Pentachlorophenol contaminated groundwater bioremediation using immobilized Sphingomonas cells inoculation in the bioreactor system

Yang, Chu-Fang; Lee, Chi-Mei

doi:10.1016/j.jhazmat.2007.06.102

Cited by 38 publications

(13 citation statements)

References 22 publications

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“…The extensive use of pentachlorophenol (PCP) has led to the pollution of soil and groundwater. PCP toxicity stems from the fact that it is an oxidative phosphorylation inhibitor [3]. Moreover, PCP is recalcitrant to degradation because of its stable aromatic ring structure and high chlorine content.…”

Section: Introductionmentioning

confidence: 99%

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Multisubstrate monod kinetic model for simultaneous degradation of chlorophenol mixtures

Durruty

Okada

Gonzalez

et al. 2011

Biotechnol Bioproc E

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Chlorophenols (CPs) are persistent and highly toxic compounds rated as priority pollutants by the Environmental Protection Agency (EPA). Frequently, these compounds are present as mixtures of CPs in industrial wastewaters. Therefore the study of biodegradation on mixed pollutants is an important aspect of biodegradation and wastewater treatment. In this work, we studied the multisubstrate degradation of CPs by a mixed culture of Pseudomonas aeruginosa and a novel Acromobacter sp. capable of using pentachlorophenol (PCP), 2,4,6 trichlorophenol (2,4,6 TCP) and 2,3,5,6 tetrachlorophenol (2,3,5,6 TeCP) as the sole sources of carbon and energy. The main objective of this work was to evaluate the effect of substrate mixtures on the degradation kinetics of PCP. Batch experiments were conducted with each CP separately and in mixtures of PCP + 2,4,6 TCP, PCP + 2,3,5,6 TeCP, and PCP + 2,4,6 TCP + 2,3,5,6 TeCP. Based upon our results we have concluded that the simultaneous degradation of CPs is a key factor contributing to the improvement of PCP degradation. The kinetic parameters for PCP and 2,4,6 TCP were obtained by fitting the data to a Monod kinetics model. Using such parameters, the model was able to predict simultaneous multisubstrate degradation of PCP with others CPs.

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Section: Introductionmentioning

confidence: 99%

“…Several studies have reported on the biodegradation of PCP by axenic or mixed cultures of bacteria [3,6] and fungi [7]. Although PCP degradation is very effective when using pure cultures, the ability of mixed cultures to survive in a non-sterile environment is important in applied biodegradation in the field [6].…”

Section: Introductionmentioning

confidence: 99%

Multisubstrate monod kinetic model for simultaneous degradation of chlorophenol mixtures

Durruty

Okada

Gonzalez

et al. 2011

Biotechnol Bioproc E

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“…Several microbial species are able to degrade the chemical (e.g. Leung et al, 1997a;Yang and Lee, 2008) and here a single degrading strain was employed in combination with a recalcitrant contaminant. Contaminant radiolabelling was used to enable detection of 14 CO 2 evolved through biodegradation (NiquiArroyo et al, 2006;Lear et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Enhanced biodegradation of pentachlorophenol in unsaturated soil using reversed field electrokinetics

Harbottle

Lear

Sills

et al. 2009

Journal of Environmental Management

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“…Studies on pure cultures of Rhizobiales have shown that they may also be capable of degrading methyl parathion, metolachlor, polyacrylamides, and quaternary ammonium alcohols, all potential source water contaminants (14,23,27,39).…”

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confidence: 99%

Microbial Survey of a Full-Scale, Biologically Active Filter for Treatment of Drinking Water

White

DeBry

Lytle

2012

Appl Environ Microbiol

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ABSTRACTThe microbial community of a full-scale, biologically active drinking water filter was surveyed using molecular techniques.Nitrosomonas,Nitrospira,Sphingomonadales, andRhizobialesdominated the clone libraries. The results elucidate the microbial ecology of biological filters and demonstrate that biological treatment of drinking water should be considered a viable alternative to physicochemical methods.

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Pentachlorophenol contaminated groundwater bioremediation using immobilized Sphingomonas cells inoculation in the bioreactor system

Cited by 38 publications

References 22 publications

Multisubstrate monod kinetic model for simultaneous degradation of chlorophenol mixtures

Multisubstrate monod kinetic model for simultaneous degradation of chlorophenol mixtures

Enhanced biodegradation of pentachlorophenol in unsaturated soil using reversed field electrokinetics

Microbial Survey of a Full-Scale, Biologically Active Filter for Treatment of Drinking Water

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