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Appendix A Table of Materials of Construction TABLE A-1  Materials of Construction for Major Components of the PCAPP Biotreatment, Water Recovery, and Brine Reduction Systems and Certain Other Equipment Chloride, ppm (or percent when Sulfate, Equipment Description Number Material selected pH noted) ppm Temp, °F Washed agent and water surge drums MV-B02-0101, etc. Titanium, grade 2 5.9% 100 Washed agent and water surge piping Titanium, grade 2 5.9% 100 Agent-water separator tanks MV-B04-0001, etc. Titanium, grade 7 5.9% 100 Agent-water piping Titanium, grade 2 5.9% 2.65% 100 sulfur Washed agent and water booster pumps MP-B02-0101A/B Wetted parts Note: Chlorine and Hastelloy C sulfur essentially totally in organic phase Munition washout station (MWS) wash MV-B04-0001A/B, etc. Titanium, grade 2 >5 <1 <1 100 water collection tanks MWS wash water piping Titanium, grade 2 >5 <1 <1 100 Wash water pumps MP-B04-0105A/B, etc. Wetted parts >5 <1 <1 100 Titanium, grade 2 Collected wash water pumps MP-B04-0105A/B, etc. Wetted parts >5 <1 <1 100 Titanium, grade 2 Agent hydrolyzer tanks MV-B04-0102, etc. Titanium, grade 7 <1 to 12 3.8% <1 200 Agent hydrolyzer piping Titanium, grade 2 or <1 to 12 3.8% <1 200 grade 7 primarily organic phase; water contamination Agent concentrate pumps MP-B04-0002A/B Wetted parts PTFE <1 to 12 44% <1 200 20% sulfur Agent hydrolyzer recirulation pumps MP-B04-0103A/B Wetted parts <1 to 12 3.8% <1 200 Titanium, grade 7 In-line static mixers MF-B04-0102, etc. Titanium, grade 7 <1 to 12 3.8% <1 200 In-line steam mixers MF-B04-0105, etc. Titanium, grade 7 <1 to 12 3.8% <1 200 Agent hydrolysate hold tanks MV-B04-0103, etc. Carbon steel 12 3.8% <1 200 Agent hydrolysate piping Carbon steel 12 3.8% <1 200 Agent hydrolysate pumps MP-B04-0104A?B, etc. Wetted parts stainless 12 3.8% <1 200 steel Agent hydrolysate samplers ML-B04-0101, etc. Piping and valves 12 3.8% <1 200 stainless steel continued 39

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40 REVIEW OF BIOTREATMENT, WATER RECOVERY, AND BRINE REDUCTION SYSTEMS FOR PCAPP TABLE A-1  Continued Chloride, ppm (or percent when Sulfate, Equipment Description Number Material selected pH noted) ppm Temp, °F 30-day storage tanks MT-B04-0101, etc. Carbon steel 12 3.8% <1 100 30-day storage tank piping Carbon steel 12 3.8% <1 100 Bioreactor transfer pumps MP-B04-0106A?B, etc. Wetted parts 316L 12 3.8% <1 100 stainless steel Agent hydrolysate air cooler ME-B04-0004 Carbon steel 12 3.8% <1 100 Spent decon holding tank piping MV-B05--101 MV-B05- Type 316L ss 8 2% <1 90 0201 Spent decon feed pumps MP-B05-0101A/B, MP- Wetted parts 316L ss 8 2% <1 90 B05-0201A/B Sumps MT-B05-0040, etc. Carbon steel 7 <1 <1 80 Immobilized cell bioreactor (ICB) feed MT-B09-0101, etc. Carbon steel tanks ICB feed pumps MP-B09-0101, etc. Wetted parts CD4MCu Brine concentrate (BC) evaporator MV-B12-0002 AL6XN 6.0-7.5 33,236.9 45,145.9 209 BC vapor washer MV-B12-0004 Duplex SS 2101 6.0-7.5 1.72 3.42 210 BC evaporator feed deaerator MV-B12-0001 Duplex SS 2205 5.0-5.5 4,353.7 5,913.7 212 BC feed preheater ME-B12-0001 A/B/C/D/E/ TI Gr 2 Tubes, 5.0-5.5 tube side 4,353.7 5,913.7 