酚（PCP）是一种可离子化的疏水性有机污染物，已作为杀真菌剂，杀菌剂，除草剂，杀虫剂，杀生物剂和木材防腐剂的重要成分广泛用于农业，工业和家庭应用中，以研究五氯苯酚的作用。 （PCP）在厌氧消化系统上进行了一项实验研究，其中使用分批反应器处理了被PCP污染的模拟污水。研究表明，五氯苯酚对产酸和产甲烷微生物具有影响。受PCP影响，系统的发酵类型由丁酸型转变为丙酸黑麦，而且沼气产生率和甲烷含量均较低。 PCP显着抑制甲烷细菌的活性：在一系列PCP添加过程中（PCP浓度分别为0、14.9、19.1和29.5 mg / L），PCP浓度越高，抑制作用越严重。当PCP浓度为14.9 mg / L时，PCP的去除率为94.6％，而当PCP浓度提高至29.5 mg / L时，PCP的去除率仅为54.8％。产酸微生物比产甲烷微生物对PCP的适应性更快。

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  • 来源
    《Desalination and water treatment》 |2013年第30期|5892-5897|共6页
  • 作者

    Jian-Liang Xue; Guang-Min Liu; Dong-Feng Zhao; Jin-Chun-Zi Li; Xu-Dong Su;

  • 作者单位

    College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Shandong, Qingdao 266555, P.R. China,Research Center of Environmental Engineering, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, P.R. China;

    Research Center of Environmental Engineering, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, P.R. China;

    College of Chemistry and Chemical Engineering, China University of Petroleum (East China), Shandong, Qingdao 266555, P.R. China;

    Research Center of Environmental Engineering, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, P.R. China;

    Research Center of Environmental Engineering, College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin, P.R. China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Pentachlorophenol; Inhibition; Anaerobic digestion system; Fermentation type; Microbial activity;

    机译：五氯苯酚;抑制;厌氧消化系统;发酵类型微生物活性;

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