Experiences with anaerobic treatment

Transcription

1 Experiences with anaerobic treatment of organic waste and biogas utilization Dr.-Ing. Dieter Korz Ros Roca Ingenieria del medio ambiente S.L. Felix-Wankel Wankel-Str.. 17 D Ostfildern-Nellingen / Germany Mail: korz@rosroca.de

2 Content of presentation 1. Activities Ros Roca Environment 2. Experiences AD technology / Case studies 3. Biogas upgrading 4. Summary

3 Products and technologies for environmental protection Waste collection trucks Pneumatic waste collection Technologies waste, biomass utilization Cryogenic products and technologies

4 Turnkey technology solutions Anaerobic digestion (Wet technology) Composting (Tunnel, Drum, Corridors) Mechanical-biological treatment with AD and / or aerobic treatment Sorting plants Biogas treatment (Drying, Desulphurisation, Upgrading, CNG, LNG) Biogas utilization (CHP, Boiler, Gas injection, Filling stations)

5 General contractor services Planning for approval procedures Project development Basic and Detail engineering Project management Purchasing Quality and environmental management Site supervision Start-up After sales service Plant operation

6 Input material for Ros Roca AD technology Municipality Industry Agriculture Source separated organic waste (SSO) Organic fraction MSW Sewage sludge Packaged food Residues from food and beverage production Food leftovers Grease Slaughterhouse waste Residues from ethanol fermentation Manure Dung Energy crops Ros Roca AD process is flexible and treats organic waste independent of humidity

7 Process flexibility is important Waste quality is subject to strong variations Efficient utilization of fermenter for biogas production (no feeding of non bio-degradable organic material) Political frameworks change (e.g. renewable energy act Germany) Market conditions change

8 The AD technology of Ros Roca Main process steps Wet Pretreatment Adjust water content Separation of impurities and non bio- degradable material Minimizing wear in the plant Avoid sedimentation and floating Production of high quality fertilizer Pasteurization (ABPR 1774/2002) > 70 C, > 1 h, particle size < 12 mm Kill pathogens Production of pasteurized digestate for direct agricultural utilization Anaerobic digestion Mesophilic or thermophilic operation Completely biogas mixed digester No moving elements inside High specific biogas production Dewatering Separation in high quality solid and liquid fertilizer Reliable, effient dewatering with centrifuges Low solid concentration in process water Operation without polyelectrolytes possible

9 Efficient biogas utilization: : Ros Roca solutions Raw biogas CH % On-site CHP Bio methane CH 4 > 97 % Biogas upgrading On-site heating boiler Natural gas grid Bio fuel production Central power plant Consumer Vehicles

10 Ros Roca biogas plants in Europe

11 Västeras, Sweden t/y Saarema, Estonia t/y Vienna, Austria t/y Barcelona, Spain t/y Case studies industrial anaerobic digestion plants of Ros Roca Kielen, Luxemburg t/y Avila, Spain t/y Voghera, Italy t/y Mallorca, Spain t/y

12 Main advantages digestion process of Ros Roca Process works independent from humidity of waste Treatment of liquid and solid organic waste and biomass from municipality, agriculture, industry Completely automized process Minimum manpower requirements Separation of impurities ahead of digester Low maintenance requirements High quality digestate / compost Flexible digestate marketing Pasteurisation of waste according to ABPR (EU directive 1774/2002) High biogas productivity and quality Modularly extendable Low odour emissions

13 Why biogas upgrading? Energy balance of biogas upgrading & CHP on-site utilization Energy balance of biogas upgrading & CHP off-site utilization Energetic efficiency in biogas utilization is normally higher if biogas is upgraded to bio methane and utilized in off-site CHP-installations

14 Biogas upgrading: Pressurized water scrubber technology

15 References biogas upgrading plants (YIT-technology) Location Eskilstuna, Sweden Linköping, Sweden Västerås, Sweden Norrköpping, Sweden Boden, Sweden Dorsten, Germany Altenstadt, Germany Kielen, Luxemburg Capacity, Nm 3 /h (2 * 700) (2 * 1.250) in operation since Start-Up 2009 Start-Up 2009 Start-Up 2009

16 Experiences with biogas upgrading Container installation Building installation

17 Main advantages biogas uprading process of Ros Roca High availability No hydrosulphide removal necessary No chemicals necessary Low methane slip Flexibility concerning biogas quality variations Process heat utilization possible

18 Summary Ros Roca is spezialized in turnkey realization of biological waste treatment technologies and biogas utilization Plant designs are developed project specific Long year experieces with all technologies which are realized in numerous industrial scale plants Technologies for waste treatment and biogas utilization are most flexible No interfaces between AD and biogas utilzation Several local offices of Ros Roca IMA are already established (Spain, Germany, UK, Portugal, Italy, Middle East)

19 Thank you very much for your attention Ros Roca Ingenieria del medio ambiente S.L. (IMA Germany) Felix-Wankel-Str.17 D Ostfildern-Nellingen Tel: Ros Roca IMA UK Ltd. Heathcote Way Heathcote Industrial Estate Warwick Warwickshire CV326 TE /