Enhanced bioremediation of TCE-contaminated groundwater with coexistence of fuel oil: Effectiveness and mechanism study

Lien, P.J.; Yang, Zhong-Jian; Chang, Yih-Feng; Tu, Y.T.; Kao, C. L.

doi:10.1016/j.cej.2016.01.011

Cited by 53 publications

(22 citation statements)

References 78 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the case of pollution events, actions must be evaluated and planned for removal and control of potential risk in soil and groundwater originating from NAPLs [7][8][9][10]. Figure 1 shows the main guidelines for activity pollution control in contaminated sites.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Remediation in Situ of Hydrocarbons by Combined Treatment in a Contaminated Alluvial Soil due to an Accidental Spill of LNAPL

et al. 2016

View full text Add to dashboard Cite

Soil contamination represents an environmental issue which has become extremely important in the last decades due to the diffusion of industrial activities. Accidents during transport of dangerous materials and fuels may cause severe pollution. The present paper describes the criteria of the actions which were operated to remediate the potential risk and observed negative effects on groundwater and soil originating from an accidental spill of diesel fuel from a tank truck. With the aim to evaluate the quality of the involved environmental matrices in the "emergency" phase, in the following "safety" operation and during the remediation action, a specific survey on hydrocarbons, light and heavy, was carried out in the sand deposits soil. Elaboration of collected data allows us to observe the movement of pollutants in the unsaturated soil. The remediation action was finalized to improve the groundwater and soil quality. The former was treated by a so called "pump and treat" system coupled with air sparging. A train of three different technologies was applied to the unsaturated soil in a sequential process: soil vapour extraction, bioventing and enhanced bioremediation. Results showed that the application of sequential remediation treatments allowed us to obtain a state of quality in unsaturated soil and groundwater as required by Italian law.

show abstract

Section: Introductionmentioning

confidence: 99%

“…Once the state of pollution is determined, technologies have to be applied for the treatment of soils and groundwater. The main applied technologies are: air sparging, soil vapour extraction, pumping remediation, enhanced bioremediation and microbial uptake and "pump and treat" system [7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Remediation in Situ of Hydrocarbons by Combined Treatment in a Contaminated Alluvial Soil due to an Accidental Spill of LNAPL

et al. 2016

View full text Add to dashboard Cite

show abstract

“…Groundwater is a critically important water source world-wide, and it accounts a large amount of drinking water supplies [1]. Due to tetrachloroethene (PCE) and trichloroethene (TCE) being dumped into the environment as a consequence of intensive industrial use of chloroethene-based solvents and degreasing agents, chloroethene contamination of groundwater has been recognized as a significant environmental problem world-wide [2][3][4]. PCE and TCE are persistent toxic chemicals and can cause serious health problems in people [5].…”

Section: Introductionmentioning

confidence: 99%

Modeling aerobic biotransformation of vinyl chloride by vinyl chloride-assimilating bacteria, methanotrophs and ethenotrophs

Liu

Ngo

Guo

et al. 2017

Journal of Hazardous Materials

View full text Add to dashboard Cite

Recent studies have investigated the potential of enhanced groundwater Vinyl Chloride (VC) remediation in the presence of methane and ethene through the interactions of VC-assimilating bacteria, methanotrophs and ethenotrophs. In this study, a mathematical model was developed to describe aerobic biotransformation of VC in the presence of methane and ethene for the first time. It examines the metabolism of VC by VC-assimilating bacteria as well as cometabolism of VC by both methanotrophs and ethenotrophs, using methane and ethene respectively, under aerobic conditions. The developed model was successfully calibrated and validated using experimental data from microcosms with different experimental conditions. The model satisfactorily describes VC, methane and ethene dynamics in all microcosms tested. Modeling results describe that methanotrophic cometabolism of ethene promotes ethenotrophic VC cometabolism, which significantly enhances aerobic VC degradation in the presence of methane and ethene. This model is expected to be a useful tool to support effective and efficient processes for groundwater VC remediation.

show abstract

“…Among the organic contaminants, due to its widespread use in spray, varnish, and dry cleaning industries, trichloroethylene (TCE) is a major groundwater pollutant [1,2,3,4,5,6]. The solubility of TCE in water, its volatility, and lack of standard disposal practices have made it the focus of remediation and monitoring studies [7,8,9,10,11,12,13] (Figure 1). In dosage exceeding 250 ppm, TCE is neurotoxic and is classified as “probably carcinogenic in humans” by the International Agency for Research on Cancer [14].…”

Section: Introductionmentioning

confidence: 99%

Carbon Nanotube Based Groundwater Remediation: The Case of Trichloroethylene

et al. 2016

View full text Add to dashboard Cite

Adsorption of chlorinated organic contaminants (COCs) on carbon nanotubes (CNTs) has been gaining ground as a remedial platform for groundwater treatment. Applications depend on our mechanistic understanding of COC adsorption on CNTs. This paper lays out the nature of competing interactions at play in hybrid, membrane, and pure CNT based systems and presents results with the perspective of existing gaps in design strategies. First, current remediation approaches to trichloroethylene (TCE), the most ubiquitous of the COCs, is presented along with examination of forces contributing to adsorption of analogous contaminants at the molecular level. Second, we present results on TCE adsorption and remediation on pure and hybrid CNT systems with a stress on the specific nature of substrate and molecular architecture that would contribute to competitive adsorption. The delineation of intermolecular interactions that contribute to efficient remediation is needed for custom, scalable field design of purification systems for a wide range of contaminants.

show abstract

Enhanced bioremediation of TCE-contaminated groundwater with coexistence of fuel oil: Effectiveness and mechanism study

Cited by 53 publications

References 78 publications

Remediation in Situ of Hydrocarbons by Combined Treatment in a Contaminated Alluvial Soil due to an Accidental Spill of LNAPL

Remediation in Situ of Hydrocarbons by Combined Treatment in a Contaminated Alluvial Soil due to an Accidental Spill of LNAPL

Modeling aerobic biotransformation of vinyl chloride by vinyl chloride-assimilating bacteria, methanotrophs and ethenotrophs

Carbon Nanotube Based Groundwater Remediation: The Case of Trichloroethylene

Contact Info

Product

Resources

About