Novel Memthane Anaerobic MBR realizing sustainable ambitions. Frankfurt; June 19, 2012; 11:30 Jan Pereboom and Jeroen van der Lubbe

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1 Novel Memthane Anaerobic MBR realizing sustainable ambitions Frankfurt; June 19, 2012; 11:30 Jan Pereboom and Jeroen van der Lubbe

2 Contents 1. Introduction 2. Drivers for AnMBR 3. Novel Memthane technology 4. Case studies 5. Conclusion 2

3 Biothane: competence centre of Veolia Water Veolia Water Revenues 12.6 bln ; 69 countries; 97,000 employees Drinking water for 103 mln consumers; sewage of 73 mln inhabitants Veolia Water Solutions and Technologies (VWS) Contracting and equipment; 250 proprietary technologies Revenue 2.6 bln ; 135 business units; 10,000 employees Biothane World market leader for Anaerobic industrial wastewater treatment In 35 years some 530 references were established 3 3

4 Drivers for anaerobic technology Biogas CH 4 28 Nm 3 CO 2 9 Nm 3 Heat loss Aerobic BOD Air (O 2 ) 100 kg COD Aeration 100 kwh Carbon Dioxide Biomass 2-10 kg COD BOD Anaerobic (25 O C 35 O C) 100 kg COD 80% Biogas (75% Methane) 5% Biomass 15 kg COD Sludge, kg COD Sludge 5 kg COD 1 kg COD removed 0.35 Nm 3 CH kwh 4

5 Biothane s granular technologies Biothane UASB Granular Sludge Bed Up to 15 kg COD/m3/d Biobed EGSB Granular Sludge Bed High Rate Process Soluble COD removal Up to 30 kg COD/m3/d 5 5

6 Biothane s technologies; non-granular Biobulk CSTR Solid waste digestion With our without sludge recirculation Suitable for high COD / SS / FOG waste(water) Upthane Municipal UASB technology for tropical climates Novel design Memthane Anaerobic MBR New technology for high strength wastewater Using Cross-flow UF membranes High COD / SS removal efficiencies 6 6

7 From wastewater treatment plant to Bio-Refinery Energy in Biogas Wastewater AWWTP Water for reuse Residue Nutrients for fertilizer 7

8 Borregard case Norway Wastewater Treatment Cellulose based chemicals Flow: 18,240 m 3 /day ; COD load : 100 ton/day High rate anaerobic & Filtration Biogas Production Biogas Production: 31,200 Nm 3 /day Gross Calorific Capacity: 10.8 MW Benefits Water treated to meet effluent limits Biogas produces as renewable energy source

9 2 Drivers for Anaerobic MBR

10 Drivers for Anaerobic MBR (1) Specific wastewater characteristics FOG (Fat, Oil & Grease) and LCFA (Long Chain Fatty Acids) Hamper granulation in UASB or EGSB High concentrations (COD + salts); e.g. Whey & Thin Stillage Un-diluted: no granulation in UASB due to high HRT, salts Diluted: too large UASB reactor volume Solution often low loaded CSTR systems 10

11 Drivers for Anaerobic MBR (2) Higher loading rate in CSTR digester achieved by Uncoupling of HRT and SRT by use of membranes Higher COD removal efficiencies & clear effluents Smaller post treatment; more compact & less energy consumption Higher digestion efficiency, more biogas Effluent free of suspended solids; easy nutrient recovery 11

12 3 Novel Memthane technology

13 Memthane ; step-by-step Conditioning of highstrength wastewaters. Influent is fed to the anaerobic bioreactor where the organic components are converted into energy-rich biogas. Cleaning In Place (CIP) After anaerobic treatment, the UF membrane unit separates the clean permeate from the biomass. If required, several polishing techniques are available to further treat the suspended solids free effluent for reuse or recovery of nutrients, while the low COD permeate is often clean enough for direct discharge to sewer. Biomass is returned to the bioreactor, while a small amount of biomass is removed from the system and discharged after dewatering. 13

14 Memthane ; Features Treat high-strength effluent previously considered untreatable High concentrated streams : COD 20, ,000 ppm Superb effluent quality Create product for nutrient recovery (N+P) Maximize renewable green energy production Generates biogas from wastewater Minimizes carbon footprint and water footprint Remove COD efficiency: > 98% Avoids costly aerobic post treatment Generates more biogas Reduced OPEX Reduces disposal costs while generating biogas 14

