Jacobs Solutions Inc. · NYSE:J

Jacobs Solutions — Technical Presentation (March 2023)

51 slides from Jacobs Solutions's technical presentation, Mar 2, 2023

  1. Slide 1: Jacobs In the kNOW

    Jacobs In the kNOW For the best viewing experience, please use Microsoft Teams desktop or mobile app. If you are on a browser, we recommend that you use Google Chrome. Please note that this session is automatically recorded for marketing purposes. To enable a more interactive session, the live Q&A a

  2. Slide 2: MABR technology: The New Double Triple Threat

    MABR technology: The New “Double Triple Threat” for Energy, Capacity, and N2O Emission Benefits In the kNOW Webinar Series Mar 2, 2023

  3. Slide 3: Agenda

    Agenda Introductions MABR Technology: Applications and Benefits Case Study #1 Ejby Mølle WRRF, Denmark Case Study #2 Elmira WWTP, Canada Live Q&A 3 ©Jacobs 2023

  4. Slide 4: Introduction

    Introduction Colin Newbery

  5. Slide 5: About Jacobs In the kNOW webinars

    Introductions by Colin Newbery About Jacobs In the kNOW webinars Introduction Delivers the latest information on the hottest topics trending in the water sector. Each webinar includes case studies and firsthand experiences with the featured topics presented by the foremost water industry experts. Th

  6. Slide 6: Meet our presenters

    Introductions by Colin Newbery Speakers Meet our presenters Facilitator Speakers 6 ©Jacobs 2023

  7. Slide 7: Meet our presenters

    Introductions by Colin Newbery Our speakers Meet our presenters  28 years experience  12 years experience  Global leadership in Process  Process leadership with Engineering at Jacobs technologies including MABR, InDENSE, others  Studies and designs for over 300 treatment plants globally  Proce

  8. Slide 8: MABR Applications and benefits

    MABR Applications and benefits

  9. Slide 9: MABR Background – What is it??

    MABR Background – What is it??  Membrane Aerated Biofilm Reactor  Bundles of hollow fibre gas permeable membranes through which air/O2 is passed - Biofilm growth on exterior of fibre - Microbiology respires directly from Individual fibre lumen surface 9 ©Jacobs 2023

  10. Slide 10: MABR Background – Who are the Manufacturers?

    MABR Background – Who are the Manufacturers?  Veolia Water Technologies and Solutions (previously SUEZ) − Product name: ZeeLung  Dupont Water Solutions (previously OxyMem™) − Product name: OxyFAS and OxyFILM  Fluence (previously Emefcy) − Product name: Aspiral and Subre 10 ©Jacobs 2023

  11. Slide 11: MABR Background – How is it typically applied?

    MABR Background – How is it typically applied?  Typically installed in anoxic/anaerobic zones in “hybrid” configuration − MABR biofilm operates in concert with suspended growth activated sludge  MABRs most cost effectively target nitrification  Configuration allow simultaneous nitrification/denit

  12. Slide 12: MABR Background – How it works and what are the Benefits

    MABR Background – How it works and what are the Benefits  Technology is very analogous to integrated fixed film activated sludge (IFAS), but with key differences: IFAS Biofilm MABR Biofilm − Countercurrent vs. co-current biofilm Membrane IFAS Media Surface − O2 delivered to nitrifying biomass MABR

  13. Slide 13: MABR Benefits – Oxygen Transfer Efficiency

    MABR Benefits – Oxygen Transfer Efficiency  Let’s first look at the efficiency of conventional aeration Often 50% of energy costs! • Oxygen transfer efficiency (OTE) only 10 – 15% • Most O2 unutilized • Delivery point is at the bottom of tank (relatively high pressure = high energy) • High energy d

  14. Slide 14: MABR Benefits – Oxygen Transfer Efficiency

    MABR Benefits – Oxygen Transfer Efficiency  High specific surface area allows O2 to be delivered directly to biomass  Theoretically up to 100% OTE  In practice, up to ~40 -50% OTE − Requires purge to maintain driving force for O2 transfer − High OTE is independent of tank depth  Backpressure is

  15. Slide 15: MABR Benefits – Oxygen Transfer Efficiency

    MABR Benefits – Oxygen Transfer Efficiency  Conventional aeration is inefficient and usually the largest energy consumer  MABR aeration efficiency is 3 or 4 times better than fine bubble aeration 15 ©Jacobs 2023

  16. Slide 16: MABR Benefits – Increased Process Capacity

    MABR Benefits – Increased Process Capacity  MABRs operate on the same principle as other hybrid technologies such as IFAS  Conventional systems typically require a minimum solids retention time (SRT) to maintain growth of nitrifying organisms − Greater bioreactor volume ($$)  With hybrid/MABR sys

