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Home My WebLink About07.b. Presentation re Applied Research and Planning ProjectsItem 7.b. C entral C ontra C osta S anitary D istrict A ugust 17, 2017 T O : HO NO R A B L E B O A R D O F D I R E C TO R S F RO M :D A N F R O S T, S E NI O R E NG I NE E R RE V I E WE D B Y:D A NE A G E MME L L , P L A NNI NG & D E V E L O P ME NT S E RV I C E S D I V I S I O N MA NA G E R J E A N-MA R C P E T I T, D I R E C TO R O F E NG I NE E R I NG & T E C HNI C A L S E RV I C E S R O G E R S . B A I L E Y, G E NE R A L MA NA G E R S UB J E C T: R E C E I V E I NF O R MAT I O N R E Q UE S T E D AT J A NUA RY 26, 2017 B O A R D W O R K S HO P R E G A R D I NG A P P L I E D R E S E A R C H A ND P L A NNI NG P R O J E C T S , I NC L UD I NG T HE NAT UR E O F T HE P R O J E C T S A ND T HE P I L O T P R O J E C T S TA F F I S C O NS I D E R I NG F O R T HE C O L L E C T I O N S YS T E M. R E V I E W E D B Y R E A L E S TAT E , E NV I R O NME NTA L & P L A NNI NG C O MMI T T E E . A ttached is the "A pplied R esearch at C entral S an" presentation. Strategic Plan Tie-I n G O A L S I X : E mbr ace Technology, I nnovation and E nvir onmental S ustainability Strategy 3 - Encourage the Review and Testing of Promising and Leading Technology AT TAC HM E NT S : D escription 1. A pplied R es earch P resentation August 17, 2017 Regular Board Meeting Agenda Packet - Page 74 of 102 Page 1 of 16 APPLIED RESEARCH AT CENTRAL SAN Dan Frost, Senior Engineer Planning & Applied Research Group August 17, 2017 Board Meeting August 17, 2017 Regular Board Meeting Agenda Packet - Page 75 of 102 Page 2 of 16 STRATEGIC PLAN GOAL SIX: EMBRACE TECHNOLOGY, INNOVATION , AND ENVIRONMENTAL SUSTAINABILITY Strategy 3: Encourage the Review and Testing of Promising and Leading Technology Applied Research is important because it can help to: •Reduce capital costs •Reduce operations costs •Improve reliability & performance •Eliminate hazards & improve safety •Maximize use of existing infrastructure August 17, 2017 Regular Board Meeting Agenda Packet - Page 76 of 102 Page 3 of 16 CENTRAL SAN HAS A HISTORY OF EMBRACING INNOVATION •1980s: Waste-to-Energy System •1997: Largest UV facility in the United States •Early adopter of technologies (e.g. closed-circuit television inspection of sewers, SL-RAT, trenchless construction) •Central San employees take pride in innovations and developing creative solutions August 17, 2017 Regular Board Meeting Agenda Packet - Page 77 of 102 Page 4 of 16 APPLIED RESEARCH & OPTIMIZATIONS COMMITTEE ESTABLISHED August 17, 2017 Regular Board Meeting Agenda Packet - Page 78 of 102 Page 5 of 16 RECENT APPLIED RESEARCH EFFORTS Zeolite-Anammox Pilot Objectives: Evaluate feasibility for main - stream nutrient removal Lead: Regulatory Compliance Centrifuge Pilot Objectives: Test new technology for higher dewatered cake solids Lead: Operations/ Control Systems Ultraviolet Transmittance Objectives: Investigate decreasing UVT trend & identify UVT of different wastewater streams Lead: Planning August 17, 2017 Regular Board Meeting Agenda Packet - Page 79 of 102 Page 6 of 16 RECENT APPLIED RESEARCH EFFORTS Filter Capacity Testing Objectives: Evaluate process capacity & performance of existing filter plant Lead: Planning Caustic Addition Pilot Objective: Determine caustic system design criteria for scrubber pH control & reduce HCl furnace emissions Lead: Regulatory Compliance Sludge Screening Objectives: Remove plastics from sludge to reduce HCl furnace emissions Lead: Capital Projects August 17, 2017 Regular Board Meeting Agenda Packet - Page 80 of 102 Page 7 of 16 CURRENT APPLIED RESEARCH EFFORTS Wet Scrubber / Air Pollution Control Pilot Objectives: Confirm performance & design criteria, evaluate boiler bypass performance & scrubber water potential impacts Lime Reduction Testing Objectives: Reduce furnace loading, reduce operations & maintenance costs Selector Evaluation/SRT Control Objectives: Improve secondary treatment, more consistent sludge volume index (SVI), reduce bulking, increase treatment & filter capacity