AnaFlo UASB Upflow Anaerobic Sludge Blanket Presented by Kirsten Sims and Jon Richens Overview UASB Upflow Anaerobic Sludge Blanket Treatment of high strength waste streams Smaller footprint as compared to aerobic treatment ID: 766581
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Ana-Flo™ UASB Upflow Anaerobic Sludge Blanket Presented by: Kirsten Sims and Jon Richens
Overview UASB – Upflow Anaerobic Sludge BlanketTreatment of high strength waste streams Smaller footprint as compared to aerobic treatment.Recovery of biogasIs the “KEY” unit process in the overall solution.
Ongoing Anaerobic Experience
So why now? Industrial Biological Treatment is an untapped market segment for WesTech.Environmental regulations are putting pressure on Industries and Municipalities.We see a growing market and a need. Treatment costsSustainabilityWesTech is working to be the Solution Supplier, not just Equipment Supplier.
WesTech Ana-Flo Upflow Anaerobic Sludge Blanket Reactor (UASB) Biological removal of organic contaminants under anaerobic conditions Reactor retains active biomass, while releasing treated effluent and generated biogas Treatment of wastewater with high levels of soluble organics (high BOD or COD)
WesTech Ana-Flo Wastewater is passed upwards through a bed of active anaerobic sludge Soluble organics are degraded and converted to biogas Biogas 60% CH4, 40% CO2 Treated Effluent 60-90% COD Reduction 70-90% BOD Reduction Anaerobic Biosolids Only 5% influent COD becomes sludge High Strength Wastewater
UASB Reactor and Granulation Key to operational performance: Sludge Granulation Granulation allows biomass to settle quickly and form a sludge blanket, allowing continuous flow. Nitrifying De-Nitrifying Aerobic Anaerobic *High Metabolic Activity *High Settleability Methanogenic Anaerobic
How does it work? UASB was a breakthrough in anaerobic technology application De-couples the Solids Retention Time (SRT) from the Hydraulic Retention Time (HRT)
Brief History of UASB Anaerobic treatment has been rapidly developed since the late 1960’s Originally developed by Professor Gatze Lettinga during the 1970’s at Wageningen UniversityChose not to patent to ensure technology was universally available First Installation: Sugar Mill Effluent- 1979 U.S. Anaerobic Treatment Installations :1970-2009
Ana-Flo Applications Breweries and Beverage Distilleries and Fermentation Food Processing Pulp and Paper Chemical and Petrochemical (biological) Textile Industry Effluents Landfill Leachates Palm Oil Dairy Acid Mine Drainage Sulfate reduction coupled to sulfur removal Sulfate reduction coupled to metal recovery Municipal Wastewater (in warmer climates) 90% of UASB installations were in these applications before 1990 Growing interest in UASB applications for these applications Additional UASB applications found in these markets
High-Rate Anaerobic Applications in Industries
Eliminate power requirement for blowers/aerators Anaerobic vs Aerobic Significant reduction in biosolids Produce biogas for heat and electricity potential
Adoption rate of anaerobic technologies is accelerating UASB Market CAGR = Compound Annual Growth Rate
UASB applicable industries Potential Customers
WesTech Ana-Flo UASB Excellent Consistent Performance Low Energy ConsumptionEliminates high power requirement of aerated systems (blowers and aerators)Low Sludge ProductionLow Macro/Micro Nutrient RequirementProduction of Valuable Byproduct (Biogas)Low Hydraulic Retention Time (HRT)Improved Sludge DewaterabilityHandling of organic shock loads Simple Reactor Construction Verified Reactor Performance and Design No mechanical mixing required Advantages Disadvantages Long start-up period Lower performance at very low loadings Low pathogen removal Potential odor Methane gas, Sulfuric Compounds Low nutrient removal Cannot achieve surface water discharge levels without further treatment (aerobic polishing) Challenging in cold climates
Waste streams not directly suitable for UASB treatment Waste streams with insoluble fraction exceeding 60% Upstream fermenter will be required to allow organics to solubilize Waste streams with high levels of TSS (>2,000 mg/L) Pre-treatment will be required (DAF, sedimentation, etc.) Waste streams with constituents requiring oxidization for removal - Fe, Mn, etc. Waste streams with highly variable characteristics - EQ may be required
Anaerobic Providers Full Equipment/Solution Provider? Paques No Biothane Yes Waterleau No HydroThane No Multiple Global Technology Suppliers Notable domestic competition: YES Competition
WesTech’s UASB Team Utah State University Microbial isolation, characterization, and optimization for new applications of UASB LeAF Consulting Agreement Design Support Start-Up Support Troubleshooting/ Operations Support Utah Science Technology and Research Initiative Obtained competitive grant funding with USU to study anaerobic treatment for petroleum waste in a UASB
WesTech’s UASB Team WesTech is the exclusive domestic distributor for municipal and industrial wastewater applications of the Cleanergy GasBox Stirling Engine External combustion engine allows untreated biogas to be converted to heat and electricity Unique Combined Heat and Power System
Why WesTech Ana-Flo? Chance to provide customers with a complete SOLUTION
Why WesTech? WesTech offers a complete line of water and wastewater treatment solutionsWesTech proudly boasts a 43 year history of successful treatment system design and implementation WesTech can provide basic pretreatment to complete reuse level effluentSingle Source Responsibility
WesTech Ana-Flow Ancillary equipment Gas handling/conversion - Heat exchanger/boiler system - Process monitoring instrumentation - PLC system for process control - Chemical feed system -Nutrient management system
© WesTech Engineering, Inc. 2016