HSY INKA SEMINAR Thermal Processing of Wastewaster Sludge February 1, 2017

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1 HSY INKA SEMINAR Thermal Processing of Wastewaster Sludge February 1, 2017 Juhani Anhava Business Development Director, BL Energy & Environment M.Sc in Agriculture & Forestry and M.Sc in Environmental Engineering Outotec (Finland) Oy

2 Background of FULLREC - solution Outotecin ja Ecolan Oy:n yhteinen FULLREC-lietteenkäsittelymenetelmä saavuttivat jaetun ensimmäisen sijan Ravinnekierto Challenge -ideakilpailussa. Alan toimijoiden mukaan ravinnekierron tehostuminen on mahdollista ennen kaikkea kannattavan liiketoiminnan myötä. FULLREC - RATKAISUssa, yhdyskuntien jätevesien lietteestä ja energian tuotannon tuhkista saadaan talteen ravinteita myytäviksi lannoitetuotteiksi. Ehdotus yhdistää kolme aiemmin erillistä teknistä prosessia. Mädätettyä yhdyskuntajätteen lietettä ei perinteiseen tapaan polteta kokonaan, vaan kuivataan ja sekoitetaan tuhkaan seos rakeistetaan ja pystytään kuljettamaan kustannustehokkaasti pitkänkin matkan päähän esimerkiksi metsien lannoittamiseksi. Lähde : Sitran nettisivut sarjen-uudenlainen-kaytto-ja-lietteen-rakeistus-voittoon 2 2/2/2017

3 Tulevaisuuden ratkaisu ravinteiden kierrätykseen % fosforista, typestä ja kaliumista uudelleen käyttöön lannoitteiden valmistukseen ja myös pääosa hiilestä takaisin metsiin ja pelloille Lähde : YVA-arviointiohjelma Nokian kaupungin Uudelle ECO 3 CLEANTECH aluelle Outotec (Finland) Oy ja Ecolan Oy, kesäkuu 2016 Vuonna 2005 käynnistynyt referenssilaitos Bad Vöslaussa, 40 km Wienin eteläpuolella vastaa kapasiteetiltaan suunnilleen Nokialle kaavailtua lietteen polttolaitosta. Sen yhteydessä on yli 10 vuotta erittäin luotettavasti toiminut aurinkoenergiaan ja bioenergian tuotannon hukkalämpöön perustuva THERMO-SYSTEM in esikuivaus 3 2/2/2017

4 What is FULLREC in Nutshell? OUTOTEC ECOLAN ECOLAN THERMO-SYSTEM OUTOTEC OUTOTEC 4 2/2/2017 Lähde : YVA-arviointiohjelma Nokian kaupungin Uudelle ECO 3 CLEANTECH alueelle (kuvaan lisätty teknologioiden toimittajat) Outotec (Finland) Oy ja Econlan Oy, kesäkuu 2016

5 What kind of technology is needed before you start drying?

6 Origin of main feed materials for nutrient recycling Sludge from Waste Water Treatment Plant (WWTP) Photo : Zürich WWTP Digestate from non-integrated Biogas plants (e.g. by GASUM) Photo : Gasum Oy, Vehmaa Plant Source : Outotec Oyj 6 2/2/2017 Source :

7 How sludge looks like before and after dewatering? Before Input to Sludge Thickening After Output of Sludge Dewatering Source : Outotec Oyj 7 2/2/2017

8 UNDERPRESSURE OVERPRESSURE Wide portfolio of dewatering products Larox PF and DS Outotec FP and FFP Larox LSF Automapressure filters Chamber filter presses Liquor clarifying filters Outotec Ceramec Ceramic disc filters Source : Outotec Oyj Pannevis RT, RT-GT and RB-SV Horizontal vacuum filters Larox SC Disc filters

9 Outotec Larox FFP 3512 Flagship Product First Class Dewatering Technology Engineering drawing Photo before delivery from Lappenranta workshop Source : Outotec Oyj 9 02/02/2017

10 What kind of technology is available for pre-drying?

11 Conventional solutions Sludge incineration unit processes Conventional Disc Drying Main focus now on pre-drying! 11 2/2/2017

