Locimap Conference Sille Bendix Larsen 2/28/2014 2 2/28/2014 NOVOZYMES PRESENTATION Content of presentation • • • • Introduction to Novozymes’ waste water treatment plant in Kalundborg From energy consumer to energy producer Is it that easy? More energy projects CONTENT 3 28/02/2014 NOVOZYMES PRESENTATION Environmental Operations on Site Ka Environmental Operations Kalundborg Wastewater and biomass treatment Overview Waste Water treatment Facts Waste water 9.500 m3/d ~ 3.5 m3/year Treatment Organic mat. Nitrogen Phosphorus Organic material, Nitrogen, Phosphorus 152 ton/d -> CO2 & H2O 6 ton/d -> Atmospheric nitrogen Chemical precipitation COD Efficiency 98 % – the rest is treated at Municipal waste water treatment plant Biomass NovoGro®30 4400 m3/d 410 ton/d ~ 150.000 ton/year 6 28/02/2014 NOVOZYMES PRESENTATION Wastewater treatment 1° CLARIFIER BIOLOGICAL TREATMENT ANAEROBIC/ AEROBOC 2° CLARIFIER FLOTATION/DAF WASTE WATER NZ WASTE WATER NN WATER REUSE KALUNDBORG MUNICIPAL WWTP WAS BIOMASS TO INACTIVATION/DECANTERS REJECT WASTEWATER SURPLUS BIOMASS RESIDUAL COD TREATEED WITH OZONE 200 mg/L to 75 mg/L NOVO ZYMES PRESE NTATI ON 7 28/02/2014 NOVOZYMES PRESENTATION Biomass treatment INACTIVATION DECANTERS LAND APPLICATION BIOMASS FROM WASTE WATER TREATMENT PLANT BIOMASS WASTE WATER SOLIDS STABILIZED WITH LIME: NOVOGRO30 BIOMASS FROM PRODUCTION TO BE INACTIVATED STEAM: 90ºC – 1 HOUR OR CAUSTIC (pH > 11) NOVO ZYMES PRESE NTATI ON WASTEWATER TREATMENT PLANT NovoGro30 150.000 t/year Storage on farm land Spreading by NZ 9 28/02/2014 NOVOZYMES PRESENTATION Biogas at Novozymes Kalundborg • Reactor capacity ≈ 55 ton COD/d • CO2 reduction ≈ 20.000 ton/y • Safety of operation and expansion possibility in focus 10 28-02-2014 NOVOZYMES PRESENTATION Process and energy mass balance Energi Biomasse Aerob proces Renseanlæg (MWh) Før Electricity -17.500 +9.000 -6.500 -5.500 Damp Fjernvarme Total Varme N2/CO2 Biomass Anaerob proces Energi +25.500 -24.000 29.000 Biomasse Aerob proces Varme N2/CO2 Biogas Efter = energy Corresponding to 7 Wind mills at Horns Rev II 28/02/ 2014 11 NOVOZYMES PRESENTATION The process: UASB reactor Upflow Anaerobic Sludge Blanket Komplekst organisk materiale Hydrolytiske og fermenterende bakterier PAT Mellemprodukter (fx. alkoholer og carboxylsyrer) Acetogene bakterier Acetat CO2 + H2 IC-reaktor Acetoclastiske Hydrogenotrofe Metandannende bakterier CH4 + CO2 28/02/ 2014 12 NOVOZYMES PRESENTATION Technology 28/02/ 2014 13 NOVOZYMES PRESENTATION Is it that easy? Nm3/h 1000 \\PIDK\CC$080NFT01 0,89 Nm³/h 900 800 Nm3/h 1000 \\PIDK\CC$080NFT01 301,13 Nm³/h 700 • 40% of flow from ”Brown city” 900 600 • New biomass inoculated Dec 2013 800 500 700 • No wastewater from ”Brown city” 400 600 300 • Production first started week 3-4 due to low NN production load. 500 200 400 100 14-11-2013 09:31:34 Biogas flow 300 5,64 days 20-11-2013 00:47:20 200 100 18-11-2013 07:24:20 Biogas flow 6,27 days 24-11-2013 13:50:02 14 Lab-scale: Inhibition tests (Raw materials) Nutrient solution (anoxic): Outlet from biogas reactor Potential toxic compound (dilutions) Acetate (adjust pH) Biomass Run 1: 7 d, 35C 1. Release pressure 2. Acetate Pressure (hPa) 1. 2. 3. 4. 400 350 300 250 200 150 100 50 Run 2: 3 d, 35C 0 0,00 0,50 1,00 1,50 Days 2,00 2,50 15 28/02/2014 NOVOZYMES PRESENTATION Biomass – on site ‘liquid’ solution biogas BIOMASS FROM WASTE WATER TREATMENT PLANT ANAROBIC DIGESTION Biomass: 1.5 mill m3/year Reactor volume estimate: 100.000 m3 BIOMASS FROM PRODUCTION NOVO ZYMES PRESE NTATI ON CONCENTRATION OF BIOMASS WASTE WATER High on nitrogen (1000 tons N/year) READY TO SELL PRODUCTS SOLIDS STABILIZED WITH LIME: NOVOGRO30 WASTEWATER TREATMENT PLANT Expansion for nitrogen removal estimated at 2 bioreactors (~100 mill DKr) Or an Anammox 16 28/02/2014 NOVOZYMES PRESENTATION Biomass – off side ‘solid’ solution BIOMASS FROM PRODUCTION DEWATERING ANAEROBIC DIGESTION BIOMASS FROM WASTE WATER TREATMENT PLANT DIGESTED MIX OF MANURE AND NOVOGRO FOR LAND APPLICATION Dewatered biomass MANURE Volume: 150.000 m3/year + Manure. Land requirement for sustainable P management: 8000 ha/year – 40.000 ha/5 years. NOVO ZYMES PRESE NTATI ON 3 months application window for liquid slurries. 17 28/02/2014 NOVOZYMES PRESENTATION Liquid solution LIQUID SOLUTION BENEFITS BIOGAS VALUE ? REDUCED COST FOR NZ GMO INACTIVATION PROCES 6 MILL DKR/YEAR CHALLENGES ADDITIONAL NITROGEN REMOVAL CAPACITY NEEDED ~ 100 MDKR BIOGAS REACTOR VOLUME: 100.000 M3 DEWATERING AND STORAGE OF DIGESTED SLUDGE. NOVO ZYMES PRESE NTATI ON WHERE DO WE GO FROM HERE? 18 28/02/2014 NOVOZYMES PRESENTATION Off side ‘solid’ solution SOLID SOLUTION BENEFITS BIOGAS VALUE ? REDUCED LIME CONSUMPTION 11 MILL DKR/YEAR CHALLENGES HECTARES NEEDED FOR SUSTAINABLE P MANAGEMENT 8.000 HECTARE/YEAR 40.000 HECTARE/5 YEAR LONG TRANSPORTATION OF DIGESTED SLURRY NZ/NN PRODUCTION SERURITY NOVO ZYMES PRESE NTATI ON WHERE DO WE GO FROM HERE? 19 2/28/2014 Questions? Questions NOVOZYMES PRESENTATION CONTACT: SBXL@NOVOZYMES. COM
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