Oliver Vigano

The LochheadDry Fermentation Facility

The BIOFerm System of Dry Fermentation• Charging and emptying of fermenter with a front loader or similar equipment• The plant is completely controlled via an SPS control system• Malfunctions are identified by the control system, registered and the plantoperator is notified© Schmack Biogas GmbH17.10.2012Seite 4

The BIOFerm System of Dry FermentationAfter charging of the fermenter, percolate with methane bacteria is sprinkledover the substrate and the substrate is fermented for four weeks at 40°C.Biogas is generated.© Schmack Biogas GmbH17.10.2012Seite 5

The BIOFerm System of Dry Fermentation• The integrated gas utilising systems are either supplied with biogas via a gascontrol path with gas compressor and gas dehumidified or a decentralized via abiogas pipe• A small portion (ca. 5%) of the generated heat is used as process heat in theplant(in floor radiant heat of fermenter, heating of building or similar)• The surplus heat is available for use externally• In the case that the heat cannot be utilized the CHP, or biogas boilerhave emergency cooling equipment© Schmack Biogas GmbH17.10.2012Seite 6

Opening the Fermenter• Opening of the fermenter after 28 days• No free water• No smell of volatile fatty acids• Organic fraction is broken down from 90% to 50%• Total solids wet down from 30% to 17%© Schmack Biogas GmbH17.10.2012Seite 7

The BIOFerm System of Dry FermentationProcess Flow Diagram© Schmack Biogas GmbH17.10.2012Seite 8

Advantages BIOFerm• No rotating parts• No pre-treatment• The system tolerates impurities such as plastic, metal or wood• Low parasitic load• No additional water is needed• High methane yields, low sulphur content• High degree of degradation© Schmack Biogas GmbH17.10.2012Seite 9

Lochhead Dry AD Facility•Food and Green waset input •1.5 MW CHP output •PAS 100 Compost

Lochhead Dry AD Facility (Inputs)• The Lochhead AD facility will be first dry fermentation facility in the UK;• The facility will process combined food and green waste from 100,000 households in Fifein Scotland;• This amounts to 40,000 tonnes per annum;•The facility will be supplemented with 3,000 tonnes of source-separated commercial foodwaste;• This allows the Council to continue with co-mingled collections and thus avoid separatefood collections with a considerable saving on transport costs and carbon emissions;•The combination of the green waste with food provides for 30-40 % increase in the biogaspotential over food waste digestion alone;• The Bioferm batch dry fermentation system coupledto the Celtic in-vessel composting system is the idealsolution for bio-waste digestion.

Lochhead Dry AD Facility (Outputs)• The facility will generate between 800 kWel/h and 1,600 kWel/h due to the seasonality inthe presentation of the bio-waste;• The Lochhead landfill site is connected to a district heating system that provides hot waterto the town of Dunfermline. The hot water output from the CHPs will provide 700-1,400kWth/h of supplemental to this system;• Due to the combination of in-vessel composting and dry fermentation, the AD plant willgenerate approx. 15,000 tpa of PAS 100 compost as opposed to a PAS 110 digestate;•2000 t/a RDF•3000 t/a Mulch for landfill• The construction of the AD plant at the landfill site will result in the diversion of 43,000tonnes from the landfill while reducing carbon and odour emissions from the site inaccordance with the Zero Waste Scotland targets

Lochhead, Dry AD Facility• Contract won by JV between HA O’Neill and Luddon Construction inJuly 2011(Lochhead Energy);•Design commenced in July 2011;• Construction started in April 2012;• Construction due to be completed in June 2013;• Commissioning of plant until hand-over in December 2013.

Lochhead 3-D Modelling

Bio-waste Delivery

Bio-waste Shredding

Fermenter Filling

Biogas Collection

CHP

Aerated Static Pile Composting

Tunnel Composting (ABPR)

Final Screening

Lochhead Construction

Thank you very much for your attention!© Schmack Biogas GmbH17.10.2012Seite 24

Contact:Schmack Biogas GmbHBIOFerm GmbHViessmann GroupOliver ViganoInternational Business DevelopmentBayernwerk 892421 SchwandorfGermanyPhone: +49 9431 751 0E-Mail: oliver.vigano@schmack-biogas.com© Schmack Biogas GmbH17.10.2012Seite 25