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首页> 外文会议>International Water Association(IWA) Conference; 20050518-20; Xi'an(CN) >Innovations in wastewater treatment - the moving bed blofilm process
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Innovations in wastewater treatment - the moving bed blofilm process

机译：废水处理创新-移动床膨胀膜工艺

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The paper describes the moving bed biofilm reactor (MBBR) and presents applications of wastewater treatment processes in which this reactor is used. The MBBR processes have been extensively used for BOD/COD-removal as well as for nitrification and denitrification in municipal as well as industrial wastewater treatment. This paper focuses on the municipal applications. The most frequent process combinations are presented and discussed. Basic design data obtained through research as well as data from practical operation of various plants are presented. It is demonstrated that the MBBR may be used in an extremely compact high-rate process (< 1 h total HRT) for secondary treatment. Most European plants require P-removal and performance data from plants combining MBBR and chemical precipitation is presented. Likewise data from plants in Italy and Switzerland that are implementing nitrification in addition to secondary treatment are presented. The results from three Norwegian plants that are using the so-called combined denitrification MBBR process are discussed. Nitrification rates as high as 1.2 g NH4-N/m~2d at complete nitrification were demonstrated in practical operation at low temperatures (11℃ ), while denitrification rates were as high as 3.5 g NO_3-N_(equiv)./(m~2 • d). Depending on the extent of pre-treatment, the total HRT of the MBBR for N-removal will be in the range of 3-5 hrs.
机译：本文介绍了移动床生物膜反应器（MBBR），并介绍了使用该反应器的废水处理工艺的应用。 MBBR工艺已广泛用于市政/工业废水处理中BOD / COD的去除以及硝化和反硝化。本文重点介绍市政应用。介绍和讨论最常见的过程组合。介绍了通过研究获得的基本设计数据以及各种工厂的实际操作数据。结果表明，MBBR可以用于极其紧凑的高速率工艺（总HRT小于1小时）中进行二级处理。大多数欧洲工厂都要求去除磷，并提供了结合MBBR和化学沉淀的工厂性能数据。同样，还显示了来自意大利和瑞士的除二级处理外还进行硝化处理的工厂的数据。讨论了使用所谓的联合反硝化MBBR工艺的三个挪威工厂的结果。在低温（11℃）的实际操作中，完全硝化后的硝化率高达1.2 g NH4-N / m〜2d，而反硝化率高达3.5 g NO_3-N_（当量）./（m〜 2•d）。根据预处理的程度，用于除氮的MBBR的总HRT将在3-5小时的范围内。

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