通过监测自然衰减(MNA)和MNA增强来管理氯乙烯和1,4-二恶烷的大量稀释羽流。

IF 3 Q3 ENGINEERING, ENVIRONMENTAL
Lee K Rhea, Catherine Clark
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引用次数: 4

摘要

由于化学、水文地质和经济方面的考虑,管理大量由氯化挥发性有机化合物(CVOCs)和1,4-二恶烷(二恶烷)混合的稀释地下水是一个问题。美国环境保护署(US EPA)对挥发性有机化合物羽状物的管理进行了多年的研究,最近对二恶烷进行了研究。2001年,一个科学顾问委员会审查了美国环保署关于监测CVOC羽流自然衰减(MNA)的研究。在近二十年的时间里,美国环境保护署编写了一系列报告,建议进行具体的额外研究。本文件对这些报告进行了总结,并附有支持信息,包括二恶烷生物降解的证据。根据总结的报告,美国环保局在其他地方记录的工作,以及其他人的工作,在适当的条件下,MNA或增强MNA仍然是这些羽流的可行管理选择。然而,与仅含有CVOCs的羽流的MNA不同,大型稀释混合羽流的MNA应该通过共同代谢氧化而不是直接代谢过程发生。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Management of large dilute plumes of chloroethenes and 1,4-dioxane via monitored natural attenuation (MNA) and MNA augmentation.

Management of large dilute plumes of chloroethenes and 1,4-dioxane via monitored natural attenuation (MNA) and MNA augmentation.

Management of large, dilute groundwater plumes of comingled chlorinated volatile organic compounds (CVOCs) and 1,4-dioxane (dioxane) is problematic due to chemical, hydrogeologic and economic concerns. The US Environmental Protection Agency (US EPA) has conducted research on the management of CVOC plumes for many years, and more recently dioxane. US EPA research on monitored natural attenuation (MNA) of CVOC plumes was reviewed by a science advisory board in 2001. Specific additional research was recommended and has been addressed in a series of US EPA reports produced over almost two decades. These reports are summarized in this document along with supporting information including evidence of biological degradation of dioxane. Based on the summarized reports, US EPA work documented elsewhere, and the work of others, under appropriate conditions MNA or augmented MNA remain viable management options for these plumes. Unlike MNA of plumes containing only CVOCs, however, MNA of large dilute comingled plumes should be expected to occur by cometabolic oxidation rather than direct metabolic processes.

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来源期刊
CiteScore
3.50
自引率
21.10%
发文量
37
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