Surfactant foam flushing for in situ removal of DNAPLs in shallow soils
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- 作者：Julien Maire ; Nicolas Fatin-Rouge ; nicolas.fatin-rouge@univ-fcomte.fr" class="auth_mail" title="E-mail the corresponding author
- 关键词：Foam ; DNAPL recovery ; Heavy chlorinated compounds ; In situ ; Groundwater
- 刊名：Journal of Hazardous Materials
- 出版年：2017
- 出版时间：5 January 2017
- 年：2017
- 卷：321
- 期：Complete
- 页码：247-255
- 全文大小：1964 K
文摘
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Enhanced foam technology was used to quickly recover up to 60% of a DNAPL residual.
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Low ▽P for foam propagation (<100 kPa m−1) compatible with shallow soils were used.
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Surfactant first releases DNAPL then stabilizes gas as a foam that pushes the DNAPL.
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Coupled with surfactant flushing recovery was up to 95% with liquid injected <2 PV.