14 Oct 2000
Sponsors
 Institute
of Advanced
Studies, UN Univ., Japan AEON Foundation,
Japan |
Material Flow Analysis of Integrated Bio-Systems (March-October 2000) |
Organized by:
Integrated
Bio-Systems Network
UNU/IAS
Alumni Association, UN Univ., Tokyo
with the assistance of : MFA
Conference Planning Group
UNESCO
Microbial Resources Centre, Stockholm |
Anaerobic Digestion of Organic Wastes -
Process Parameters and Balances in Practice
Martin Kranert and Kai Hillebrecht
Institute of Waste Management and Environmental Monitoring
University of Applied Sciences Braunschweig/Wolfenbüttel
Wolfenbuttel, Germany
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| Keywords:
anaerobic biowaste treatment (digestion, fermentation), system parameters, mass flux, energy flux, carbon dioxide balance Abstract Over the last years anaerobic methods treating wastes got an increasing importance. Nowadays appr. 1,5 Mio Mg/a of organic wastes are digested in the EU, partly with liquid manure and sewage sludge (Co-digestion). In this report there will be a short documentation of the state of biowaste digestion in Germany first. On two examples methods with different research and operating results are shown. Anaerobic digestion systems for waste treatment can be classified as
follows:
It is to distinguish between plants only for biowaste-digestion and co-digestion processes normally with agricultural wastes from animal farming or sewage sludge. There are about 8 Mio Mg/a biowastes treated in Germany. 85% are composted 15% are treated anaerobically. At the moment there are 44 plants for anaerobic treatment in Germany with a capacity of 1,2 Mio. Mg/a. Following examples are shown: The digestion plant in Braunschweig-Watenbuttel (D) (20.000 Mg/a) will be used for balancing the energy and mass flux. The trend of relevant system parameters as biogas production, organic acids, decomposition, etc. for a defined period will be shown. For the combined plant for composting and digestion of the Biogenes Zentrum Peine (D) (24.000 Mg/a) the balancing of mass flux was made and a report about sand content in bio waste will be added. The report will be concluded by a carbon dioxide balance and a resume about the relevancy of different biological waste treatment processes for the global climate. |
| (1) | Sergio Piccinini | Centro Ricerche Produzioni Animali - CRPA, (Research Center for Animal Production), Reggio Emilia - Italy |
| (2) | Jan K. Dobelmann | University of Karlsruhe / SLFA Neustadt, Germany |
 Prof.
Dr.-Ing. Martin Kranert
University of Applied Sciences Braunschweig/Wolfenbüttel (Fachhochschule Braunschweig / Wolfenbuttel, Fachbereich Versorgungstechnik) Institute of Waste Management and Environmental Monitoring (Institut fur Abfalltechnik und Umweltuberwachung- IfAU) Salzdahlumer Strasse 46-48, 38302 Wolfenbuttel, Germany FON: ++49 5331 939 721 FAX:++49 5331 939 744 E-mail: m.kranert@fh-wolfenbuettel.de 1985 to 1993 Ingenieursozietät Abfall, Professor Tabasaran und
Partner, Stuttgart; technical manager of the office Stuttgart; expert and
project leader of reports, consulting and planning projects in the field
of waste management for domestic and international organizations, ministries
and regional administrative bodies.
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 Dipl.-Biol.
Kai Hillebrecht
Fachhochschule Braunschweig/Wolfenbüttel Institut für Abfalltechnik und Umweltüberwachung (IfAU) University of Applied Sciences Braunschweig/Wolfenbüttel Institute of Waste Technology and Environmental Control (IfAU) Am Exer 4 Salzdahlumer Str. 46/48, 38302 Wolfenbüttel, Germany FON ++49-5331-939 737 FAX ++49-5331-939 744 E-mail: kai.hillebrecht@fh-wolfenbuettel.de Biologist with additional qualification in environmental engineering.
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