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Related Experiment Video

Updated: Jul 21, 2025

Wastewater Irrigation Impacts on Soil Hydraulic Conductivity: Coupled Field Sampling and Laboratory Determination of Saturated Hydraulic Conductivity

Wastewater Irrigation Impacts on Soil Hydraulic Conductivity: Coupled Field Sampling and Laboratory Determination of Saturated Hydraulic Conductivity

Published on: August 19, 2018

Hydrogeochemical changes during artificial groundwater well recharge.

Ningfei Li¹, Hang Lyu², Guigui Xu³

¹Key Laboratory of Groundwater Resources and Environment, Ministry of Education, Jilin University, Changchun 130021, China; College of Construction Engineering, Jilin University, Changchun 130021, China; Institute of Water Resources and Environment, Jilin University, Changchun 130021, China.

The Science of the Total Environment

|July 26, 2023

Summary

Artificial groundwater recharge impacts water quality through hydrogeochemical reactions. Controlling recharge water quality, especially dissolved oxygen and organic matter, is key to protecting groundwater post-recharge.

Keywords:

Dissolved organic matter Field-scale experiment Hydrogeochemical reactions Redox reactions Water quality

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Last Updated: Jul 21, 2025

Wastewater Irrigation Impacts on Soil Hydraulic Conductivity: Coupled Field Sampling and Laboratory Determination of Saturated Hydraulic Conductivity

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Dissolved Solute Sampling Across an Oxic-Anoxic Soil-Water Interface Using Microdialysis Profilers

Published on: March 24, 2023

Area of Science:

Environmental Science
Hydrogeology
Water Resource Management

Background:

Artificial groundwater recharge is crucial for water resource management.
Understanding hydrogeochemical changes during recharge is vital for groundwater quality.
Limited studies comprehensively assess environmental, chemical, organic matter, and microbial impacts.

Purpose of the Study:

Investigate hydrogeochemical evolution during artificial groundwater recharge via a well.
Analyze the influence of recharge water and water-rock interactions on groundwater quality.
Identify key reactions and organic matter roles in groundwater quality changes.

Main Methods:

Conducted artificial groundwater recharge experiments in Xiong'an New Area.
Monitored groundwater levels, water quality indicators, dissolved organic matter (DOM), and microbial communities.
Analyzed hydrogeochemical reactions including mineral dissolution-precipitation and redox processes.

Main Results:

Groundwater levels showed rapid rise, fluctuation, and subsequent rise after recharge water injection.
Water quality, DOM, and microbial communities were altered by mixing and water-rock interactions.
Sequential reactions included aerobic respiration, nitrification, denitrification, and Mn/Fe mineral redox processes.
Protein-like DOM fueled aerobic respiration and denitrification; humic-like DOM enhanced Mn/Fe reduction.

Conclusions:

Recharge water quality significantly impacts groundwater quality after artificial recharge.
Controlling dissolved oxygen and DOM in recharge water can mitigate negative effects.
Findings are significant for predicting groundwater quality evolution and ensuring safety during artificial recharge.