Green and Sustainable Remediation CLICK TO EDIT MASTER TITLE STYLE Presented by: Amanda Ludlow, Principal Scientist ROUX ASSOCIATES, INC. Environmental Consulting Roux Associates, Inc. & Management June 7, 2017
Green and Sustainable Remediation Definitions U.S. Environmental Protection Agency “The practice of considering all environmental effects of remedy implementation and incorporating options to maximize net environmental benefit of cleanup actions.” Interstate Technology Regulatory Council (ITRC) “The site -specific employment of products, processes, technologies, and procedures that mitigate contaminant risk to receptors while making decisions that are cognizant of balancing community goals, economic impacts, and net environmental effects. New York State “The practice of considering all environmental effects of remedy implementation and incorporating options to minimize the environmental footprint of cleanup actions.”
Why GSR ? Improved stakeholder engagement Community benefits Educational opportunities Collaboration Simplified, reproducible results Quantify desired metrics Reduced impacts Emissions / greenhouse gases Energy/Water/Waste Ecosystems
Sustainable Remediation
Brief History 2006 – Sustainable Remediation Forum (SURF) formed; SURF formally integrates sustainable principles, practices, and metrics into remediation projects and works to foster GSR on a national and international basis 2007 – Association of State and Territorial Solid Waste Management Officials (ASTSWMO) creates Green Cleanups Task Force which advocates for what are referred to as “greener cleanups” 2008 – EPA develops The Green Remediation Technical Primer and forms the EPA/State Greener Cleanup Working Groups 2010 – NYSDEC issues DER-31 which establishes a preference for remediating sites in the most sustainable manner while still meeting all legal, regulatory and program requirements 2011 – Interstate Technology Regulatory Council (ITRC) publishes Green and Sustainable Remediation Technology Overview (GSR-1) and GSR Technical/Regulatory Guidance (GSR-2) 2013 – American Society of Testing and Materials (ASTM) publishes two standard guides: Greener Cleanups (E2893) , Integrating Sustainable Objectives into Cleanup (E2876) , Best Management Table in Excel format
GSR Sustainability Environmental Economic Social
Core Elements Energy Minimize energy use Increase renewable energy Material Air Minimize emissions & Waste Minimize water use Preserve water quality Conserve material resources Minimize waste Protect land and ecosystem services Land & Water Ecosystems
GSR Planning Level 3 BMPs + Advanced Evaluation Closure Increasing Tool Complexity Level 2 BMPs + O&M Simple Evaluation and Data Needs Level 1 Construction Best Management Practices Remedial Design Remedy Selection Investigation
Best Management Practices (BMPs) Project Planning • Green Remediation BMP Fact Sheets (13) EPA Sampling & Analysis • Sustainability Concepts in Decision-Making Site Preparation & Restoration • Standard Guide for Integrating Water Quality Sustainable Objectives ASTM into Cleanup • Standard Guide for Greener Cleanups Residual Management BMPs Materials • Green and ITRC Sustainable Remediation: A Vehicles and Equipment Practical Framework Power and Fuel • Framework for SuRF Integrating Sustainability into Buildings Remediation Projects
GSR Tools – Level 1 EPA fact sheets Introduction to BMPs Site investigation Excavation Pump and treat Bioremediation SVE & Air Sparging Clean fuel and emission technologies Renewable energy
BMP Examples Minimize Identify Engage impacts to recycling/ stakeholders natural reuse options resources Use local Reuse Maximize labor and unimpacted renewable resources soil energy use
GSR Tools – Level 2 California Department of Toxic Substances Control Green Remediation Evaluation Matrix (GREM) Metrics Option 1 - SVE Option 2 - MNA Relative Importance Yes/No Score* Yes/No Score* Air emissions Yes 2 Yes 1 1 Solid waste Yes 2 Yes 1 1 Wastewater Yes 1 Yes 1 1 Noise/odor/vibration Yes 3 Yes 1 1 Land stagnation Yes 1 Yes 3 2 TOTAL 9 7 WEIGHTED TOTAL 10 10 *Scale of 1 to 3 where 1 is favorable (more green or sustainable) in this example http://www.dtsc.ca.gov/omf/grn_remediation.cfm
GSR Tools – Level 3 Carbon footprint calculators Remedy footprint tools Air Force Sustainable Remediation Tool (SRTTM) Navy and Army Corps of Engineers SiteWiseTM Other tools Net environmental benefits analysis tools Life-cycle assessment (LCA) tools
SiteWise TM Equipment Use Residual Transportation Handling Material Resource Model Production Consumption Water Emissions Energy Used Consumption
SiteWise TM Input Sheets MATERIAL PRODUCTION Materials Production WELL MATERIALS Well Type 1 Input number of wells Input depth of wells (ft) Well Construction Choose specific casing material schedule from drop down menu Sch 40 PVC Choose well diameter (in) from drop down menu 1/8 Input total quantity of Sand (kg) Input total quantity of Gravel (kg) Treatment Chemical Input total quantity of Bentonite (kg) Input total quantity of Typical Cement (kg) Input total quantity of General Concrete (kg) Input total quantity of Steel (kg) Treatment Media TREATMENT CHEMICALS & MATERIALS Treatment 1 Input number of injection points Choose material type from drop down menu Hydrogen Peroxide Construction Materials Input amount of material injected at each point (pounds dry mass) Input number of injections per injection point TREATMENT MEDIA Treatment 1 Well Decommissioning Input weight of media used (lbs) Choose media type from drop down menu Virgin GAC CONSTRUCTION MATERIALS Material 1 Silt Curtains Choose material type from drop down menu HDPE Liner Input area of material (ft2) Input depth of material (ft) Bulk Materials WELL DECOMMISSIONING Well Type 1 Input number of wells Input depth of wells (ft) Input well diameter (in) Choose material from drop down menu Soil SILT CURTAIN MATERIALS Curtain 1 Input length or perimeter of silt curtain (ft) www.navfac.navy.mil/navfac_worldwide/sp Input depth of silt curtain (ft) ecialty_centers/exwc/products_and_services Material 1 BULK MATERIAL QUANTITIES Choose material from drop down menu Acetic Acid /ev/erb/gsr.html Choose units of material quantity from drop down menu pounds Input material quantity
Interpretation – Overall Results Excavation Hot Spot Excavation & Capping 10,000,000.00 1,000,000.00 100,000.00 10,000.00 1,000.00 100.00 10.00 1.00 0.10 0.01 MMBTU MWH gallons metric ton metric ton metric ton metric ton metric ton metric ton metric ton Total Energy Electricity Water GHG Onsite NOx Onsite SOx Onsite Total NOx Total SOx Total PM10 Used Usage Consumption Emissions Emissions Emissions PM10 Emissions Emissions Emissions Emissions
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