12 New pre-drying applications 1/2 OUTOTEC PhosDryer Fast pasteurization THERMO-SYSTEM Belt Drying Pilot-plant construction and initial tests with local feed in Tests with many different feed materials and optimisation in 2016 Possibility to lease pilot plant to additional tests in Finland in /2/2017 Fit for applications with excessive amounts of warm air or other type of secondary heat Can be combined with other pre-drying methods

13 New pre-drying applications 2/2 THERMO-SYSTEM Solar Drying THERMO-SYSTEM Solar Plus Drying Combining the Re-use of Waste Heat and Solar Radiation 13 The biggest plant in Europe on Palma de Mallorca tpa PE 2/2/2017

14 What kind of technology is best for sludge incineration?

15 Alumina calcining The pioneer and > 60 years track record in modern combustion technology Gold roasting Two Examples of Power Plants Iron ore reduction Zinc roasting 15

16 Outotec Fluidized Bed Technologies BFB Sludge BFB Gasifier CFB MWth t/a 200 MWth < 600 MWth

17 Outotec BFB Technology MW th range

18 Solid Fuel criteria for BFB Fuel type High Calorific value fuels High Coal content High Fuel Flexibility High Clorine content Low Ash Melting point RDF REF SRF Outotec Solution WtE BFB boiler with Bed Cooling system and Horizontal Heat Transfer section Industrial Sludges Woody Biomass Peat WtE BFB boiler with limited or no Bed Cooling system or BFB Boiler Low Calorific value fuels Non slagging fuels High Moisture content BFB boiler with vertical Heat Transfer section

19 Sample of fuels in BFB boiler fuel mixes Almond Shells, Apple wood, Barley straw, Bean straw, Cherry Pits, Coffee Grounds, Corn Cobs, Corn Stalks, Cotton Seed Hulls, Cubed Garlic, Garlic Skins, Onion Skins, Nectarine Wood, Oat Straw, Olive Pitts, Peach Pits, Prune Wood, Rice Hulls, Rice Straw, Sunflower Stalks, Sunflower Hulls, Tobacco Sludge, Tomato Pomace, Wallnut Shells, Wheat Straw, Chicken Litter, Turkey Littler, Paunch Manure, Cow Manure, Horse Manure, Race Track Shavings, Sewage sludge, Paper Sludge, Bark, Board Plant Waste, Hardwoods, Planner Shavings, Railroad Ties, Sander Dust, Saw Dust, Splash, Softwood, Urban Wood Waste, Resins RDF, Demolition Waste, Asphalt Shingles, Tires, Rubber Waste, Carpet Straps, Coal, Lignine, Petroleum Coke Agro bio Sludge Over 250 fuels / fuel mixes used Rejects / RDF Biomass Coal

20 Modular Design allowing for less complex erection

21 Outotec BFB Boiler Vertical Heat Transfer Section Small footprint Plants Retrofits Easy fuels Non-sticky ash properties

22 Renewable Energy Plant Advanced Staged Gasifier Fuel: Construction & Demolition waste Steam: 43 kg/s 108 bar 513 C Electricity 37,5 MWe Start up 2014 Class 1 Renewable Biomass Plant

23 Outotec BAT combustion solutions for over 200 fuels Advanged gasifier The state-of-the-art sustainable solution for converting waste to energy. Sludge Proven in operation at several installations since Meets the most stringent environmental emission limits and complies with the European Union WID (2000/76/EC). Power Production Meets the criteria for the highest ROC banding by the UK Department of Energy and Climate Change. Biomass Stationary fludized bed (BFB) Suitable for wet biomass, agro biomass and sludge incineration. Also inbed tubes available for high heating value fuels Process Heat Rejects Operate with excess air and combines fluidizing air with overfire air -> reduced Nox levels Normally used for power generation MWth / Mwe Fertilizer Circulating Fluidized Bed (CFB) Coal Wide fuel flexibility (Oil shale, RDF, Coal, lignite, large biomass, etc ) Lowest emission levels. Environment In heat & power production, normally used for over 50 MWth / 20 Mwe applications 23

24 Contact Info in FULLREC solution and other issues related to nutrient recycling Director of Business Development Business Line Energy & Environment Outotec (Finland) Oy Rauhalanpuisto 9, PO Box 1000 FI ESPOO, Finland Juhani Anhava Your Questions or Comments, Please