New Ways to Energy. Energy Production of Renewable Resources and Bio-Waste in Biogas Plants. Hese Biogas GmbH Hese Biogas GmbH

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1 New Ways to Energy Energy Production of Renewable Resources and Bio-Waste in Biogas Plants Hese Biogas GmbH Hese Biogas GmbH

2 Content Introduction to Hese Biogas Examples Bio-Waste Plants Examples Agricultural Plants Hese Technology Summary Hese Biogas GmbH

3 Member of Schmack Biogas AG Biogas upgrading Combined heat and power unit Agitator technologie Biowaste digestion Biogasproduction Competence under one roof Hese Biogas GmbH

4 Our Scope of Supply One shop one stop! Technical concepts and planning Economic consultation, optimization and financing Construction of turn-key plants as general contractor Full after sales service Hese Biogas GmbH

5 Broad product and service portfolio Planning and construction Service and operation Own operation Start of Planning Construction Service Operation Full operation Energy supply operation Planning and development of biogas plant Approval process Identification of suitable sites Provision of documents required for financing First time purchase of feedstock Sourcing Construction and assembly Supervision Final acceptance Coordination of access to the electricity grid Infrastructural works Establishment of bacteria flora Optimisation of biological process Substrate management Controlled rampup into test run Adjustment according to customer requirements Operation workshop Documentation Repair of deficiencies Microbiological services and optimisation (Fit for Biogas) laboratory analytics laboratorybased long term supervision Technical service technical inspections Upkeep Maintenance Incident management Remote monitoring centre EUVIS Assumption of microbiological service technical service Remote monitoring centre EUVIS Advise regarding feedstock logistics marketing of the produced energy Assumption of full operation Sourcing of feedstock Logistics Operation of Plant Marketing of the produced energy Remote Monitoring centre EUVIS Energy production through own biogas power plants (under construction) Hese Biogas GmbH

Examples of Schmack Services Proprietary Biotech Laboratory Proprietary biotech laboratory in operation since 1997 Certification by the German Certification Council acc.

6 Examples of Schmack Services Proprietary Biotech Laboratory Proprietary biotech laboratory in operation since 1997 Certification by the German Certification Council acc. to DIN ISO/IEC 17025:2005 Ongoing analysis of all important process parameters and testing of fermentation residues As per March 2006 the company has processed more than 17,500 fermentation analyses, roughly 4,000 new fermentation analyses p.a. are added to the database The incorporation of the enzyme mix "Optimase" developed by Schmack Biogas will triple the energy output (shortening the fermentation period) of existing plants in the next 5 years Co-operation with research facilities/ integration of new technologies/ applications (ORC-process/ natural gas substitution) Adding of enzymes and micro-organisms to improve efficiency of biogas plants acceleration of the biological fermentation process increase in average utilisation increase in energy output per unit of feedstock Hese Biogas GmbH

7 Examples of Schmack Services R & D Pilot Plants Microbiology Totfärbung Phasenkontrast Methanogene Lebendfärbung Hese Biogas GmbH

Examples of Schmack Services Remote monitoring of biogas plants via EUVIS Continuous monitoring: 24 hours, 365 days a year Recording of all data relevant to the process Continuously expanding pool of

8 Examples of Schmack Services Remote monitoring of biogas plants via EUVIS Continuous monitoring: 24 hours, 365 days a year Recording of all data relevant to the process Continuously expanding pool of data --> rising learning curve and experience curve Trends are detected and long downtimes and costly servicing are therefore avoided Short, defined response times thanks to online monitoring Security for operators and banks Easier to obtain finance EUVIS in Germany Hese Biogas GmbH

9 What is biogas anyway? Biogas typically refers to a (biofuel) gas produced by the anaerobic digestion or fermentation of organic matter incl. manure, sewage sludge, municipal solid waste, biodegradable waste, biodegradable feedstock, renewable raw materials under anaerobic conditions Hese Biogas GmbH