August 17, 2017 Regular Board Meeting Agenda Packet - Page 81 of 102 Page 8 of 16 A L OOK AHEAD AT APPLIED RESEARCH – POSSIBLE NUTRIENT REMOVAL PILOTS Aerobic Granular Sludge •Innovative nutrient removal process that reduces energy needs & does not require external carbon addition •Sequencing batch reactors integrated into existing continuous flow reactors •Completing feasibility report for pilot, considering inter-agency pilot options Membrane Aerated Bioreactors •Enhance nutrient removal treatment capacity of existing tanks •Possibly reduce plant expansion needs •Membranes in anaerobic zone deliver oxygen to a biofilm attached to the membrane surface •Completing feasibility report for pilot August 17, 2017 Regular Board Meeting Agenda Packet - Page 82 of 102 Page 9 of 16 A L OOK AHEAD AT APPLIED RESEARCH – SOLIDS HANDLING WE&RF HYPOWERS Project •Awarded $1.2M DOE grant in Dec. 2016 •Emerging hydrothermal resource recovery process (converts wastewater solids to biofuel, renewable gas, fertilizers, etc.) •Phase 1: Pilot Planning/Design/Permitting •Phase 2: 3 ton per day pilot •Collaboration with WE&RF, PNNL, Genifuel, Merrick, Tesoro, MicroBio Engineering, SoCal Gas, Utility Advisory Panel, & Others Innovative BioEnergy Project •Led by Melody LaBella, Resource Recovery Program Manager •Reduce operations & maintenance costs, strive for net zero energy •Solicit interested bioenergy companies interested in partnership opportunities to produce renewable energy and process a portion of the wastewater solids August 17, 2017 Regular Board Meeting Agenda Packet - Page 83 of 102 Page 10 of 16 Large Diameter Pipe Inspections •Cutting edge inspection technologies (laser scanning, 3-D HD Cameras, sonar, etc.) •Over 76 miles of large-diameter sewers from 24” to 102” diameter (mostly reinforced concrete pipe, over 50% are >50 years old) •Inspections prioritized by risk score •Update condition scores, investigate corrosion and sediment, defects, etc. Force Main Inspections •Pressure transient monitoring, acoustic leak detection, electromagnetic •Over 21 miles of force main up to 30” diameter (concrete, ferrous, plastic pipe materials) •Inspections prioritized by criticality •Update condition scores, investigate corrosion, defects, etc. A L OOK AHEAD AT APPLIED RESEARCH – COLLECTION SYSTEM INSPECTIONS August 17, 2017 Regular Board Meeting Agenda Packet - Page 84 of 102 Page 11 of 16 Test Smart Manhole Covers •Monitor surcharge in key areas of collection system •Investigate/validate InfoWorks model predictions Continue to Pilot & Optimize InfoMaster Risk Model •Update sewer degradation model •Update sewer replacement plan •Investigate software improvements (e.g. new GIS layers) A L OOK AHEAD AT APPLIED RESEARCH/PLANNING –SEWER MODELS August 17, 2017 Regular Board Meeting Agenda Packet - Page 85 of 102 Page 12 of 16 MANY OTHER POTENTIAL PROJECTS & INVESTIGATIONS IN THE QUEUE •Aeration air flow investigation •Final effluent channel aeration reduction pilot •Clarifier stress testing •Chemically enhanced primary treatment (CEPT) benchtop pilot •Bioxide dosing optimization pilot •Instrumentation upgrades planning (e.g. power meters, nutrient analyzers, improved flow meters) •Capital Projects continued use of innovative sewer construction technologies (e.g. AXIS guided boring system used on Grayson Creek project) •And others…. August 17, 2017 Regular Board Meeting Agenda Packet - Page 86 of 102 Page 13 of 16 COLLABORATE, PARTICIPATE, & BUILD RELATIONSHIPS WITH INDUSTRY PARTNERS August 17, 2017 Regular Board Meeting Agenda Packet - Page 87 of 102 Page 14 of 16 SIMILAR TO PAST PROJECTS, RESEARCH CAN YIELD REAL BENEFITS •Eliminated Gaseous Chlorine Safety Hazard •Business Case Evaluation for UV versus Chlorination •UV system has successfully disinfected wastewater for the last 20 years •Increased primary solids removal from 60 to 75% •Improved centrifuge dewatering performance August 17, 2017 Regular Board Meeting Agenda Packet - Page 88 of 102 Page 15 of 16 QUESTIONS? August 17, 2017 Regular Board Meeting Agenda Packet - Page 89 of 102 Page 16 of 16