Environmental footprint analysis of site remediation based on the SiteWiseTM
The SiteWiseTM tool was used to assess the environmental footprint of greenhouse gas emissions,energy consumption,water and power resource consumption,and air pollutant emissions systematically and quantitatively in the whole remediation process of one specific contaminated site producing chemical fertilizer in Hebei province,China.Results indicated that the remediation of 21,800m3 of contaminated soil resulted in the emission of 2616t CO2-eq of greenhouse gases,and the consumption of 2.11×1014MJ of energy,1.1×105L of water,and 5.66 × 104kW·h of electrical energy.Additionally,the remediation process led to the 1.58 × 104kg air pollutants emission.Through the renewable energy scenario analysis that comes with the SiteWiseTM tool,we found that when renewable energy was incorporated into the remediation system to reduce carbon by 1％,the cost would increase by 7.58％.Uncertainty analysis results showed that within the 95％confidence interval,greenhouse gas emissions fluctuated in the range of 2194～3086t CO2-eq,energy consumption fluctuated in the range of 1.45×1014～2.46×1014MJ,and relatively low uncertainty was found in this study.
room temperature desorptionchemical oxidationorganic contaminationgreenhouse gascarbon neutrality
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