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首页> 外文期刊>Bulletin of Environmental Contamination and Toxicology >Treatment train for site remediation at a petrochemicals-contaminated site within a petroleum refinery.
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Treatment train for site remediation at a petrochemicals-contaminated site within a petroleum refinery.

机译：用于在石油精炼厂中受石化产品污染的站点进行站点修复的处理系统。

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The objectives of this study were to: (1) perform a site assessment to delineate the distribution of petroleum hydrocarbon in the subsurface at the studied site; (2) develop a treatment train (TT) for site remediation; and (3) operate the TT and evaluate the performance of this treatment system. Two underground storage tanks (USTs) were installed as a part of waste oil storage tank farm within a petroleum refinery in southern Taiwan in the late 1980s. In may 1998, a significant amount of various petroleum hydrocarbons were detected in the groundwater samples collected around the USTs. To effectively remove the free product on the groundwater and remediate the contaminated groundwater while the petroleum refinery was still in operation, a site-specific TT system was developed for the site. The TT system has been operated for three years since its installation in 1998 due to the leakage of USTs. Results indicated that the constructed TT system is capable of containing the free product and remediating the dissolved petroleum hydrocarbon plume. The effectiveness of the TT system was verified by the following field results: (1) the increased cumulative amount of collected free product and decreased daily free product recovery; (2) the decreased contaminant concentrations in groundwater samples collected from the downgradient monitoring wells of the barrier; (3) the increased microbial population and O2 concentrations around the air sparging system; (4) the increased O2 concentrations and decreased CO2 concentrations in the vadose zone inside the treatment area; and (5) the decreased NO3- concentrations in groundwater. It is concluded that a sound TT system is a more efficient and cost-effective measure for site remediation..
机译：这项研究的目的是：（1）进行现场评估，以描述研究现场地下石油烃的分布; （2）进行现场修复的处理程序（TT）; （3）操作TT并评估该处理系统的性能。 1980年代后期，在台湾南部的一家炼油厂内，安装了两个地下储罐（UST）作为废油储罐场的一部分。 1998年5月，在UST周围收集的地下水样品中检测到大量的各种石油烃。为了在石油精炼厂仍在运行时有效地去除地下水中的游离产物并修复受污染的地下水，针对该地点开发了针对特定地点的TT系统。由于UST的泄漏，TT系统自1998年安装以来已运行了三年。结果表明，所构建的TT系统能够容纳游离产物并补救溶解的石油烃羽流。下列现场结果证实了TT系统的有效性：（1）收集的游离产物累积量增加，每日游离产物回收率降低; （2）从屏障下降监测井收集的地下水样品中污染物浓度降低; （3）空气喷射系统周围的微生物数量和O2浓度增加; （4）治疗区域内渗流区内O2浓度升高而CO2浓度降低; （5）地下水中NO3浓度降低。结论是，完善的TT系统是一种更有效，成本更低的站点修复措施。

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