A model and experimental study for dissolution efficiency of gaseous substrates through in situ sparging

K. F. Liang; M. C.Tom Kuo

doi:10.1016/j.jhazmat.2008.07.156

A model and experimental study for dissolution efficiency of gaseous substrates through in situ sparging

K. F. Liang, M. C.Tom Kuo

Department of Resources Engineering

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

Delivering electron acceptors, electron donors, and nutrients in gas state has been practiced for in situ bioremediation. A mathematical model based on air-channel concept was developed in this paper to assess the dissolution transient behavior of gaseous substrates for an in situ sparging process using their chemical and physical properties, aquifer-media characteristics, and field operating conditions. Using toluene as an example, the model was verified with experimental data obtained at field sparging rates ranging from 40 to 80 L air/min. The verified model is a useful means of predicting the dissolution behavior of gaseous substrates during sparging in an unconfined aquifer.

Original language	English
Pages (from-to)	204-214
Number of pages	11
Journal	Journal of Hazardous Materials
Volume	164
Issue number	1
DOIs	https://doi.org/10.1016/j.jhazmat.2008.07.156
Publication status	Published - 2009 May 15

All Science Journal Classification (ASJC) codes

Environmental Engineering
Environmental Chemistry
Waste Management and Disposal
Pollution
Health, Toxicology and Mutagenesis

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10.1016/j.jhazmat.2008.07.156

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AB - Delivering electron acceptors, electron donors, and nutrients in gas state has been practiced for in situ bioremediation. A mathematical model based on air-channel concept was developed in this paper to assess the dissolution transient behavior of gaseous substrates for an in situ sparging process using their chemical and physical properties, aquifer-media characteristics, and field operating conditions. Using toluene as an example, the model was verified with experimental data obtained at field sparging rates ranging from 40 to 80 L air/min. The verified model is a useful means of predicting the dissolution behavior of gaseous substrates during sparging in an unconfined aquifer.

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A model and experimental study for dissolution efficiency of gaseous substrates through in situ sparging

Abstract

All Science Journal Classification (ASJC) codes

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