Numerical Modeling to Assess DNAPL Movement and Removal at the Scenic Site Operable Unit Near Baton Rouge, Louisiana: A Case Study.

IF 1.6 4区环境科学与生态学 Q4 ENVIRONMENTAL SCIENCES

Soil & Sediment Contamination Pub Date : 2003-11-01 DOI:10.1080/714037722

M. Oostrom, P. Thorne, M. White, M. Truex, T. Wietsma

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引用次数: 2

Abstract

Detailed three-dimensional multifluid flow modeling was conducted to assess movement and removal of dense nonaqueous phase liquid (DNAPL) movement at a waste site in Louisiana. The site's subsurface consists of several permeable zones separated by (semi) confining clays. In the upper subsurface, the two major permeable zones are, starting with the uppermost zone, the +40- and +20-MSL (mean sea level) zones. At the site, a total of 23,000 m3 of DNAPL was emplaced in an open waste pit between 1962 and 1974. In this period, considerable amounts of DNAPL moved into the subsurface. By 1974 a portion of the DNAPL was removed and the waste site was filled with low-permeability materials and closed. During this process, some of the DNAPL was mixed with the fill material and remained at the site. Between 1974 and 2000, no additional DNAPL recovery activities were implemented. In an effort to reduce the DNAPL source, organic liquid has been pumped through a timed-pumping scheme from a total of 7 wells starting in c...

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在路易斯安那州巴吞鲁日附近风景区可操作单元评估DNAPL移动和移除的数值模拟:一个案例研究。

采用详细的三维多流体流动模型来评估路易斯安那州一个垃圾场致密非水相液体(DNAPL)的运动和去除。该地点的地下由几个由(半)封闭粘土隔开的可渗透带组成。在上层地下，两个主要的渗透带，从最上层开始，是+40-和+20-MSL(平均海平面)带。在1962年至1974年期间，在该地点共将23,000立方米的DNAPL放置在一个露天废物坑中。在此期间，相当数量的DNAPL进入地下。到1974年，DNAPL的一部分被移除，废物场地被低渗透材料填充并关闭。在此过程中，一些DNAPL与填充物混合并留在现场。在1974年至2000年期间，没有执行额外的DNAPL恢复活动。为了减少DNAPL的来源，从2014年开始，通过定时泵送方案从总共7口井中泵送有机液体。

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来源期刊

Soil & Sediment Contamination 环境科学-环境科学

CiteScore

4.20

自引率

10.00%

发文量

审稿时长

2.2 months

期刊介绍： When it comes to assessing and mitigating contaminated soils and sediments, there is no substitute for having the very latest tools, techniques and methodologies at your fingertips to help you deal with these issues efficiently and cost-effectively. This is just the kind of essential expertise you’ll only find in Soil and Sediment Contamination . This internationally, peer-reviewed publication focuses on soil and sediment contamination from: -Sludges- Petroleum- Petrochemicals- Chlorinated hydrocarbons- Pesticides- Lead and other heavy metals. Get detailed descriptions of all the latest and most efficient offsite and in situ remediation techniques, strategies for assessing health effects and hazards, and tips for dealing with everyday regulatory and legal issues. With the state-of-the-art tools that Soil and Sediment Contamination provides, you can successfully assess, mitigate, and solve both rural and urban soil contamination problems as efficiently and economically as possible.