Quantification of CO 2 Emissions and Energy Consumption from Remediation Systems June 16, EcoVac Services 888-4ECOVAC

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1 Quantification of CO 2 Emissions and Energy Consumption from Remediation Systems June 16, EcoVac Services 888-4ECOVAC

2 What is Green Remediation? Implementation of technologies/approaches that enhance a cleanup project s environmental, social, and economic footprints It is a holistic approach that incorporates sustainability concepts and life-cycle thinking over a broad scope and time horizon California Dept. of Toxic Substances Control

3 Green Remediation/Sustainability Considerations (AFCEE) What are the energy requirements to operate the system throughout the entire life cycle of the remedy? What natural resources are going to be utilized and/or impacted when implementing the remedy (e.g. water, soil)? Are pollutants going to be utilized, created, or simply transferred to another phase as a result of the remedy? How effective will the remedy be versus the impact of the remedy on the environment as a whole? What are the impacts of operating the remedy (e.g., GHG emissions, disturbance of native flora/fauna, social impacts such as noise, etc.)

4 CO 2 /Energy Consumption Calculator Calculates the CO 2 emissions, energy/fuel consumption, and energy/fuel costs associated with: Six Traditional Remediation Methods : Excavation Pump & Treat Soil Vapor Extraction Air Sparging Dual-Phase/Multi-Phase Extraction (DPE/MPE) ISCO Three Mobile Remediation Technologies : Mobile DPE/MPE SURFAC ISCO-EFR

5 CO 2 Calculator Input Parameter Comparison

6 CO 2 Calculator Input Parameter Comparison

7 Dig and Haul (Excavation) Input Parameters Equipment Usage Excavator Track hoe Bulldozer Bobcat Dump truck mileage Driving to/from site (consultant + contractors)

8 Pump & Treat Input Parameters Project duration (years) and uptime (%) Air compressor HP Submersible pumps HP Air stripper HP Other equipment HP Extraction wells (PVC) Underground piping runs (PVC and trenching operations) Drilling operations Equipment shipping Remediation building Driving to/from site (consultant + contractors) Groundwater treatment

9 Soil Vapor Extraction Input Parameters Project duration (years) and uptime (%) Blower HP Other equipment HP Extraction wells (PVC) Underground piping runs (PVC and trenching operations) Drilling operations Equipment shipping Remediation building Driving to/from site (consultant + contractors) Groundwater treatment Offgas (vapor) treatment

10 Air Sparging Input Parameters Project duration (years) and uptime (%) Air compressor HP Other equipment HP Injection wells Underground piping runs (PVC and trenching operations) Drilling operations Equipment shipping Remediation building Driving to/from site (consultant, O&M, and contractors)

11 Dual-Phase/Multi-Phase Extraction (DPE/MPE) Input Parameters Project duration (years) and uptime (%) Pump HP Air stripper HP Other equipment HP Extraction wells (PVC) Underground piping runs (PVC/trenching ops) Drilling operations Equipment shipping Remediation building Driving to/from site (consultant, O&M, and contractors) Groundwater treatment Offgas (vapor) treatment

12 ISCO Input Parameters Injection well/geoprobe injection point installation Driving to/from site (consultant, O&M, all contractors) Volume of chemical oxidant Chemical shipping

13 Mobile DPE/MPE Input Parameters Duration of mobile DPE/MPE Number of extraction events Mileage to/from site Fluids disposal (mileage; recovered fluids pretreatment) Offgas (vapor) treatment

14 SURFAC (Surfactant injection + DPE/MPE) Input Parameters Duration of SURFAC Number of injection events Mileage to/from site Fluids disposal (mileage; recovered fluids pretreatment) Offgas (vapor) treatment Volume of surfactant Surfactant shipping

15 ISCO-EFR (ISCO + DPE/MPE) Input Parameters Duration of EFR Number of events Mileage to/from site Fluids disposal (mileage; recovered fluids pretreatment) Offgas (vapor) treatment Volume of chemical oxidant Chemical shipping

16 Mobile Solution vs. Fixed Remediation System Comparison Newnan, GA NAPL plume (29.54 ft aggregate thickness) removed by mobile DPE/MPE Dissolved benzene plume >6,500 ppb (approx. 85 x 110 ) Benzene concentrations ranged from 9,500 to 35,000 ppb (12 impacted wells) ECOVAC

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18 Mobile Solution vs. Fixed Remediation System Comparison Newnan, GA Proposed Technologies : Fixed System (DPE/MPE) = $300,000 (NOT guaranteed) Mobile Solution (EFR /ISCO-EFR ) = $172,000 (Guaranteed) ECOVAC

19 Mobile Solution vs. Fixed Remediation System Comparison Newnan, GA CO 2 Emissions: Fixed System (DPE/MPE) = 640,013 lbs Mobile Solution (EFR /ISCO-EFR ) = 234,630 lbs (-63%) Electricity Consumption: Fixed System (DPE/MPE) = 190,463 kwh Mobile Solution (EFR /ISCO-EFR ) = 0 kwh (-100%) Fuel Consumption: Fixed System (DPE/MPE) = 997 gal Mobile Solution (EFR /ISCO-EFR ) = 6,717 gal (+573%) 888-4ECOVAC

20 Mobile Solution vs. Fixed Remediation System Comparison Newnan, GA Mobile solution emitted 63% less CO 2 than fixed system (234,630 lbs vs. 640,013 lbs) Mobile solution: 13% less energy cost than fixed system Mobile solution was implemented on a guaranteed basis for 42% less cost than the non-guaranteed fixed system ($173,000 vs. $300,000) ECOVAC

21 ECOVAC Questions? Nick Athens x101

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