Implementation of a Green and Sustainable Concept to Evaluate Footprint and Optimize Contaminated Site Remediation in China: A Case Study

Abstract In this study, the application mode and evaluation methods of green and sustainable remediation (GSR) were investigated in a soil remediation project. On-site equipment, materials, and energy usage were recorded, and environmental footprints were calculated using qualitative and semiquantitative methods. Replacement of equipment with appropriate power, reduction of redundant drive routes, increase of the reuse ratio of on-site and off-site materials, and optimization of remediation among other improvements should be implemented. Conventionally, the total air pollutant emission, water consumption, energy use, and greenhouse gas (GHG) emission were 1,682 kg, 3,093 t, 249.5 MWh, and 320 t CO2e, respectively. Furthermore, on basis of 10 best management practices (BMPs) selected, the all-life cycle of the project was optimized using the GSR concept by eliminating inappropriate practices; redundant drive route was reduced by 19.8% using ArcGIS and TravellerAPP, while the reuse ratio and remediation met...