Bioremediation of trichloroethylene-contaminated groundwater using green carbon-releasing substrate with pH control capability

Lee, Hsin-Chia; Chen, Ssu-Ching; Sheu, Yih-Terng; Yao, Chao-Ling; Lo, Kai-Hung; Kao, Chih-Ming

doi:10.1016/j.envpol.2024.123768

Environmental Pollution

2024

DOI: 10.1016/j.envpol.2024.123768

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Bioremediation of trichloroethylene-contaminated groundwater using green carbon-releasing substrate with pH control capability

Hsin-Chia Lee,

Ssu-Ching Chen,

Yih-Terng Sheu

et al.

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Cited by 3 publications

References 77 publications

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Effect of soil-groundwater system on migration and transformation of organochlorine pesticides: A review

Li,

Huo,

Zhang

et al. 2025

Ecotoxicology and Environmental Safety

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Effect of soil-groundwater system on migration and transformation of organochlorine pesticides: A review

Li,

Huo,

Zhang

et al. 2025

Ecotoxicology and Environmental Safety

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Laccase immobilized on amino modified magnetic biochar as a recyclable biocatalyst for efficient degradation of trichloroethylene

Yang,

Zhang,

Dong

et al. 2024

International Journal of Biological Macromolecules

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Investigating the Potential of River Sediment Bacteria for Trichloroethylene Bioremediation

Gurav,

Ji,

Hwang

2024

Water

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Trichloroethylene (TCE) is a prevalent groundwater contaminant detected worldwide, and microbes are sensitive indicators and initial responders to these chemical contaminants causing disturbances to their ecosystem. In this study, microbes isolated from San Marcos River sediment were screened for their TCE degradation potential. Among the twelve isolates (SAN1-12), five isolates demonstrated TCE degradation within 5 days at 25 °C and 40 mg/L of TCE concentration in the following order: SAN8 (87.56%), SAN1 (77.31%), SAN2 (76.58%), SAN3 (49.20%), and SAN7 (3.36%). On increasing the TCE concentration to 80 mg/L, the degradation efficiency of these isolates declined, although SAN8 remained the prominent TCE degrader with 75.67% degradation. The prominent TCE-degrading isolates were identified as Aeromonas sp. SAN1, Bacillus sp. SAN2, Gordonia sp. SAN3, and Bacillus proteolyticus SAN8 using 16S rRNA sequencing. The TCE degradation and cell biomass of Bacillus proteolyticus SAN8 were significantly improved when the incubation temperature was increased from 25 °C to 30 °C. However, both slightly acidic and alkaline pH levels, as well as higher TCE concentrations, lowered the efficacy of TCE degradation. Nevertheless, these conditions led to an increase in bacterial cell biomass.

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Bioremediation of trichloroethylene-contaminated groundwater using green carbon-releasing substrate with pH control capability

Cited by 3 publications

References 77 publications

Effect of soil-groundwater system on migration and transformation of organochlorine pesticides: A review

Effect of soil-groundwater system on migration and transformation of organochlorine pesticides: A review

Laccase immobilized on amino modified magnetic biochar as a recyclable biocatalyst for efficient degradation of trichloroethylene

Investigating the Potential of River Sediment Bacteria for Trichloroethylene Bioremediation

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