  17. Slide 17: MABR Benefits – Reduced GHG Emissions

    MABR Benefits – Reduced GHG Emissions  Energy efficiency of MABR can assist in  Scope 1: Direct emissions from reducing Scope 2 emissions facility (e.g., methane, N2O)  Scope 2: Indirect emissions from − Depends upon electricity generation electricity use method (e.g., fossil fuel or “green”)  S

  18. Slide 18: Case Study: Ejby Mølle WRRF Full-scale Demonstration

    Case Study: Ejby Mølle WRRF Full-scale Demonstration

  19. Slide 19: Background on VCS Denmark

    Background on VCS Denmark  VCS Denmark est. 1853  Staff of 200+ providing water supply and wastewater conveyance/treatment, treatment for pop. >400,000  Operate: − 6 WTPs − 8 WRRFs − 3,400 km of conveyance 19 ©Jacobs 2023

  20. Slide 20: Background on Ejby Mølle WRRF – Journey to Energy Self Sufficiency

    Background on Ejby Mølle WRRF – Journey to Energy Self Sufficiency  415,000 population equivalent facility  Advanced BNR facility (Bio- P and N-removal)  76% energy self-sufficient in 2011  By 2018: − Above 110% electricity energy self-sufficiency − Above 180% energy self- sufficiency (incl. Hea

  21. Slide 21: VCS Denmark Imperatives and Constraints

    VCS Denmark Imperatives and Constraints  Automated facilities, mostly without onsite operations personnel  Energy Efficient  High wet weather flows, low temperatures  Strict effluent requirements, resource recovery, footprint 21 ©Jacobs 2023

  22. Slide 22: Three Year Demonstration Study Initiated in Summer 2018

    Three Year Demonstration Study Initiated in Summer 2018 22 ©Jacobs 2023

  23. Slide 23: Demonstration Setup: Two configurations – Two vendors

    Demonstration Setup: Two configurations – Two vendors In Basin Sidestream Tank 23 ©Jacobs 2023

  24. Slide 24: Demonstration Setup

    Demonstration Setup 24 ©Jacobs 2023

  25. Slide 25: Demonstration Setup allowed for Continuous Data Collection

    Demonstration Setup allowed for Continuous Data Collection In Basin Biofilm- debris Sidestream Tank OTR Nitrous oxide Nitrification rates emissions Denitrification rates OTR Nitrous oxide emissions + Biweekly laboratory analyses 25 + Biofilm sampling ©Jacobs 2023

  26. Slide 26: Demonstration Setup allowed for Continuous Data Collection

    Demonstration Setup allowed for Continuous Data Collection Liquid NH4 ORP N2O Gas O2 CO2 N2O 26 ©Jacobs 2023

  27. Slide 27: Ease of Implementation was Important

    Ease of Implementation was Important 27 ©Jacobs 2023

  28. Slide 28: Interference of the deeply anaerobic conditions of the feed!

    Interference of the deeply anaerobic conditions of the feed! Chemical analysis confirms precipitation: - Copious amounts of Iron (and suspected high levels of S (FeS) - Marginal amounts of P, Ca, Mg, Al, Zn 28 ©Jacobs 2023

  29. Slide 29: Solution: For Demonstration, Control ORP to more typical levels

    Solution: For Demonstration, Control ORP to more “typical” levels  Implement fine bubble aeration to control ORP to approximately ~-200 mV, typical of BNR systems (September 2019)  With modules scaled, suppliers worked with different approaches to bring demonstration back on track SUEZ OxyMem  Co

  30. Slide 30: Summary of Later Studies and Successful Operation

    Summary of Later Studies and Successful Operation

  31. Slide 31: Debris Accumulation – Minimal Considering Conditions

    Debris Accumulation – Minimal Considering Conditions  Detailed visual inspection carried out after ~18 SUEZ OxyMem months of operation  Challenging conditions: − Influent screening non- ideal − Large open tanks at treatment plant − Facility surrounded by forest 31 ©Jacobs 2023

  32. Slide 32: Oxygen Transfer – Benchmark Results

    Oxygen Transfer – Benchmark Results Uri-carreño, N., Nielsen, P.H., Gernaey, K. V, Flores-alsina, X., 2021. Science of the Total Environment Long-term operation assessment of a full-scale membrane-aerated bio fi lm reactor under Nordic conditions. Sci. Total Environ. 779, 146366. https://doi.org/10.

