THE MEMBRANE BIOFILM REACTOR IS A VERSA TILE PLATFORM FOR WATER AND WASTEWATER TREATMENT
THE MEMBRANE BIOFILM REACTOR IS A VERSA TILE PLATFORM FOR WATER AND WASTEWATER TREATMENT
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DOI：
10.4491/eer.2007.12.4.157
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发表时间：
2007-10
影响因子：
3.5
通讯作者：
B. Rittmann
中科院分区：
文献类型：
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作者：
B. Rittmann
膜生物膜反应器（MBfR）创造了膜和生物膜的天然伙伴关系，因为气体转移膜将气态基质输送到生长在膜外壁上的生物膜。基于MBR的MBfR（称为膜曝气生物膜反应器或MABR）存在的时间比基于MBR的MBfR长得多，但基于MBR的MBfR是用于在许多水处理环境中减少氧化污染物的通用平台：饮用水、地下水、废水和农业排水。广泛的实验室规模实验已经证明，基于H2O的MBfR可以将许多氧化的污染物还原为无害或容易去除的形式：例如，NO2-转化为N2，ClO 2-转化为H2O和Cl-，SeO 2-转化为Se 0，三氯乙烯（TCE）转化为乙烯和Cl-。MBfR已经在中试规模上测试了NO-和ClO-，现在正在进入现场测试，用于许多单独或混合的氧化污染物。MBfR实现其充分的承诺，几个问题必须解决的实验室和现场研究：了解氧化污染物的混合物的相互作用，处理高TDS浓度的沃茨，开发模块，可用于现场增加废水的预脱氮，并保持低的资本成本。
The membrane biofilm reactor (MBfR) creates a natural partnership of a membrane and biofilm, because a gas-transfer membrane delivers a gaseous substrate to the biofilm that grows on the membrane`s outer wall. O₂-based MBfRs (called membrane aerated biofilm reactors, or MABRs) have existed for much longer than H₂-based MBfRs, but the H₂-based MBfR is a versatile platform for reducing oxidized contaminants in many water-treatment settings: drinking water, ground water, wastewater, and agricultural drainage. Extensive bench-scale experimentation has proven that the H₂-based MBfR can reduce many oxidized contaminant to harmless or easily removed forms: e.g., NO₃- to N2, ClO₄- to H₂O and Cl-, SeO₄2- to Se°, and trichloroethene (TCE) to ethene and Cl-. The MBfR has been tested at the pilot scale for NO₃- and ClO₄- and is now entering field-testing for many of the oxidized contaminants alone or in mixtures. For the MBfR to attain its full promise, several issues must be addressed by bench and field research: understanding interactions with mixtures of oxidized contaminants, treating waters with a high TDS concentration, developing modules that can be used in situ to augment pre-denitrification of wastewater, and keeping the capital costs low.