10 Typical composition of biogas Methane, CH % Carbon dioxide, CO % Nitrogen, N2 < 2% Hydrogen, H2 <1% Hydrogen sulphide, H2S 0-3% Oxygen, O2 <2% Hese Biogas GmbH

11 Biogas ist not natural gas Hese Biogas GmbH

12 Biogas production process Hese Biogas GmbH

13 Biogas a multi-talent Biogas offers a high market Biogas Electricity Heat Fuel Gas supply Hese Biogas GmbH

14 Classic Conversion Biogas = > Electricity Internal heat usage approx % Biogas plant Biogas 100 % CPHU Thermal energy 50% Electrical energy 50% Electrical energy 40 % Potential heat usage by external customer 40% Grid Losses 10 % Hese Biogas GmbH

15 Biogas plant with Biomethane Production Heat 40 % Pool / Spa CPHU Electrical energy 40 % Grid / Feed-in tariff Heat 40 % 100 % Biogas plant Biogas Gas treatment Biomethane Gas injection School CPHU Electrical energy 40 % Grid / Feed-in tariff Heat 40 % Townhall CPHU Electrical energy 40% Grid / Feed-in tariff Hese Biogas GmbH

16 Content Introduction to Hese Biogas Examples Bio-Waste Plants Examples Agricultural Plants Hese Technology Summary Hese Biogas GmbH

17 Biogas Plant Herten, Germany 1998 Gas buffer CHP s Machine hall Composting hall Reception hall Hese Biogas GmbH

18 Biogas Plant Herten, Germany 1998 Input: t/a curb side collected organic waste Digesters: 3 x 500 m³ CHP: 2 x 258 kw Hese Biogas GmbH

19 Biogas Plant Werlte, Germany 2002 Input: t/a manure t/a organic waste t/a Digesters: 2 x m³ CHP: 2 x kw Hese Biogas GmbH

20 Biogas Plant Werlte, Germany 2002 Dual purpose tanks Digesters Input tanks Storage tanks CHP units Reception hall Hese Biogas GmbH

21 Biogas Plant Werlte, Germany 2002 Digesters Pasteurisation tanks Reception hall Input storage tanks Office / Control room Storage tanks Hese Biogas GmbH

22 Biogas Plant Surwold, Germany 2002 Input: t/a manure t/a organic waste t/a Digesters: 1 x m³, 2 x 500 m³ CHP: 1 x 626 kw, 1 x 260 kw Hese Biogas GmbH

23 Biogas Plant Surwold, Germany 2002 Digester Reception hall Input storage tank Hese Biogas GmbH

24 Biogas Plant Zülpich, Germany 2005 Input: t/a food waste Desulphurisation Digester: 1 x m³ CHP: 1 x kw Hese Biogas GmbH

Biogas Plant Lüneburg, Germany 2007 Digester 1+2 Dual purpose tank CHP plant 2 x 1.

25 Biogas Plant Lüneburg, Germany 2007 Digester 1+2 Dual purpose tank CHP plant 2 x kw Pasteurisation Reception hall Bio-filter Input tanks t/a food waste Hese Biogas GmbH

26 Content Introduction to Hese Biogas Examples Bio-waste Plants Examples Agricultural Plants Hese Technology Summary Hese Biogas GmbH

27 Agricultural plant (NAWARO) Storage tank Digester Liquid Input Walking floor Technic housing Dual purpose tank CHP + gas torch Hese Biogas GmbH

28 Biogas Plant Plätz I & II, Germany 2005 Input: t/a manure t/a corn silage Digester: 2 x m³ CHP: 2 x 537 kw Hese Biogas GmbH

29 Biogas Plant Mehrin, Germany 2007 Input: t/a maize silage Digester: 1 x m³ CHP: 1 x 716 kw Hese Biogas GmbH

30 Biogas Plant Rossau, Germany 2007 Input: t/a maize silage Digester: 1 x m³ CHP: 1 x 716 kw Hese Biogas GmbH

31 Content Introduction to Hese Biogas Examples Bio-waste Plants Examples Agricultural Plants Hese Technology Summary Hese Biogas GmbH

substrate Save avoidance of swimming and sinking

32 Digester with central stirrer Smooth stirring: no disturbance of biology Permanent digestion of the substrate Save avoidance of swimming and sinking layers Low electrical power Hese Biogas GmbH

