- an online platform for anaerobic digestion projects

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  • 1. An Online Platform for AnaerobicDigestion ProjectsbyMEng. MSc. Jol MARANHAO - Founder & Director at Biowatts &Dipl.-Ing.agr.univ. Dajana WIELAND - Co-FounderBaden-Baden, Germany - March 7th 2012

2. biowatts.orgis already available in 7 languagesand more is coming up 3. What is biowatts? 1. an anaerobic digestion calculator (biogas calculator)- built with a business rule engine to allow theimplementation of complicated logic, such as theremuneration schemes for each country (ROI);- a database of substrates that users can extend; 2. a kinetics analyzer tounderstand the influence of thehydraulic retention time and temperature onbiomethane production during digestion; 3. an online biomass marketplace where you can listfeedstock for sale or feedstock that you would like toacquire. best of all, you can use all this services for FREE! 4. 1.1. Easy-to-use biogas calculator Create a FREE Account to save your projectsand results. Login, create a project and add substrates toyour configuration. The calculator relies on an existing databaseof substrates from which you can choose. Ifyou dont find a particular substrate you canadd it to the database. 5. Find and select asubstrate 6. Table view of abiomass configurationwith biomethane production results and ROI 7. Map view of the substratesBiowatts calculates distances from your available feedstock to the biogas plant. 8. Charts view of a biomass configuration 9. 1.2. Easy-to-use biogas calculator Users can then exchange, discuss, compareestimated results and practical on-sitemeasurement yields through the forum add-in. This public practical knowledge will continuouslygrow and user will vote on the best information.It is anticipated that best practices and on-sitethumb rules about substrates and how toimprove biogas yield will emerge. 10. 2. Kinetics AnalyzerTo address more advanced requirements, Biowatts implements a kinetics analyzer based on Y. R. Chen model (1) and P. Harris Digicalc calculator (2). You can choose from a shorter list of waste types (animal manure) and try different settings for hydraulic retention time (HRT), temperature (TC), volatile solids concentration (VSC) and the volume of substrate added daily to the digester.The analyzer produces a set of practical 3D biomethaneresponse surface plots that you can move around andexplore interactively to guide you in finding out bestsettings for your installation. 11. Kinetics Analyzer 12. Biomethane productionf(VSC, HRT) 13. Biomethane productionf(TC, HRT) 14. Max. specific growth rate 15. Kinetic parameter 16. 3.1. Online Biomass Marketplace Find the closest potential Buyers and Sellersfor your feedstock by taking away the biomassmarket barriers and allow global mapping(interactive map) of the available feedstockand demand. 17. Marketplace welcome page 18. Map view of the marketplace listings Biowatts encouragesmore trades of organicwaste and motivatesmore biogas plantprospects and siteinvestigation in the areaswherefeedstock isavailable. Today you can sell or giveaway your feedstock(providers) or advertisefor wanted feedstock(buyers). 19. 3.2. Create a listing for your feedstock To create a listing, choose asubstrate from the database (oradd your own), indicate the priceper ton, the quantity availableand periodicity(daily, weekly, monthly ), thelocation and the transportationdetails. The buyers and providerscan discuss the trading privatelythrough the platform and disclosetheir respective contacts tocomplete the deal. Soon we will also add thepossibility to trade digestates(products of anaerobic digestion). 20. Partners 21. REFERENCES "Kinetics Analysis of Anaerobic Digestion ofPig Manure ant its design Implications Y.R.Chen - Agricultural Waste 8 (1983) 65 81 "Digicalc by Paul Harris - University ofAdelaide