207 F/G/H/I/J Duplex 2205 tubesheets, 316Lss shell BC evaporator distillate tank MT-B12-0003 Type 316L ss 6.0-7.5 0 1.688 217 Crystallizer MV-B12-0006 Inconel 625 7.0-8.0 46,861 52,890 225 Crystallizer heater ME-B12-0004 Shell 316L ss, Liquor 7.0-8.0 62,307 54,639 225 boxes Inconel 625, tubes Gr 2 Ti Crystallizer surface condenser ME-B12-0005 Type 316L ss tubes 6.0-7.5 14 14 225 and tube sheet Brine reduction system (BRS) vent ME-B12-0006 Type 316L ss shell 6.0-7.5 0 0 212.7 condenser and tubes Crystallizer steam condensate tank MT-B12-0004 Type 316L ss 6.0-7.5 Crystallizer feed tank MT-B12-0004 Inconel 625 7.0-8.0 46,632 52,633 213 BC evaporator feed tank MT-B12-0001 Fiber-reinforced 6.9-5.6 4,353.7 5,913.7 102 plastic, Derakane 411 resin BRS distillate cooler MT-B12-0001 Frame C steel, plates 6.0-7.5 316L ss BRS sulfuric acid tank ME-B12-0003 C Steel −1.3 BRS distillate carbon filter feed tank MT-B12-0009 Type 316L ss 6.0-7.5 0 0 237 BRS area sump liner MT-B12-0009 AL6XN 5.5-9.0 Filter building sump liner MT-B12-0018 Epoxy-coated C Steel 7.0-8.0 BRS off-gas treatment system (OTS) MT-B12-0021 Fiber-reinforced 1.54 1.54 85 stack plastic BRS belt filter air receiver C Steel BRS distillate carbon filters A/B/C MK-B12-0002A/B/C SA-516 GR 70 C 6.0-7.5 1.55 1.55 85 Steel BRS OTS carbon filters A/B/C MK-B12-0001A/B/C Type 304L ss 1.54 1.54 85 BRS OTS entrainment separator PY-B12-0004 Sch 10 316L pipe 1.54 1.54 85 BRS OTS heater ME-B12-0007 Housing 316L ss, 1.54 1.54 85 Heating element Incoloy 800 BRS OTS fan ME-B12-0007 C steel 1.55 1.55 85 BC evaporator vapor compressor MC-B12-0001 Duplex 2507 0.000 1.712 287 impeller, 316L casing continued

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APPENDIX A 41 TABLE A-1  Continued Chloride, ppm (or percent when Sulfate, Equipment Description Number Material selected pH noted) ppm Temp, °F BRS belt filter MC-B12-0001 Wetted parts 7.0-8.0 62,307 54,639 150 Hastelloy C-276, belt support grating Inconel 625 BC evaporator recirculation pump ML-B12-0001 CD4MCu 6.0-7.5 Crystallizer recirculation pump MP-B12-0002 Inconel 625 7.0-8.0 BC evaporator feed pump MP-B12-0006 CD4MCu 5.0-5.5 BC evaporator distillate pump MP-B12-0001 Type 316 ss 6.0-7.5 BC vapor washer recirculation pump MP-B12-0003 CD4MCu 6.0-7.5 Crystallizer feed pump MP-B12-0004 Inconel 625 7.0-8.0 46,632 48,495 213 BRS steam condensate pump MP-B12-0005 Type 316 ss 6.0-7.5 BRS belt filter feed pump MP-B12-0007 Inconel 625 7.0-8.0 BRS distillate carbon filter feed pump MP-B12-0008 Type 316L ss 6.0-7.5 BRS area sump pump MP-B12-009A/B CD4MCu 5.5-9.0 BRS filter area sump pump MP-B12-0018A/B CD4MCu 5.5-9.0 BC evaporator feed tank agitator MP-B12-0019 Duplex SS 2205 5.0-5.5 Crystallizer feed tank agitator MF-B12-0001 Inconel 625 7.0-8.0 46,632 45,193 213 MF-B12-0004 SOURCE: George Lecakes, PCAPP’s Water Recovery System and Brine Reduction System Briefing, May 1, 2012, and Start-up and Operating Manual, “Brine Reduction System (BRS) Pueblo Chemical Agent Destruction Pilot Plant (PCAPP) Project, 55019650-OP” (undated) and 24852-RD-30G-000-V0001 Revision 00C, September 2012, “Corrosion Monitoring Plan for Resource Conservation and Recovery Act (RCRA) Tank System.”