Evaluating the interception mechanism and spatiotemporal response of PO43− to the transformation of Fe species in riparian zone DOI
Ziwei Guo, Zhang Wen, Yiming Li

et al.

Journal of Hydrology, Journal Year: 2024, Volume and Issue: unknown, P. 132568 - 132568

Published: Dec. 1, 2024

Language: Английский

Nitrogen removal in freshwater sediments of riparian zone: N-loss pathways and environmental controls DOI Creative Commons
Fei Ye, Lei Duan,

Yaqiao Sun

et al.

Frontiers in Microbiology, Journal Year: 2023, Volume and Issue: 14

Published: Aug. 17, 2023

The riparian zone is an important location of nitrogen removal in the terrestrial and aquatic ecosystems. Many studies have focused on efficiency one or two processes zone, less attention has been paid to interaction different transformation impact situ environmental conditions. molecular biotechnology, microcosm culture experiments 15N stable isotope tracing techniques were used this research at Weinan section Wei River, reveal mechanism with multi-layer lithologic structure. results showed that rate was 4.14-35.19 μmol·N·kg-1·h-1. Denitrification, dissimilatory reduction ammonium (DNRA) anaerobic oxidation (anammox) jointly achieved natural attenuation process denitrification dominant (accounting for 59.6%). High dissolved organic nitrate ratio (DOC:NO3-) would promote denitrification, but when NO3- content than 0.06 mg/kg, DNRA occur preference denitrification. Furthermore, abundances functional genes (norB, nirS, nrfA) anammox bacterial 16S rRNA gene similar distribution patterns corresponding rates. Sedimentary NOX-, Fe(II), carbon (DOC) microbial abundance main factors affecting zone. Fe (II) promoted through dependent ferrous under mediation, DOC promotes enhancing effect. study can be management prevention control global pollution.

Language: Английский

Citations

14
Distribution and risk assessment of antibiotics under water level fluctuation in the riparian zone of the Hanjiang River DOI Creative Commons
Yuqiong Li, Lei Tong,

Jiayue Zhang

et al.

Ecotoxicology and Environmental Safety, Journal Year: 2023, Volume and Issue: 256, P. 114833 - 114833

Published: March 28, 2023

The riparian zone (RZ) is an important region connecting surface water and groundwater, it has widely been acknowledged for its pollutant buffering capacity. However, the decontaminating effect of RZ on trace organic compounds such as antibiotics received little attention. This study explored distribution 21 4 sulfonamide metabolites in river groundwater lower reaches Hanjiang River. diffusion exchange contaminants between riverbanks under influence conservancy projects (Xinglong Dam Yangtze-Hanjiang Water Diversion Project) were investigated. Macrolide prevalent (62.5-100%) samples (42.9-80.4%). Ofloxacin chlortetracycline detected with highest concentrations (12.2 ng L-1) (9.3 respectively. Higher levels observed spring winter than other seasons. river-groundwater interaction a certain interception antibiotics, especially near riverbanks. Redox sensitive element Fe2+ showed significantly positive correlations some tetracycline macrolide (p < 0.05), thus migration mechanism condition redox change should be investigated further. Environmental risks posed by assessed algae, daphnids, fish groundwater. Only clarithromycin presented medium risk to algae (0.1 RQ 1), rest low (RQ 0.1). Nevertheless, range may further extended interactions water. Accurate understanding antibiotic transport critical developing management strategies aimed at reducing pollution load watershed.

Language: Английский

Citations

13
Sources and fate of nitrate in the unsaturated zone in an alluvial-lacustrine plain DOI
Yuqin Wang, Guangcai Wang,

Fu Liao

et al.

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 490, P. 137721 - 137721

Published: Feb. 24, 2025

Language: Английский

Citations

0
Seasonal freeze-thaw significantly alters the distinct aquifers solute transport, microbial community assembly patterns, and molecular ecological networks in the hyporheic zone DOI
Dong Li, Yuling Zhang, Xiaosi Su

et al.

Water Research, Journal Year: 2025, Volume and Issue: unknown, P. 123555 - 123555

Published: March 1, 2025

Language: Английский

Citations

0
Fe(III) oxyhydroxides mediated electron transfer from thiols to O2 for hydroxyl radical production DOI
Peng Zhang,

Wanyun Zhang,

Hao Yu

et al.

Chemical Geology, Journal Year: 2024, Volume and Issue: 648, P. 121962 - 121962

Published: Jan. 26, 2024

Language: Английский

Citations

3
ROS production upon groundwater oxygenation: Implications of oxidative capacity during groundwater abstraction and discharging DOI
Yanting Zhang, Na Zhang, Chenglong Yu

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 620, P. 129551 - 129551

Published: April 22, 2023

Language: Английский

Citations

8
The effects of colloidal Fe and Mn on P distribution in groundwater system of Jianghan Plain, China DOI
Shuxin Huang, Lu Chen,

Jiasen Li

et al.

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 854, P. 158739 - 158739

Published: Sept. 13, 2022

Language: Английский

Citations

13
Mechanism of reactive co-transport of Fe2+ and antibiotics in hyporheic zone simulated by quartz sand column DOI
Gan Cui,

Zhao‐Bo Luo,

Chengyuan Su

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 621, P. 129641 - 129641

Published: May 15, 2023

Language: Английский

Citations

7
A sand tank experimental study of distribution, migration and transformation mechanism of iron and phosphorus species under redox fluctuation in a simulated riparian zone DOI
Ziwei Guo, Zhang Wen, Xiaochuang Bu

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 625, P. 130032 - 130032

Published: Aug. 24, 2023

Language: Английский

Citations

7
Reactive migration mechanism of Fe2+ and As3+ during groundwater discharge into river water: Insight from sand column experiments DOI

Xiyu Deng,

Yao Huang, Ziwei Guo

et al.

Journal of Hydrology, Journal Year: 2023, Volume and Issue: 625, P. 130033 - 130033

Published: Aug. 30, 2023

Language: Английский

Citations

7