Validation of Lab-Scale Microbial Fuel Cell-Based In-situ Electrokinetic Soil Remediation for Arctic Conditions (Phase II)

Status: Ongoing - Phase I

Funding Agency: Department of War (DOW)

Abstract: 

This project builds on the lab-scale system and validates microbial fuel cell-based electrokinetic remediation (MFC-EKR) at an intermediate scale under Arctic conditions (5°C). The system uses electricity generated by microbial activity to remove heavy metals from contaminated soil, without an external power source. The aim is to confirm that the removal seen at lab scale holds as the system is scaled up, and to define the conditions under which it works best. Lead (Pb)-contaminated soil is treated using two electrode configurations run in parallel: Configuration A, a central anode with four radial cathodes, and Configuration B, a central cathode with four radial anodes. Comparing the two identifies which layout removes metal most effectively. The project also aims to study how performance is affected by changing conditions by covering soil properties such as soil type, moisture content, pH and electrical conductivity. By moving from lab scale to an intermediate scale, this work gives insight into scaling the system up toward field application. The work provides the DoD with validated performance data to guide remediation at formerly used and remote cold-region defense sites.

Investigators: Dr. Jagadish Torlapati, PhD.

Links to Publications: