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首页> 外文期刊>Fresenius Environmental Bulletin >EFFECT OF SALINITY ON EXTRACELLULAR POLYMERIC SUBSTANCES (EPS) AND SOLUBLE MICROBIAL PRODUCTS (SMP) IN ANAEROBIC SLUDGE SYSTEMSEFFECT OF SALINITY ON EXTRACELLULAR POLY-MERIC SUBSTANCES (EPS) AND SOLUBLE MICROBIAL PRODUCTS (SMP)IN ANAEROBIC SLUDGE SYSTEMS
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EFFECT OF SALINITY ON EXTRACELLULAR POLYMERIC SUBSTANCES (EPS) AND SOLUBLE MICROBIAL PRODUCTS (SMP) IN ANAEROBIC SLUDGE SYSTEMSEFFECT OF SALINITY ON EXTRACELLULAR POLY-MERIC SUBSTANCES (EPS) AND SOLUBLE MICROBIAL PRODUCTS (SMP)IN ANAEROBIC SLUDGE SYSTEMS

机译：盐度对厌氧污泥系统中胞外聚合物和可溶性微生物产物的影响盐度对厌氧污泥中细胞外聚合物和可溶性微生物产物的影响

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摘要

This paper investigated the effect of salinity on EPS, SMP in an anaerobic sludge system, and compared the effects of different salts (NaCl, KCl, CaCl_2 and MgCl_2) on EPS and SMP at salt shocking conditions (0 to 30 g L~(-1)). Results indicate that high salinity greatly affects EPS and SMP production. EPS accumulation suggested a protective response by bacteria. However, enough high salinity would make microorganisms loose their ability to produce EPS. There were no significant changes in SMP production at salt (NaCl, KCl, CaCl_2 and MgCl_2) concentrations below 5 g L~(-1), while SMP accumulation was observed at salt concentrations above 5 g L~(-1). The carbohydrates played a more crucial role in both EPS and SMP production than the proteins in resisting the salt shocking in the anaerobic sludge system. A significant correlation was observed between the SMP concentration and the specific COD degradation rate for different salts.
机译：本文研究了盐度对厌氧污泥系统中EPS，SMP的影响，并比较了在盐冲击条件下（0至30 g L〜（-），不同盐（NaCl，KCl，CaCl_2和MgCl_2）对EPS和SMP的影响。 1））。结果表明，高盐度极大地影响EPS和SMP的产生。 EPS积累表明细菌有保护作用。但是，足够高的盐度会使微生物失去产生EPS的能力。盐（NaCl，KCl，CaCl_2和MgCl_2）浓度低于5 g L〜（-1）时，SMP的产生没有显着变化，而盐浓度高于5 g L〜（-1）则观察到SMP的积累。与蛋白质相比，碳水化合物在抵抗厌氧污泥系统中的盐分冲击方面，在EPS和SMP的生产中起着至关重要的作用。观察到不同盐的SMP浓度与特定COD降解速率之间存在显着相关性。

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  • 来源
    《Fresenius Environmental Bulletin》 |2009年第8期|1456-1461|共6页
  • 作者

    Xiaoling Zou; Ke Xu; Lili Ding; Hongqiang Ren;

  • 作者单位

    State Key Laboratory of Pollution Control and Resource Reuse. School of the Environment. Nanjing University, 210093. Nanjing. P. R. China;

    State Key Laboratory of Pollution Control and Resource Reuse. School of the Environment. Nanjing University, 210093. Nanjing. P. R. China;

    State Key Laboratory of Pollution Control and Resource Reuse. School of the Environment. Nanjing University, 210093. Nanjing. P. R. China;

    State Key Laboratory of Pollution Control and Resource Reuse. School of the Environment. Nanjing University, 210093. Nanjing. P. R. China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    salinity; anaerobic sludge; EPS; SMP; COD;

    机译：盐度;厌氧污泥每股收益;SMP;化学需氧量;

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