15 Memthane ; Technology (1) Mechanically Simple & Reliable All streams fully contained to eliminate odour (pressurized design) Cross-flow UF membranes; fully accessible for maintenance Sustainable flux rate automated & controlled cleaning regime Membrane fouling controlled by Reactor design; stratified mixing (patented Design) Proven tubular UF cross-flow (X-Flow Pentair) Selective removal inorganic precipitation (patented Design) Robust control Robust in handling COD and hydraulic peaks Short startup; function of seed culture volume Stable biomass; 100% retention Automated control (load, ph, Temp, Foam) 15

16 Memthane ; Technology (2) Minimal Operational Expenses Maximum Energy Production (98% COD conversion) Biodegradation complex COD due to controlled SRT (> 100 days) Lower chemical consumption; less soda for ph correction Low Sludge Production (0 3% due to long SRT) Excellent Final effluent quality (High) Removal Efficiency (TSS ~ 0 ppm) and (COD removal > 98% in 1 stage) Easy downstream nutrient recovery and water re-use Compact installations High volumetric loading rates Substantial savings in posttreatment Anaerobic + Aerobic = Memthane 2 processes combined in 1 16

17 Memthane ; Performance characteristics Input COD : 20 ~ 250 kgcod/m3 FOG : up to 10 kg/m3 Loading rate : 5-10 kgcod/m3d Sludge concentration : kgvss/m3 Solids retention time : > 100 d Membrane Flux : lmh COD removal efficiency : >98 ~ 99.5 % Effluent COD : < 200~500 gcod/m3 Effluent TSS : < 1.0 mg/l 17

18 Memthane ; Applications High concentrated streams (COD 20,000 ~ 250,000) such as Dairies Whey, Milk Processing Ethanol Facilities Pot Ale, Spent Wash, (Thin) Stillage and Vinasse Food wastewaters with Fat Oil and Grease (FOG) Ice cream Wastewaters containing high COD Bio-ethanol, Biodiesel, Chemical Wastewaters 18

19 Memthane ; Track record Proven Innovation 6 full-scale Memthane plants 4 years of full-scale industrial operation 14 pilot plant tests Implemented in: Dairy industries Bioethanol plant Cellulosic Bioethanol plant Biodiesel plant Food processing 19

20 Suspended Solids Memthane ; Market positioning COD 20

21 4 Case studies for Memthane technology

22 Bio-ethanol distillery in Poland Biofuel production capacity: 10,000 m 3 Ethanol per year Bases: Corn Flow: 700 m 3 /day / COD: 48 ton/day TKN: 720 ppm / t-p: 820 ppm 22

23 Traditional approach distilleries Whole Stillage Distillery Thin Stillage Dewatering evaporator Distillers Grain Condensate Other & Cleaning Effluents High Rate Post treatment River Discharge 23

24 Bio-ethanol design considerations BIOBED Dilution Effluent Biogas Boiler Stillage Centrate DAF BT Aerobic Post Treatment DAF Float Sludge stream MEMTHANE Biogas Water re-use Stillage Centrate BT Memthane Nutrient Recovery Sludge stream 24

25 Full scale design Bio-ethanol Memthane treating thin stillage of 45 ton COD/d COD removal efficiency > 98-99% Gross caloric value >5.4 MW Electrical balance Production 2.2 MWe Consumption Memthane 0.3 MWe Post treatment options Struvite precipation Water Re-use 25

26 Memthane ; Chemical application Methyl-Styrene Propene-Oxide (MSPO): Various highly concentrated wastewaters streams High and Low salt streams; with very different chemical composition Recent lab scale research showed: 30~40 % of overall COD can be degraded anaerobically Conclusion Treatment of source separated streams is essential One or more anaerobic reactors: modular Memthane High loaded aerobic + low loaded aerobic polishing Only small remaining stream would be incinerated Enormous saving in operation cost 26

27 5 Conclusions

28 Conclusions on Memthane Compact technology with low Capex and Opex Low carbon footprint More biogas production Less chemicals Smaller or no aerobic post treatment Cross-flow UF facilitates easy maintenance Complete biomass retention guarantees reliable performance Contributes to the Bio-refinery concept 28 28

29 Thanks for your attention For further information or questions Please contact: Jan Pereboom; Marketing Manager at Biothane or visit our booth: 6.1 B98 29