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ADA Technologies, Inc. Stabilization of Mercury and Mercury Containing Waste Cliff Brown / Tom Broderick ADA Technologies, Inc. Carl Ragan Perma-Fix Environmental.

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Presentation on theme: "ADA Technologies, Inc. Stabilization of Mercury and Mercury Containing Waste Cliff Brown / Tom Broderick ADA Technologies, Inc. Carl Ragan Perma-Fix Environmental."— Presentation transcript:

1 ADA Technologies, Inc. Stabilization of Mercury and Mercury Containing Waste Cliff Brown / Tom Broderick ADA Technologies, Inc. Carl Ragan Perma-Fix Environmental Services, Inc. Breaking the Mercury Cycle: Long Term Management of Surplus, Recycled Mercury & Mercury Bearing Waste Boston, MA May 1-3, 2002

2 ADA Technologies, Inc. Presentation Outline  Regulatory Framework  Background & Related Work  Elemental Mercury Treatment  >260 mg/kg Waste Treatment  Summary

3 ADA Technologies, Inc. Two Classes of Mercury Contaminated Waste to be Addressed Mercury Content <260 mg/kg>260 mg/kgElemental Must pass TCLP Treatment Standard = Retort & Amalgamation Of Condensates Candidate for Direct Stabilization Treatment Standard = Amalgamation Focus for Presentation

4 ADA Technologies, Inc. ADA Mercury Control Technologies TechnologyGasLiquidSolid Disposable sorbentXX Regenerable sorbentXX Photocatalyst X Amalg./Stabilization XX+ Red: Current Research & Development Project Blue: Pilot Demonstration Green: Commercial Product Media

5 ADA Technologies, Inc. Mercury Related Work Ongoing at ADA since 1992 System: 10ft 3 mix skid designed, constructed & installed jointly by ADA and Perma-Fix Technology Licensed to Perma-Fix 2001 MER-01 DOE Contract U.S. Patent 09/258,659ADA Internal FundsElemental Hg Waste Funding Vehicle Products

6 ADA Technologies, Inc. Mercury Related Work Ongoing at ADA since 1992 (cont.) Application for Variance to be submitted to U.S. EPA Implementation in 90 ft 3 mixer initially for Storm Sewer Sediment – Normally run >5 ft 3 MER-04 Technology to be licensed to Perma-Fix Internal ADA and Perma-Fix Funds U.S. Patent PendingDOE SBIR (DE-FG03-99ER82722) >260 ppm Hg Waste Funding Vehicle Products

7 ADA Technologies, Inc. Elemental Mercury Stabilization

8 ADA Technologies, Inc. Hg 0 Stabilization Produces Three Potential Products Elemental Hg Reagents & Mixing Primary Product Patented Process Processing System Installed at Perma-Fix M&EC Facility (Addressed in following slides) continued #1

9 ADA Technologies, Inc. Hg 0 Stabilization Produces Three Potential Products (cont.) Reagents & Processing Micro-encapsulated Product Reagents & Processing Advanced Leach Testing Activity Conducted with EPA, DOE, University of Cincinnati continued Macro-encapsulated Product #2 #3

10 ADA Technologies, Inc. Hg 0 Stabilization Unit Designed and Installed at Perma-Fix Facility  Design, construction, acceptance testing in Denver - Shipped Jan. ‘02  System installed and proof tested at M&EC facility in Oak Ridge - March ‘02  First waste to be processed in May ’02  TDEC approved permit modification at Perma-Fix

11 ADA Technologies, Inc. Process is Based on ADA Patent; Meeting Treatment Goals is “Art”

12 ADA Technologies, Inc. Mercury Treatment Skid Installed at Perma-Fix M&EC Facility Oak Ridge, TN

13 ADA Technologies, Inc. Operation produces a free- flowing product (Avg. Diam. 3/8”)

14 ADA Technologies, Inc. Summary of Results Analytical LANL WasteFernald WasteDemo Run Test Results #1 Results Mercury (TCLP)0.048 mg/L0.039 mg/L0.016 mg/L Free Liquid byno free liquids Paint Filter pH, Saturated Paste Cyanide, totalNon-detect Sulfide, reactive0.3 mg/kg52 mg/kg -- Mercury Vapor<0.050 Conc. (mg/m 3 )

15 ADA Technologies, Inc. Summary  Patented process produces mercury sulfide that meets the TCLP limit for mercury  If the cost/benefit exists, process can be tailored to produce waste form with increased pH stability  Process equipment is installed and ready for operation  Perma-Fix operators have been trained to run equipment  ADA personnel will be at Perma-Fix for first elemental mercury treatment run this spring

16 ADA Technologies, Inc. Treatment of >260 ppm Mercury Material

17 ADA Technologies, Inc. Mercury Stabilization for Granular Matrices with >260 ppm Mercury Contamination  Significant modification of process for elemental mercury  Multiple funding sources  Process demonstrated with wide variety of materials –Surrogate sludges with / without iron –Surrogate soils spiked with Ba, Cr, Cu, Pb –Storm Sewer Sediment (BSSS)  Must be fine-tuned to specific contents of waste stream

18 ADA Technologies, Inc. Stabilization of Oak Ridge Storm Sewer Sediment  BSSS inventory in Oak Ridge approximately 235,000 kg; much of this contaminated with mercury  Variance being pursued to treat this material via direct stabilization  Treatability studies have verified treatment approach

19 ADA Technologies, Inc. Characterization of BSSS Hazardous Constituent Average Conc. (ppm) Total Organic Carbon21,000 PCB (Total)20 Cyanide (Total)0.1 Mercury14,600 * * Highest Mercury Conc. Detected, 55,900 ppm

20 ADA Technologies, Inc. Characterization of BSSS (cont.)

21 ADA Technologies, Inc. Process Summary  Four step process: Pretreatment Sulfurization Neutralization Granulation  Test matrix evaluated: Reagent cocktail composition Reducing agents Neutralizing agents

22 ADA Technologies, Inc. BSSS-1 Lab Mixer & Samples Before After

23 ADA Technologies, Inc. Treatability Study Results

24 ADA Technologies, Inc. Planned Operation at Perma-Fix

25 ADA Technologies, Inc. BSSS-1 Full-Scale Mixer at M&EC

26 ADA Technologies, Inc. Conclusions & Path Forward  Treatability study has identified formulation that meets Hg UTS (0.025 mg/L)  Finish testing alternate treatment recipes  Finalize treatment protocol and variance application  Submit application to U.S. EPA for approval  Install full-scale treatment equipment  Start scale-up mixes w/ surrogate material  Start treatment of BSSS-1 material in 2002


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