While composting of separate collected bio-waste is currently undergoing a renaissance in Germany, sewage sludge composting offers as well the possibility to produce a hygienic soil conditioner and/or secondary raw material fertilizer. This alternative is increasingly interesting, especially to bring back nutrients and organic substances into soils. This paper explains the essential reasons for composting, shows the process conditions and the different composting processes used currently in Germany. The discussion about the heavy metal problem and the production of a high quality fair marketable product leads to the necessity of a quality assurance system, which has been proven to be effective for bio-waste composting in Germany. The necessary boundary conditions and demands for such a quality assurance system for sewage sludge are presented.
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Research Article|
March 01 2008
Compost from sewage sludge – a product with quality assurance system
Martin Kranert;
1Universität Stuttgart, Institute for Sanitary Engineering, Water Quality and Solid Waste Management, (ISWA), Bandtaele 2, D-70372 Stuttgart, [email protected], [email protected]
E-mail: [email protected]
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Gerold Hafner;
Gerold Hafner
1Universität Stuttgart, Institute for Sanitary Engineering, Water Quality and Solid Waste Management, (ISWA), Bandtaele 2, D-70372 Stuttgart, [email protected], [email protected]
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Ingrid Berkner;
Ingrid Berkner
2LAV, Landeswirtschaftliches Verarbeitungszentrum Markranstaedt GmbH, Nordstrasse 15, D-04420 Markranstaedt, Ingrid. [email protected]
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Ertugrul Erdin
Ertugrul Erdin
3Dokuz Eylül University, Environmental Engineering Department, Kaynaklar Campus, 35160 Izmir [email protected]
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Water Practice and Technology (2008) 3 (1): wpt2008008.
Citation
Martin Kranert, Gerold Hafner, Ingrid Berkner, Ertugrul Erdin; Compost from sewage sludge – a product with quality assurance system. Water Practice and Technology 1 March 2008; 3 (1): wpt2008008. doi: https://doi.org/10.2166/wpt.2008.008
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