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13C and 34S Isotope Evidence for Biodegradation of a Petroleum Hydrocarbon-Contaminated Aquifer in Northeast China
详细信息   
摘要
The stable isotope technique tracing the mechanism of petroleum hydrocarbon biodegradation is a newly developed and effective method in recent years. The variations of TPH, DIC and the dominant terminal electron accepters (SO42- and so on), δ13C and δ34S of DIC and SO4 2-have been analyzed on the basis of the geological and hydrogeological conditions of a petroleum hydrocarbon contaminated site. The results indicate that the groundwater was contaminated by petroleum hydrocarbons at various degrees and the values of electron accepters and pH increased along the groundwater flow in the central line of the plume while TPH and DIC reduced. The result of stable carbon isotope balance shows that the increase of DIC of gorundwater is mainly originated from biodegradation of petroleum hydrocarbon.

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