The duration of treatment and total AZD-9291 budget of the MPE system have been calculated based on the pilot study performed on the SRI Biochim site. The MPE system will require 15 years of operation, which is a conservative estimation. Some of the on-site components and parts that make up the soil vapor and groundwater treatment train will need to be replaced within the 15 years.
The life-cycle inventory results for both alternatives are described below, followed by the life-cycle impact assessment results using the amended ReCiPe method. The amended ReCiPe life-cycle impact assessment method includes an additional impact category, referred to as Land resource that accounts for the occupation of urban space during the life-cycles of the alternatives. An uncertainty analysis was performed on the results and is described below.
3.2.1. Life-cycle inventory analysis
The largest contribution for both alternatives is due to the energy required to capture, separate and treat the contaminant mass from the soil matrix. The accompanying Supplementary Information includes the contribution network diagrams for both alternatives. In EXC, 72.3% of the overall single score impact is due to the thermal treatment of soil. In the MPE alternative, the use of electricity by the system during operation accounts for 48.4% of the overall single score impact.