Institute for Sanitary Engineering, Water Quality and Solid Waste ...

Chair of Hydrochemistry and Hydrobiology
Biogas residue - a safety risk in organic farming?
Fig: Zebra mussels (Dreissena polymorpha) stick on a
piece of wood. The largest specimens examined reached
a shell length of 1.8 cm.
Financing institution:
INTERREG IV
Principal:
Landesanstalt für Umwelt, Messungen und Naturschutz
Baden-Württemberg (LUBW)
Project partner:
Dr. Heinz Gerd Schröder, Institut für Seenforschung
des Landes Baden-Württemberg, Langenargen
Wasserwirtschaftsamt Kempten
Vorarlberger Institut für Umwelt und Lebensmittelsicherheit
Amt für Umwelt der Kantone St. Gallen und Thurgau
Amt für Gesundheits- und Verbraucherschutz der
Kantons St. Gallen
Duration:
01/2008 - 10/2009
Contact:
Prof. Dr. rer. nat. habil. Jörg W. Metzger,
Dipl.-Ing. Jörg Alexander Pfeiffer
Aim of the project is to determine the potential of biorest
from biogas plants as fertilizers in organic farming.
The focus is is thereby put on organic pollutants,
pesticides, heavy metals, Escherichia coli (E.coli) and
Bacillus cereus (B. cereus). For this during one year
on a monthly basis samples of a norwegian biogas
plant are taken and analysed. The biogas residue is
afterwards composted and the compost is sampled
likewise. For the determination of the bio-availability
plants and compost worm samples are analyzed, in
addition the survival of the found bacteria in grain and
milk products is observed.
In this joint project the ISWA is responsible for the
analysis of the organic pollutants.
Container for the composting of biowaste and digestate
Financing institution:
Research Council of Norway, P.O. Box 2700 St. Hanhaugen,
0131 Oslo
Project partner:
Bioforsk (Norwegen), Norwegian University of Life
Sciences (UMB), und der University of Helsinki
(Finnland).
Duration:
01/2008 – 12/2010
Contact:
Prof. Dr. rer. nat. habil. Jörg W. Metzger,
Dipl.-Chem. Jessica Stäb
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