Biodegradation kinetics of naphthalene in nonaqueous phase liquid-water mixed batch systems: Comparison of model predictions and experimental results

化学 生物降解 矿化(土壤科学) 碳氢化合物 色谱法 溶解 动力学 环境化学 有机化学 氮气 量子力学 物理
作者
Subhasis Ghoshal,Richard G. Luthy
出处
期刊:Biotechnology and Bioengineering [Wiley]
卷期号:57 (3): 356-366 被引量:29
标识
DOI:10.1002/(sici)1097-0290(19980205)57:3<356::aid-bit12>3.0.co;2-e
摘要

Biotechnology and BioengineeringVolume 57, Issue 3 p. 356-366 Biodegradation kinetics of naphthalene in nonaqueous phase liquid-water mixed batch systems: Comparison of model predictions and experimental results Subhasis Ghoshal, Corresponding Author Subhasis Ghoshal Department of Civil Engineering and Applied Mechanics, McGill University, Montreal, Quebec, Canada H3A 2K6. Tel. (514) 398-6860, Fax (514) 398-7361Department of Civil Engineering and Applied Mechanics, McGill University, Montreal, Quebec, Canada H3A 2K6. Tel. (514) 398-6860, Fax (514) 398-7361Search for more papers by this authorRichard G. Luthy, Richard G. Luthy Department of Civil and Environmental Engineering Carnegie Mellon University, Pittsburgh, Pennsylvania 15213Search for more papers by this author Subhasis Ghoshal, Corresponding Author Subhasis Ghoshal Department of Civil Engineering and Applied Mechanics, McGill University, Montreal, Quebec, Canada H3A 2K6. Tel. (514) 398-6860, Fax (514) 398-7361Department of Civil Engineering and Applied Mechanics, McGill University, Montreal, Quebec, Canada H3A 2K6. Tel. (514) 398-6860, Fax (514) 398-7361Search for more papers by this authorRichard G. Luthy, Richard G. Luthy Department of Civil and Environmental Engineering Carnegie Mellon University, Pittsburgh, Pennsylvania 15213Search for more papers by this author First published: 26 March 2000 https://doi.org/10.1002/(SICI)1097-0290(19980205)57:3<356::AID-BIT12>3.0.CO;2-ECitations: 16AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract A model is formulated to describe dissolution of naphthalene from an insoluble nonaqueous phase liquid (NAPL) and its subsequent biodegradation in the aqueous phase in completely mixed batch reactors. The physicochemical processes of equilibrium partitioning and mass transfer of naphthalene between the NAPL and aqueous phases were incorporated into the model. Biodegradation kinetics were described by Monod's microbial growth kinetic model, modified to account for the inhibitory effects of 1,2-naphthoquinone formed during naphthalene degradation under certain conditions. System parameters and biokinetic coefficients pertinent to the NAPL-water systems were determined either by direct measurement or from nonlinear regression of the naphthalene mineralization profiles obtained from batch reactor tests with two-component NAPLs comprised of naphthalene and heptamethylnonane. The NAPLs contained substantial mass of naphthalene, and naphthalene biodegradation kinetics were evaluated over the time required for near complete depletion of naphthalene from the NAPL. Model predictions of naphthalene mineralization time profiles compared favorably to the general trends observed in the data obtained from laboratory experiments with the two-component NAPL, as well as with two coal tars obtained from the subsurface at contaminated sites and composed of many different PAHs (polycyclic aromatic hydrocarbon compounds). The effects of varying the NAPL mass and the naphthalene mole fractions in the NAPL are discussed. It was observed that the time to achieve a given percent removal of naphthalene does not change significantly with the initial mass of naphthalene in a fixed volume of the NAPL. Significant changes in the mineralization profiles are observed when the volume (and mass) of NAPL in the system is changed. © 1998 John Wiley & Sons, Inc. Biotechnol Bioeng 57: 356–366, 1998. Citing Literature Volume57, Issue35 February 1998Pages 356-366 RelatedInformation
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