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Natural attenuation study of the aquifer underlying the trecate 24 oilfield

机译：Trecate 24油田下含水层的自然衰减研究

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For about three years, evolution of the petroleum-contaminated groundwater in the area of Trecate in northern Italy has been monitored. The analyses and the physic-chemical measurements performed during this period have evidenced a correlation between dissolved or floating hydrocarbon compounds in the groundwater and the concentrations of certain electron acceptors. Changes in the Redox potential and in the concentration of dissolved oxygen are related to the concentration of hydrocarbons. Natural bioattenuation is quantified for each type of oxidizing compound or element studied. The results indicate that the quantities of hydrocarbons removed by degradation, in terms of benzene equivalents per day, are remarkably stable, with values comprised between 1.00 and 1.26 grams per cubic meter of groundwater per day. This article reports results obtained during the three first years of a study which is still in progress.
机译：在大约三年的时间里，对意大利北部Trecate地区受石油污染的地下水的排放进行了监测。在此期间进行的分析和理化测量结果表明，地下水中溶解或漂浮的碳氢化合物与某些电子受体的浓度之间存在相关性。氧化还原电势和溶解氧浓度的变化与碳氢化合物的浓度有关。对于每种类型的氧化性化合物或元素，都对自然生物衰减进行了量化。结果表明，通过降解去除的碳氢化合物的量（以每天的苯当量计）非常稳定，其值介于每天每立方米1.00克至1.26克之间。本文报告了在研究的头三年中获得的结果，该研究仍在进行中。

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