The Borås Plant at the site of Sobacken.
THE SOBACKEN PROJECT
Improving Anaerobic Digestion (AD) of Source-Sorted Householdwaste
In January 1995 the first Swedish full-scale AD plant for the treatment
of source-sorted householdwaste was inaugurated in the municipality of
Borås at the site of Sobacken, Sweden. The main goals of AD are as
follows:
-
reduction of organic substance
-
conservation of nutrients
-
odor reduction
-
hygienization (seeds and pathogens)
-
generation of biogas
The plant is operated in the two-step anaerobic degradation (TSAAD)
mode. For the time being 6'000 t of organic waste are treated annually,
which corresponds to about 70% of the capacity.In co-operation with the plant operator
The
Landfill Group (later renamed the division of Waste Science & Technology) is performing experiments aiming at the improvement
of the process. All factors of investigation are concerning hydrolysis,
as there are:
-
temperature
-
retention time
-
dry substance content
The outcome of this project was published by the Swedish Environment Protection
Agency in the spring of 1998. The report "Biologisk avfallsbehandling i
Borås", Naturvårdsverket Rapport 4864, can be ordered from Naturvårdsverket
Kundtjänst
More about the Sobacken Project:
We welcome Your questions and comments. Please send e-mail to Tippen@sb.luth.se
Last modified: May 05, 1998