Rialto Bioenergy Facility Integrated Organics Recycling and Bioenergy Production

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1 Rialto Bioenergy Facility Integrated Organics Recycling and Bioenergy Production

2 Agenda Drivers for Food Waste Diversion, Biosolids Processing, and Bioenergy Centralized Approach to Organics Recycling A sustainbale outlet for Southern California Biosolids to produce: Class A biosolids Biochar Renewable energy Opportunity: Divert 300 TPD of Biosolids to Rialto Bioenergy Facility to Develop a Sustainable Local Outlet and Recover Renewable Energy from Biosolids

3 California Mandates Food Waste Diversion from Landfill Commercial Organics Residential & Commercial Organics AB 1826 Commercial Organics AB 1594 Green Waste ADC Diversion Credit Eliminated AB 876 Organics Infrastructure Plan SB 605 Short Lived Climate Pollutants {Eliminate Organics from Landfills by 2025} SB 1383: Goal 75% landfill diversion by 2025

4 California Mandates Bioenergy Production SB 1122 requires 110 MW renewable electricity procured from bioenergy

5 Biosolids Land Application & Landfilling is Increasingly Difficult 797,000 dry tons of Biosolids in /3 rds land applied, 1/3 rd landfilled Increasing bans and regulations on land application

6 Rialto Bioenergy Process Diagram FOOD WASTE BIOSOLIDS

7 Rialto Is A Long Term Renewable Energy Outlet That The Region Needs

8 Regional WWTPs Moving Towards Innovative Sustainable Outlets Rialto is only Biofuel outlet

9 Rialto Bioenergy Facility Status Task Status Site Owned By Anaergia Complete Lease Agreement with City of Rialto Complete CEQA/NEPA In Progress, Completion Feb Air Permit In Progress, to be filed in Feb 2018 Feedstock - Food Waste #1 In Progress, Completion Oct Offtake #1 Electricity In Progress, Mandatory Process Offtake #2 Biomethane In Progress, Completion Nov Feedstock #2 300 TPD Biosolids Need by Q Grant Source Amount ($M) Use U.S. Department of Energy 17 Dryer & Pyrolysis Calrecycle 4 Anaerobic Digester California Energy Comission 3 Biomethane for Pipeline

10 Grant from U.S. Department of Energy (up to $17M) for Biosolids Processing

11 Organics Recovery Options Source Separated Organics Centralized Processing Rely on human behavior Outreach, education Dedicated collection New bins No behavior change Same collection routes Same trucks

12 Anaergia OREX 1000

13 Organics Extrusion Benefits Flexible to process any waste Process any contamination level Remove contaminants with filtering action of plug (vs. hammer or shear) No dilution required Produce clean organic stream suitable for digestion or compost

14 OREX in San Francisco 14

15 Organics Extracted from MSW in San Francisco MSW WET FRACTION DRY FRACTION 15

16 Organics From MSW Delivered to Anaerobic Digesters at EBMUD 16

17 Centralized Organics Management Offers Flexible Outlets Wastewater Treatment Plant OREX Wet Fraction Dry Fraction Merchant Digestion Plant Compost 17

18 Flexible to Produce Cake or Slurry 30% Solids 20% Solids 14% Solids 18

19 Centralized Organics Recovery is More Cost Effective Than SSO Source Separated Organics Centralized Processing SSO Collection, Processing, and Transfer to WWTP or Compost Site $/ton Diverted CAPEX 31 OPEX for Processing 21 Collection and transfer 210 Outreach, education, enforcement 16 Composting Tip Fee Less Current T&D to Landfill MSW Centralized Processing, Organics Recovery to WWTP $/ton Diverted CAPEX 21 OPEX for Processing 34 WWTP Tip Fee Less Current T&D to Landfill 3 58 Source: Third party study by Golder Associates Inc. for Northern California Solid Waste Hauler

