Enhanced Natural Attenuation of MTBE

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• 作者：Mario Schirmer ; Marion Martienssen
• 关键词：Biodegradation ; Ground water ; Enhanced natural attenuation ; MTBE
• 刊名：The Handbook of Environmental Chemistry
• 出版年：2007
• 出版时间：2007
• 年：2007
• 卷：5Y
• 期：1
• 页码：139-158
• 全文大小：451 KB

文摘

MTBE contamination in groundwater is an increasing environmental problem and treatment costs using conventional remediation technologies will increase if water is contaminated by MTBE. Generally, natural attenuation (NA) and enhanced natural attenuation (ENA) are possible low-cost alternatives to conventional techniques. Since biodegradation of MTBE is comparably slow under field conditions and often limited by the environmental conditions, optimizing these conditions within the framework of an ENA approach can be a useful means to enhance the natural degradation process. One potential limitation of the ENA approach is that MTBE is mineralized by only a few specialized bacteria and mainly under aerobic conditions. Co-metabolic biotransformation of MTBE by aerobic, alkane-degrading bacteria has also been reported. Although several studies have demonstrated anaerobic biodegradation, anaerobic MTBE degradation rates are very low compared to aerobic rates.