  33. Slide 33: Nitrous Oxide Emissions

    Nitrous Oxide Emissions  Previous studies indicate MABR has substantially lower N2O generation compared to other biofilm-based technologies (i.e., MBBR)  However, previous study only looked at liquid side dissolved N2O generation and not possible back diffusion of N2O into offgas From: Sabba, F.,

  34. Slide 34: Nitrous Oxide Emissions – Ejby Mølle WRRF Demonstration

    Nitrous Oxide Emissions – Ejby Mølle WRRF Demonstration Uri Carreño, N., Nielsen, P. H., & Almind-Jørgensen, N. (2020). N2O Emissions from Ejby Mølle. In The Danish Environmental Protection Agency (Issue N2O measured August).  Analyses show approx. 1% of N-removal is through N2O pathway  Uri Carre

  35. Slide 35: Case Study: Elmira WWTP Full Scale Implementation

    Case Study: Elmira WWTP Full Scale Implementation

  36. Slide 36: Elmira Wastewater Treatment Plant

    Elmira Wastewater Treatment Plant  Waterloo, Ontario, Canada  Currently serves population of ~12,000  Rated flow capacity: − Average: 7,800 m3/d − Peak: 19,500 m3/d (2.5 PF)  Unique raw wastewater characteristics: − High industrial contributions − High I&I 36

  37. Slide 37: Elmira WWTP

    Offsite Onsite Elmira WWTP Equalization Equalization Industrial Discharge Fine Coarse Vortex Grit Screening Influent Screening Removal Raw Pumping Wastewater Grit to Screenings to Screenings to Landfill Landfill Landfill Mixed Liquor Recycle Primary Clarifiers FeCl3 FeCl3 Secondary Clarifiers Tertia

  38. Slide 38: Project Driver: Secondary Treatment Capacity Limitations

    Project Driver: Secondary Treatment Capacity Limitations  Raw wastewater characteristics differ from the plant’s original design basis: − Raw wastewater is highly concentrated due to local industries − Extreme peak flows due to inflow and infiltration exceed secondary treatment capacity  These cha

  39. Slide 39: MABR Benefits at Elmira WWTP

    MABR Benefits at Elmira WWTP  Increase nitrification capacity and performance due to the retention of attached nitrifiers in the MABR biofilm  Increase secondary treatment capacity by allowing the system to operate at lower mixed liquor concentrations, as a result of lowering the required suspende

  40. Slide 40: Scope of Work – Upgrades in Bioreactor and Blower Building

    Scope of Work – Upgrades in Bioreactor and Blower Building  Eight MABR modules (four per tank), support frames,  Four new MABR blowers access walkways − Two process air blowers  Provision to add two more modules in future − Two scour air blowers  New anoxic zone mixers (end-of-life replacement)

  41. Slide 41: Process Operation and Control

    Process Operation and Control  MABR designed to remove ~23% of raw wastewater ammonia load  Process control: − Process air blower operates continuously; speed based on no. MABRs in service (VFD) − Scour air blower operates intermittently to control biofilm thickness (constant speed) − Off-gas and

  42. Slide 42: MABR Support Structure, Access Walkway, and Piping Manifold

    MABR Support Structure, Access Walkway, and Piping Manifold Courtesy of OxyMem 42

  43. Slide 43: Ready for MABR Installation…

    Ready for MABR Installation… 43

  44. Slide 44: MABR Cassettes

    MABR Cassettes  2.1m high x 2.2 m long x 1.15m wide  Gas-permeable silicone membranes  510 µm inner diameter  1,450 m2 membrane surface area per module 44

  45. Slide 45: MABR Blowers

    MABR Blowers  Two 5 kW positive displacement Aerzen process air blowers (duty/standby)  Two 5 kW positive displacement Aerzen scour air blowers (duty/standby)  Dedicated MABR blowers will provide opportunity for aeration energy optimization 45

  46. Slide 46: Lesson Learned: Understanding Hydraulic Gradeline is Important

    Lesson Learned: Understanding Hydraulic Gradeline is Important  Knowing the range of water surface elevations is key to determine MABR installation elevation in the tank  To achieve desired water level relative to MABR installation: − Proper levelling required for frame installation − “Spacers” in

  47. Slide 47: Lesson Learned: Mixing in MABR Zone is Critical

    Lesson Learned: Mixing in MABR Zone is Critical  Anoxic zone mixers were replaced (end-of- life)  CFD modelling verified new mixers in MABR zone provide adequate flow distribution  Orifices at the bottom of baffle walls were sealed to prevent flow short-circuiting New mixer Sealed orifices 47

  48. Slide 48: Other Project Takeaways…

    Other Project Takeaways…  Bioreactor condition assessment was completed to understand structural/mechanical deficiencies and minimize risk during construction  Equipment pre-purchase is beneficial: − Helped to define the limits of vendor supplied equipment for confident, complete delivery − No sur

  49. Slide 49: Commissioning Approach

    Commissioning Approach MABR Train 1 MABR Train 2 Acceptance testing will be completed in two phases to  90-day biological acclimation  60-day biological acclimation demonstrate the efficiency of a period coinciding with cold period coinciding with cold full-scale installation side by weather opera

  50. Slide 50: Summary

    Summary  MABR is a market disruptive technology  Technology allows for: − Increased process capacity − Reduced energy associated with aeration − Lower N2O emissions and GHGs in general  Now being implemented at a number of locations worldwide  While installations to date have been relatively sma

  51. Slide 51: Thank You!

    7 b Challenging today. waco Ss Reinventing tomorrow.

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