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Ecoefficiency Comparison of the Anaerobic Digestion, Composting and Incineration of Bio-Waste

Whereas for a long time, the waste industry and waste management interest was focussed on safe and environmentally compatible disposal of unavoidable and recyclable waste, today the priority is renewable energy generation, reduction of greenhouse gas emissions and improving recycling management of recoverable materials. In this context, this paper deals specifically with bio-waste. Bio-waste produced in Germany is divided into the following most important partial flows:
• Bio-waste and green waste (garden cuttings, etc.) from municipal collection
• Landscape maintenance materials
• Other organic waste, especially food waste from industry and commerce

The most relevant partial flow in terms of quantity and with a view to current waste management discussions are bio-waste and green waste from municipal collection. Today, each year around nine million tonnes of bio-waste and green waste is collected separately from households throughout Germany and is recycled and/or used for energy recovery. The German closed cycle management act with the obligation to collect bio-waste separately from 2015 is the driving force behind recovering additional quantities, which until now remain in the residual waste and in most cases are recovered thermally. Estimates quantify the untapped organic potential from residual waste as being an additional four to five million tonnes.

All kinds of different treatment and alternative processes and options for organising the collection systems are available due to the collection and treatment of bio-waste. The treatment plants and disposal offers for bio-waste are therefore organised in very different ways in the towns, cities and rural districts.

Against this background,on behalf of the Bavarian State Ministry of the Environment and Consumer Protection, the bifa environmental institute updated the 2010 analysis of the ecoefficiency potential of bio-waste treatment methods in Bavaria and further developed it with the focus on analysing optimisation potential.

Copyright:	© TK Verlag - Fachverlag für Kreislaufwirtschaft
Quelle:	Waste Management, Volume 4 (November 2014)
Seiten:	8
Preis:	€ 0,00
Autor:	Dipl.- Ing. Thorsten Pitschke Prof. Dr.-Ing. Wolfgang Rommel Dipl.-Ing. René Peche Dr. Dieter Tronecker Dr. Siegfried Kreibe
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