Design of Optimal Groundwater Remediation Systems Based on Multi-criteria Decision Making ELECTRE III Method

This study introduced a multi-criteria decision making ELECTRE III method to identify the compromised groundwater remediation strategies in 15-year periods. This multi-criteria decision making method has the advantage of reflecting the priorities of the project based on the points of view of decision makers. Based on the PAT technology, the model is applied to a real-world coal-fired power plant located in southeastern 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) for 10 potential pumping alternatives are considered. Results from the case study indicate that action 3 is the desired remediation strategy during 15-year remediation process.