Water Science and Engineering 2008, 1(1) 78-88  DOI:   10.3882/j.issn.1674-2370.2008.01.008   ISSN: 1674-2370 CN: 32-1785/TV

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mechanical biological waste treatment
process water
municipal solid waste
exhaust air treatment
intensive tunnel rotting
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Intended process water management concept for the mechanical biological treatment of municipal solid waste

D. Weichgrebe1 ;S. Maerker1 ;T. Böning2 ;H. Stegemann3

1. ISAH, Institute for Water Quality and Waste Management, Gottfried Wilhelm Leibniz Universität Hannover, Welfengarten 1, 30167 Hannover, Germany
2. INFA-Ahlen GmbH, Institut für Abfall, Abwasser und Infrastruktur- Management GmbH, Beckumer Straße 36, 59229 Ahlen, Germany
3. egw – Entsorgungs-Gesellschaft Westmünsterland mbH, Estern 41, 48712 Gescher, Germany


Accumulating operational experience in both aerobic and anaerobic mechanical biological waste treatment (MBT) makes it increasingly obvious that controlled water management would substantially reduce the cost of MBT and also enhance resource recovery of the organic and inorganic fraction. The MBT plant at Gescher, Germany, is used as an example in order to determine the quantity and composition of process water and leachates from intensive and subsequent rotting, pressing water from anaerobic digestion and scrubber water from acid exhaust air treatment, and hence prepare an MBT water balance. The potential of, requirements for and limits to internal process water reuse as well as the possibilities of resource recovery from scrubber water are also examined. Finally, an assimilated process water management concept with the purpose of an extensive reduction of wastewater quantity and freshwater demand is presented.

Keywords mechanical biological waste treatment   process water   municipal solid waste   exhaust air treatment   intensive tunnel rotting  
Received 2008-02-04 Revised 2008-03-09 Online:  
DOI: 10.3882/j.issn.1674-2370.2008.01.008
Corresponding Authors: D. Weichgrebe
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