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Bioremediation

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.

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Updated: Jan 14, 2026

Electrochemically and Bioelectrochemically Induced Ammonium Recovery

Electrochemically and Bioelectrochemically Induced Ammonium Recovery

Published on: January 22, 2015

Array Optimization and Pilot Verification of Electrokinetic-Enhanced Biodechlorination System.

Shi-Tong Yu^1,2, Zheng-Tao Li^1,2, Si-Ying Yang^1,2

¹State Key Laboratory of Soil Pollution Control and Safety, Zhejiang University, Hangzhou 310058, China.

Environmental Science & Technology

|January 13, 2026

Summary

Electrokinetic bioremediation (EK-BIO) effectively removes organochlorines from contaminated soil. This study validated EK-BIO

Keywords:

Bioaugmentation Biodechlorination Chloroethylene Field demonstration Pilot test

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Continuously-stirred Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation

Continuously-stirred Anaerobic Digester to Convert Organic Wastes into Biogas: System Setup and Basic Operation

Published on: July 13, 2012

Area of Science:

Environmental Science
Environmental Engineering
Microbiology

Background:

Organochlorine contamination poses significant environmental risks, particularly in low-permeability soils.
In situ remediation technologies are needed for effective and sustainable contaminant removal.
Electrokinetic bioremediation (EK-BIO) shows potential but requires optimization for field applications.

Purpose of the Study:

To develop and validate a comprehensive EK-BIO framework for in situ organochlorine remediation.
To optimize additive dosage and electrode configuration for enhanced EK-BIO performance.
To assess the microbial community shifts and economic/environmental benefits of EK-BIO.

Main Methods:

Laboratory batch and column experiments for optimizing EK-BIO parameters.
Pilot-scale field validation of the optimized EK-BIO process.
Microbial community analysis and life cycle assessment (LCA).

Main Results:

Optimized EK-BIO achieved over 90.0% TCE removal and 74.0% chloroethylene-to-ethylene conversion.
Significant increase in organohalide-respiring bacteria observed in EK-BIO treatment.
LCA indicated EK-BIO offers reduced carbon emissions, energy use, and costs compared to thermal remediation.

Conclusions:

The study successfully established and validated a lab-to-field EK-BIO framework.
EK-BIO is a feasible and reliable technology for in situ organochlorine remediation.
EK-BIO presents environmental and economic advantages over conventional methods.