Concurrent nitrate and Fe(III) reduction during anaerobic biodegradation of phenols in a sandstone aquifer

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• 作者：Broholm ; Mette M. ; Crouzet ; Catherine ; Arvin ; Erik ; Mouvet ; Christophe
• 关键词：Groundwater ; Solids ; Oxidation ; Reduction ; Iron ; Coal&ndash ; tar ; Gas-work
• 刊名：Journal of Contaminant Hydrology
• 出版年：2000
• 出版时间：August 1, 2000
• 年：2000
• 卷：44
• 期：3-4
• 页码：275-300
• 全文大小：261 K

文摘

The biodegradation of phenols (5, 60, 600 mg l⁻¹) under anaerobic conditions (nitrate enriched and unamended) was studied in laboratory microcosms with sandstone material and groundwater from within an anaerobic ammonium plume in an aquifer. The aqueous phase was sampled and analyzed for phenols and selected redox sensitive parameters on a regular basis. An experiment with sandstone material from specific depth intervals from a vertical profile across the ammonium plume was also conducted. The miniature microcosms used in this experiment were sacrificed for sampling for phenols and selected redox sensitive parameters at the end of the experiment. The sandstone material was characterized with respect to oxidation and reduction potential and Fe(II) and Fe(III) speciation prior to use for all microcosms and at the end of the experiments for selected microcosms.