Towards the best waste management system in the world? Sorting, biological treatment and carboncapture in Oslo Johnny Stuen Technical director 1 8.9.2016 Treats Oslo s municipal waste
(EGE) Waste-to-Energy Agency Aiming for optimal resources from municipal waste in Oslo Sorting, waste-to-energy and biological treatment Systems development learning from the best 140 employees, a powerhouse in Norway Delivers renewable energy to the city, heat and fuel. Renewable fertilizer to the city and the farmers
Source separation June 2012 every household can sort The citizens of Oslo is getting better at sorting every year 127 000 tons of waste sorted in 2015, 120 waste trucks every day 5 days a week Plastic waste becomes new plastic products saves 4200 tons oil every year, and consciousness about plastics Food waste becomes high quality bio fertilizer and biomethane (LBG) Good quality on the sorted waste Important!! education of citizens must be continuously
Source separation To day pr citizen: 6 kg/year plastic packaging 33 kg/year foodwaste Potential: 10 kg/year plastic packaging 50 kg/year foodwaste. 9 /10 say they source separate Good intention, but a wish is not the same as action, so allow 10 years for the city to adopt best sorting practice!
Sorting : Worlds largest of its kind, runs without human touching of waste. High regularity, high quality, >95% of all colored bags sorted, and purity of fractions > 97% Developing fetch- and leave concepts for waste part of the city planning More sorting of the rest waste maybe presorting steps
Romerike biological treatment plant Oslo kommune Finished december 2012, technology by Cambi (Norway) Capacity: 50 000 t/year, Termic hydrolysis (THP) Only food waste, 6 mill Nm 3 CH 4 year (99%, liquid and compressed), Biofertilizer of all foodwaste Biogas-fueled buses Organic fertilizer for farming
New resources from foodwaste Local waste resources Biogas production Development: H 2 and protein production? Biomethane fuel Biofertilizer Circular economy in practice
Resources Optical sorting plants 10000-20000 tons plastic/year Romerike biological treatment plant Technology Plastic for pyrolysis Biomass for pyrolysis Renewable products Synthetic diesel 1500-2000 tons plastic 5000 tons solid biofertilizer 1-2 mill Nm 3 CO 2 Hydrogen Reformation from syntesgases Fuel Biologic produktion of CH 4 from CO 2 Hydrogen Methane (CCR) Other waste fractions in Oslo 21000 tons gardenwaste 20000 tons wastewood 3200 tons other plastic Cryogenic cleaning -120 ºC Biofertilizer to fertilizercompost Commercial CO 2 Peatless compost
Expected production increase in Oslo mill. Nm 3 15 10 VEAS RBA VAV 14-15 5,5-6,5 5 0 1,7 4 2,3 0 Current production 5,5 3 Future production
1 Oslo kommune Success criteria and further development More and improved communication about products from waste Keeping the necessary waste infrastructure in the city Processes more sorting, cleaner fractions, reuse of everything from the treatment plants Products: biogas as resource for hydrogen production, H 2 as catalyst/resource in biogas production, CO 2 as a syngas Market: Commercializing biofertilizers, creating a market for biomethane
Carbon capture from non-recyclable waste Source separation + carbon capture (the Osloway) saves CO2 four times during: 1. Waste diverted from landfill saves CO 2 2. Sorted waste saves CO 2 by replacing fossil raw material 3. Non-recyclable waste displaces fossil CO 2 in district heating and electricity production 4. CO 2 after incineration can be captured and stored or used Carbon capture can be implemented on Waste-to-Energy plants and on facilities for biological treatment 1
Klemetsrud WtE-plant suitable for CO 2 -capture Oslo kommune Objectives Study and pilot testing on flue gas winter 15/16 Different technologies investigated, delivered May 16 Three industrial capture candidates Objective; full scale capture-plant by 2022 Advantages Existing plant Continuous operations Energy flexible Industrial expertise Global transferability Business opportunities with carbon negativity
1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 Oslo District kommune heating in Oslo 2006 2013 Heatproduction: 2006: 1014 GWh 2013: 1702 GWh 2 000 1 800 1 600 1 400 1 200 1 000 800 600 400 200 - Year GWh 2 006 1 014 2 007 1 130 2 008 1 194 2 009 1 367 2 010 1 765 2 011 1 533 2 012 1 650 2 013 1 702 District heating covers 20% of the heating demand 1
Summary Oslo has one of the best waste management systems in the world, and its constantly developing Source separation works saves virgin raw materials, produces new raw material, creating jobs in the circular economy Optimal usage of resources in waste, must be done in a sustainable society Research and development is crucial to secure further development