20 Organics Diversion to Anaerobic Digestions Reduces GHG Footprint

21 OREX 1000 in Italy - SSO

22 OREX1000 in South Africa 22

23 OREX 1000 in South Africa - MSW

24 Rialto BioEnergy Facility

25 Rialto Bioenergy Facility Site

26 Rialto Bioenergy Facility Site RBF Rialto WWTP

27 Rialto Bioenergy Facility Site Aerial Photo of the Mothballed Enertec Facility

28 RBF Leverages Existing Assets

29 Rialto Bioenergy Facility Site Rendering of the Future Rialto Bioenergy Facility Site at Full Build Out Biogas Upgrader Reception Reception Storage Silos Anaerobic Digester Dryers Product Storage Silos CHP Engines/ Pyrolyzer WWTP

30 Reception Bins Reception

31 Reception Bins

32 Organics From MSW Delivered to Anaerobic Digesters 32

33 Cake & Organics High Pressure Piston Pumps

34 Storage Silos

35 OREX Wet Fraction

36 Organics Extraction (1) OREX Wet Fraction Polished at Rialto (2a) DYNAMIC CYCLONE Organics Polishing (2b) HYDROCLYCONE Anaerobic Digestion (3) DIGESTERS MSW Wet Wet fraction Dry fraction Floatable Material Grit >90% organics recovered >90% floatables removed >85% grit removed Clean Digestate 36

37 Organics Polishing System (OPS) Dynamic Cyclones Dynamic Cyclones

38 Organics Polishing System (OPS)

39 Organics Polishing System (OPS)

40 Organics Polishing System (OPS) Unpolished Organics Polished Organics

41 Organics Polishing System (OPS) - HydroCyclone & Grit Washer HydroCyclone

42 Organics Polishing System (OPS) - HydroCyclone & Grit Washer

43 Organics Polishing System (OPS) - HydroCyclone & Grit Washer Grit Discharge 1. Organics Feed Digesters

44 High Solids Anaerobic Digester (HSAD) Anaerobic Digesters

45 High Solids Anaerobic Digester (HSAD) High Solids Food Waste Digester Dagenham, UK

46 High Solids Anaerobic Digester (HSAD) Energy efficient high solids electric mixers Mixer Access Easy Access for Repositioning or Service without Biogas Loss Permanent Magnet Electric Mixer Service Box Pro 46

47 Solids Belt Dryer Dryers

48 Solids Belt Dryer

49 Solids Belt Dryer

50 Pyrolyzer Pyrolyzer

51 Pyrolyzer Biochar derived from pyrolysis

52 Bio-oil derived from pyrolysis Pyrolyzer

53 Combined Heat & Power (CHP) Engine Generators CHP Engines

54 Combined Heat & Power (CHP) 2X 800 kw Biogas CHPs in CA Engine Generators

55 Pyrolysis Increases Biogas Production and Improves Biosolids Value: Less Residual Mass, Higher Value, More Biogas Biogas ANAEROBIC DIGESTER Cake DRYING Dry Solid PYROLYSIS Char Gas Oil

56 Pyrolysis at Encina Wastewater Authority 56

57 Pyrolysis Increases Biogas Production and Improves Biosolids Value: Less Residual Mass, Higher Value, More Biogas N P K Dried Biosolids Biochar GREATER BIOSOLIDS QUALITY: Concentrates nutrients Increases biogas by >25% Reduces solids export by 8x Stabile product: less dust & odor Slow release nutrients, no leaching 57

58 Co-digesting Sludge with Pyrolysis Oil 58

59 Biochar

60 Bio-oil derived from pyrolysis Pyrolyzer

61 Pyro-oil Produces Biogas in Digesters Biogas (ft^3) % increase from control Cumulative Gas Production vs Time Dig. 1 (Control) Dig. 2 (Biosolids Oil) 34% increase from control 48% increase from control Time (Days)

62 Sludge Pyrolysis Improves Resource Recovery: More Energy, Fewer Solids, Higher Value MORE ENERGY Increases biogas production by ~25% through co-digestion of oil & gas FEWER SOLIDS Reduces mass of dewatered sludge by ~8X HIGHER VALUE Solid char has higher fertilizer value

63 Thank You Yaniv D. Scherson, Ph.D., P.E. Managing Director, Western U.S.