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首页> 外文期刊>Remediation: The Journal of Environmental Cleanup Costs, Technologies & Techniques >Biofiltration of airstreams contaminated with MTBE
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Biofiltration of airstreams contaminated with MTBE

机译：被MTBE污染的气流的生物过滤

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摘要

The treatment of groundwater contaminated with low concentrations of methyl tertiary butyl ether (MTBE) is of nationwide concern. Many treatment techniques include removing MTBE vapors from groundwater resulting in air-streams that require treatment. One method used for air-phase MTBE treatment is bio filtration. In a bio filter the vapors pass through a reactor that contains MTBE-biodegrading organisms attached to a porous media. This article reports the results of a bio filtration study to treat air contaminated with MTBE at concentrations of 0.2 to 0.33 mg/l, concentrations frequently encountered in the field. The results indicate that MTBE removal at these low concentrations is not as efficient as removals seen at higher concentrations. Activated carbon was shown to be a superior bio filtration medium, compared with media that do not adsorb MTBE vapors. Activated carbon was especially helpful in treatment shock loads of MTBE.
机译：低浓度的甲基叔丁基醚（MTBE）污染的地下水的处理已引起全国关注。许多处理技术包括从地下水中去除MTBE蒸气，从而产生需要处理的气流。用于空气相MTBE处理的一种方法是生物过滤。在生物过滤器中，蒸气通过反应器，该反应器包含附着在多孔介质上的MTBE生物降解生物。本文报告了一项生物过滤研究的结果，该研究用于处理浓度为0.2至0.33 mg / l（在该领域中经常遇到的浓度）的MTBE污染的空气。结果表明，在这些低浓度下的MTBE去除效果不如在较高浓度下的MTBE去除效果高。与不吸附MTBE蒸气的介质相比，活性炭被证明是一种出色的生物过滤介质。活性炭对MTBE的冲击负荷特别有帮助。

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