Multi-criteria Decision Analysis for Desired Contaminated Groundwater Remediation Strategies based on TOPSIS method

Abstract

This study introduced a multi-criteria decision making TOPSIS method to identify the compromised groundwater remediation strategies in 10 and 20 years periods. Based on the PAT technology, the model is applied to a real-world area located in northeastern China where groundwater system has been contaminated severely. Four influential criteria (i.e. total pumping volume, total cost, average remaining contaminant concentration and maximum excess life time cancer risk) are considered for 10 potential pumping alternatives. Results from the case study indicate that A5(10-year) and A8(20-year) are the desired remediation strategy during remediation process.