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首页> 外文期刊>Bioprocess and Biosystems Engineering >The role of stress agents as operating factors in formation and functioning of granular aerobic activated sludge at model domestic wastewater treatment
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The role of stress agents as operating factors in formation and functioning of granular aerobic activated sludge at model domestic wastewater treatment

机译：示范性生活污水处理中应力剂作为操作因素在颗粒好氧活性污泥的形成和功能中的作用

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摘要

Maintenance of the wastewater treatment plants and increasing the efficiency of existing aerobic biological reactors depend on the stability of activated sludge characteristics under varying wastewater parameters within significant limits and/or influence of some environmental factors. The steady microbial communities observed in biofilms and anaerobic granules of activated sludge can serve as successful samples of formation of the similar aerobic systems. The granular aerobic sludge obtained in the course of our researches is an ideal "plant" on treatment of biogenic pollution at both low and high concentrations. It demonstrates high ability for treatment and stability to adverse factors. To improve aerobic wastewater treatment characteristics, a possibility of using impact of stress conditions upon activated sludge has been studied. Under conditions of fractional hydrogen peroxide addition at diffused lighting, the granular aerobic activated sludge adapted to hydrogen peroxide has been obtained. This sludge has got good sedimentary properties and it differs from the control sample in the species diversity, improved treatment characteristics and also resistance to the stressor. It also endures an impact of one-time hydrogen peroxide addition up to 1.2-1.5 g H_2O_2/l. The conditions under which the steady aerobic granules of the diameter from 2 to 5 mm were formed with high treatment ability have been chosen. The granules were being stabilized at passages with hydrogen peroxide treatment and they endured up to 2.4-3.0 g/l of one-time H_2O_2 addition.
机译：废水处理厂的维护和现有需氧生物反应器的效率提高取决于在显着限制和/或某些环境因素影响下变化的废水参数下活性污泥特性的稳定性。在生物膜和活性污泥厌氧颗粒中观察到的稳定微生物群落可作为成功的类似需氧系统形成的样本。在我们的研究过程中获得的颗粒好氧污泥是处理低浓度和高浓度生物污染的理想“植物”。它显示出很高的治疗能力和对不利因素的稳定性。为了改善好氧废水的处理特性，已经研究了利用应力条件对活性污泥的影响的可能性。在漫射照明下添加过氧化氢的条件下，获得了适合过氧化氢的颗粒好氧活性污泥。该污泥具有良好的沉积特性，与对照样品的不同之处在于物种多样性，改善的处理特性以及对压力源的抵抗力。它还可以承受一次性过氧化氢添加量高达1.2-1.5 g H_2O_2 / l的影响。选择形成具有高处理能力的直径为2至5mm的稳定的需氧颗粒的条件。颗粒通过过氧化氢处理稳定在通道中，并且它们一次加入H_2O_2的耐受量高达2.4-3.0 g / l。

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  • 来源
    《Bioprocess and Biosystems Engineering》 |2014年第9期|1771-1779|共9页
  • 作者

    Nikolay S. Khokhlachev; Sergei V. Kalenov; Olga S. Zanina; Dmitry V. Tyupa; Marina M. Baurina; Alexander Ye. Kuznetsov;

  • 作者单位

    Faculty of Biotechnology and Industrial Ecology, D.I. Mendeleyev University of Chemical Technology of Russia, 9 Miusskaya square, Moscow 125047, Russia;

    Faculty of Biotechnology and Industrial Ecology, D.I. Mendeleyev University of Chemical Technology of Russia, 9 Miusskaya square, Moscow 125047, Russia;

    Faculty of Biotechnology and Industrial Ecology, D.I. Mendeleyev University of Chemical Technology of Russia, 9 Miusskaya square, Moscow 125047, Russia;

    Faculty of Biotechnology and Industrial Ecology, D.I. Mendeleyev University of Chemical Technology of Russia, 9 Miusskaya square, Moscow 125047, Russia;

    Faculty of Biotechnology and Industrial Ecology, D.I. Mendeleyev University of Chemical Technology of Russia, 9 Miusskaya square, Moscow 125047, Russia;

    Faculty of Biotechnology and Industrial Ecology, D.I. Mendeleyev University of Chemical Technology of Russia, 9 Miusskaya square, Moscow 125047, Russia;

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  • 正文语种 eng
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  • 关键词

    Activated sludge; Aerobic granulation Oxidative stress; Biological wastewater treatment; Granular aerobic activated sludge;

    机译：活性污泥;好氧造粒氧化应激;生物废水处理;颗粒好氧活性污泥;

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