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HomeMy WebLinkAboutItem 9 PPP 11-04-2020 Operations Committee - Biothermal Conversion RFI Update Biosolids Thermal Conversion RFI Update Deirdre ingman Operations Committee - November 4, 2020 44" 'r IN S A N 1 rq T� a7l.r�sl Uh- -O h ACK I n O��L� M,cW� T�NG THE ENv\e V 2019 Strategic Plan : Blosolids Policv Par)er • Recognized • Growing interest for organics management • Rising concerns: emerging contaminants such as MEN polyfluoroalkyl substances (PFAS) CEO • Biosolids Master Plan: emerging market _ j opportunities • Issue a request for information (RF1) • Research and evaluate available emerging market r • Biosolids-to-energy options or other biosolids recycling operations • Potentially develop scope of work 2 L: _A • Onsite — Anaerobic Digestion (Current Practice) • Solids (sludge) to Biogas • Methane Recovery • Biogas to Electricity • Offsite — Biosolids Thermal Conversion (BTC) • Biosolids (post digester treatment) • Pyrolysis, Gasification, Oxidation • Biosolids to Electricity, Biochar, • Biochar and Oil High • Bio-oil • Gas to fuel process Temperature • Electricity (>400°C) • Ash for cement 3 State Water Boardmordered y PFAS Sampling Biosolids Contracts and Options Timeline Q2 2020 Q3 2020 Q4 2020 Q1 2021 Q2 2021 Q3 2021 lie SWRCB T PFAS Order PFAS Sampling PFAS Results V) 2120 Qtrly 10/20- 6/21 Q3 2021 LL a i Project Phasi' ng & t -A t_4 Cons 'iderat'ions -� • Biosolids Thermal PFAS Sampling Conversion RFI 1-2 Small Tonnage • Haz Waste Landfill List BTC contracts - PFAS destruction demo Phase 4 Phase 3 I Implement Phase 2 Assess _ � � Phase Evaluate Needs Potential larger Performance scale BTC Gather • PFAS Regulatory contract if Framework needed to meet Information • Decide how to regulations & Establish best mitigate Options risk • Potentially update Biosolids Master Plan 5 -`so*— BTC RF1 Completed �= _ 5 Respondents • •mp 4 with appropriate Full >400thermal temperatures • 3 with proven scalable technologies term • 2 with short-term Timing demonstration opportunities that are already funded to minimize OCSD risk Viable Criteria for Initial BTC Facility 6 Availability •. -� Timeframes -� ' • Short-term • Responses Availability • Anaergia • June 2021 Pyrolysis commissioning 150 tpd —300-600 tpd Pyrolysis Only 60 miles from OCSD 4 trucks 50-100% of • Faster expansion with existing permits MD tonnage Non-Guaranteed Guaranteed tons, tons, easier harder contract = off-ramps, Low Risk commissioning Holloway All permits expected by December 2020 up to 100 tpd —250-400 tpd Gasification - Construction begins by Q3 2021 4 trucks 50-67% of Pyrolysis "'200 miles from OCSD MD tonnage • Expansion opportunities (300 tpd ea.) Guaranteed tons, harder off-ramps, commissioning OCSD Biosolids Production: 6-day avg: up to 690 tpd, 27 trucks (current truck loading schedule); 7-day avg: up to 600 tpd, 24 trucks 7 _ y EBTC Next S , rBiosolids Contracts and options Timeline Q2 2020 Q3 2020 Q4 2020 Q12021 Q2 2021 Q3 2021 RFI Annual � Board BTC RFI Results Contracts Award 122020 Biosolids Demo Projects O 4/20 to EMT / 2/2021 Update tune 2021-May2026 10/20 6/2022