External Heat Exchangers No hot heating surfaces inside the digester => no disturbance of micro organism, no incrustation Temperature control by circulating Cleaning/Maintenance without

33 External Heat Exchangers No hot heating surfaces inside the digester => no disturbance of micro organism, no incrustation Temperature control by circulating Cleaning/Maintenance without emptying/opening of digester External heat exchangers (helix or double helix): Cleaning and trouble shooting is easy No disturbance of micro organism by cold substrate when feeding Hese Biogas GmbH

Desulphurisation by controlled addition of air Storage of digestate until

34 Dual purpose tank / storage tank Digestate and biogas is stored together Air supported roof of polyester fabric Submersible motor-driven stirrer Desulphurisation by controlled addition of air Storage of digestate until agricultural usage Foil Roof to prevent odor emissions (optional) Hese Biogas GmbH

Combined Heat & Power Plant Gas Otto engines, efficiency: 36 41 % Containerized modules:

35 Combined Heat & Power Plant Gas Otto engines, efficiency: % Containerized modules: fast installation, easy changeable, sufficient noise reduction Hese Biogas GmbH

36 Control system Automatic programmable control system with PC as operator interface External supervision by remote control and SMS messaging Hese Biogas GmbH

37 Motivation for Digestate Processing Manure Energy Crops, Co-Ferments, Biogas plant Biogas Power-Generator Digestate Storage Local Work Up and simplified use! What to do? Shipping & disposal of digestates & manure is a threatening bottleneck Hese Biogas GmbH

significantly Distribution of digestate to agricultural areas is limited

38 Today: Conventional use of Digestates Expensive building of storage tanks for digestate needed Dewatering with separators does not reduce volume significantly Distribution of digestate to agricultural areas is limited Shipping digestate into other places is costly and a future bottleneck Hese Biogas GmbH

Target of Digestate Processing Target Saving transport cost (fuel, machine & labour hrs) Reducing digestate volume significantly Recovery of the water Utilization of nutrients in the

39 Target of Digestate Processing Target Saving transport cost (fuel, machine & labour hrs) Reducing digestate volume significantly Recovery of the water Utilization of nutrients in the digestate Applied Process Technology Three effective separation units Two effective concentration units Well adjusted unit operations Low energy consumption Hese Biogas GmbH

40 Flow Chart of Digestate Processing PSS Coarse Grain Thin separate VS Digestate t/a 3 % TS Solid t/a Storage Fermenter Ni-MF Thin separate Filtrate H 2 SO 4 NR Feed RO Battery Limits IX Permeat RO Clean water t/a Concentrate 3.000t/a Hese Biogas GmbH

41 Result of Digestate Processing Digestate Processing delivers 3 useable products: 1. Separated solid (15%), useable as fertilizer compost 2. Liquid nutrient rich concentrate (15%), useable as NPK fertilizer 3. Clean water (70%), direct dischargeable or recycleable into process And more : Transport effort reduced by 70% Storage capacity reduced by 70% Hese Biogas GmbH

42 Content Introduction to Hese Biogas Examples Bio-waste Plants Examples Agricultural Plants Hese Technology Summary Hese Biogas GmbH

43 Conclusions Biogas fits ideal to natural material and energy flow Biogas has a huge potential The utilization of this potential requires adequate conditions Matured technique for safe and reliable Biogas plants is available Hese Biogas GmbH

44 Hese Biogas: Your Partner Hese Biogas GmbH

45 Hese Biogas GmbH Thank you for your attention! We look forward to cooperating with you! Hese Biogas GmbH

Anaerobic Digestion in Orkney Pros and Cons

Anaerobic Digestion in Orkney Pros and Cons What is Anaerobic Digestion? Anaerobic digestion (AD) is a managed biological process in which biodegradable waste is broken down by naturally occurring micro-organisms