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Under aspects of climate protection the fermentation process in AD-sections of an MBT should be favoured for the separated organic (wet) fraction. Best performing plants are not only separating some recyclables – in addition to separate collection systems – and producing electricity form the biogas but are also utilizing the heat produced in water cooling circuits and exhaust gas heat. MBT-plants are regarded as a suitable solution to reduce methane-emissions from landfills, if such plants are constructed and operated well and using state-of-the-art emission reduction equipment.
A MBT plant is a challenge compared to landfill operation. Operational concept and technical design process, construction and commissioning of a waste treatment plant depend very much on the considerations for risk management. Waste treatment plants like MBT require proper project-preparation. Mainly the mistakes done during the conceptual phase could lead into inefficiency, technical problems and towering costs.
Structural integration into a regional waste management concept, a clear view and realistic concept of later plant operations and the presence of experience and know-how during all phases of preparation and realisation of a MBT are baselines. As not everything can be foreseen in tendering phase, during execution of contract flexibility and compromises are requested. The more a contract is shifting risks to suppliers side the higher costs within the proposals must be expected MBT plants require much more than “just a landfill with some added little technology”! Contributions of many actors are required to achieve a sustainable and well operating plant. There is a lot to do with MBT -plants: Let’s start!
|Copyright:||© Lehrstuhl für Abfallverwertungstechnik und Abfallwirtschaft der Montanuniversität Leoben|
|Source:||Recy & Depotech 2016 (November 2016)|
|Autor:||Dipl.- Ing. Theo Schneider|
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