Study on Natural Attenuation of Groundwater Organic Pollutants by Integrating Microbial Community Dynamics and Isotope Analysis

Water, Год журнала: 2025, Номер 17(4), С. 555 - 555

Опубликована: Фев. 14, 2025

This study focuses on a typical chemically contaminated site in the southeastern coastal region of China, investigating natural attenuation mechanisms benzene and o-toluidine groundwater through high-throughput sequencing, physicochemical analyses, stable isotope techniques. The results demonstrate significant heterogeneity spatial distribution degradation processes pollutants within zones (W27, W28, W31). Environmental factors such as HCO3−, SO42−, ORP predominantly influence microbial community structure functional distribution. Stable data reveal that δD δ13C enrichment effects are most pronounced deep layer (W28_40m), indicating active pollutant degradation, while deeper layers W27 W31 is constrained by anaerobic conditions reduced activity. combined analysis hydrogen carbon isotopes elucidates pathways dynamic zones, providing quantitative evidence for scientific support optimizing remediation strategies.

Язык: Английский

Long-term response mechanism of bacterial communities to chemical oxidation remediation in petroleum hydrocarbon contaminated groundwater

Journal of Hazardous Materials, Год журнала: 2025, Номер 488, С. 137239 - 137239

Опубликована: Янв. 15, 2025

Язык: Английский