Emissions from Waste-to-Energy in Germany: Development and status today

“Waste incineration is an ancient technology, the installations are badly polluting the environment and threatening public health” – opinions like these are still common among the general public in Germany, despite the fact that great technological advances have been made and that modern Waste-to-Energy plants now have minimal environmental impacts.

This attitude is partly due to mistakes made in the past. In the early stage of the ecology movement in the 1970 and 1980s operators, and the incineration lobby in Germany at the time, did not respect the justified concerns and demands of the public for environmentally friendly waste treatment installations. On the contrary, they tried to appease the critics and denied the existence of ecological problems coming from the incineration plants. The public opposition formed at that time has not yet grasped the technological improvements that have been made, and this can usually be observed when new projects are discussed.
This article aims to give an overview of the development of Waste-to-Energy (WtE) technology and to provide reliable information about the current technological status of Waste-to-Energy facilities in Germany, which are characterized by the high standard of flue gas treatment systems used at the plants.
The article also outlines the technological development of WtE over the last decades and its current status in comparison to other thermal waste treatment methods – co-incineration in cement kilns and in power plants – are discussed based on the emission of pollutants.



Copyright: © Eigenbeiträge der Autoren
Quelle: Jahrgang 2013 (Dezember 2013)
Seiten: 9
Preis inkl. MwSt.: € 0,00
Autor: Prof. Dr.-Ing. Peter Quicker
Johann Hee

Artikel weiterleiten Artikel kostenfrei anzeigen Artikel kommentieren


Diese Fachartikel könnten Sie auch interessieren:

New Waste-to-Energy Facility Energy Works Hull, United Kingdom
© Thomé-Kozmiensky Verlag GmbH (9/2016)
Energy Works Hull (the Project) is a milestone project for the UK’s waste and renewable energy sector. It will be one of the largest gasification facilities receiving MSW in the UK, indeed in Europe. It is one of the first advanced conversion technology Projects to receive its renewable electricity subsidies through a Contract for Difference, the mechanism by which the UK Government determined to move from Renewable Obligation Certificates following its Electricity Market Reform process. It also plays a significant part of the urban regeneration of the City of Hull. The level of community engagement and benefit has resulted in the project receiving a GBP19.9M grant from the European Union’s Regional Development Fund.

Enhancing of the Energy Efficiency of an Existing Waste Incineration Plant by Retrofitting with a District Heating Network
© Thomé-Kozmiensky Verlag GmbH (9/2016)
The German Cycle Economy Act (Kreislaufwirtschaftsgesetz KrWG) and discussions on the turn of local energy policies led to intensive examination of options for optimising utilisation of heat produced by the waste incineration plant (MKW) in Weißenhorn. This has been carried out by the waste management firm(Abfallwirtschaftsbetrieb – AWB) of the district of Neu-Ulm over a long period of time. This was also prompted by knowledge that utilisation of already generated energy in the form of combined heat and power generation (CHP) is one of the most efficient ways of achieving climate protection targets. This results from considering which courses of action are available for climate protection.

International Experience of Risks Sharing between Public and Private Entities in Energy-from-Waste Plants Construction
© Thomé-Kozmiensky Verlag GmbH (9/2016)
Imagine that you are the mayor of a city named Metropolis and are in Charge of School logistics. Before doing so, you might have to ask yourself a few essential questions. What kind of transportation will you provide? Who will it benefit: students, staff or both? Where will the service be provided? When will it be provided: in the evening, morning? And finally, how much will it cost? All these essential questions need to be answered before starting to implement this project and to buy your buses. By doing so, planning, financing, building and operating the chosen mean of Transportation will become an easier task. After that, your political decisions will direct the choice of implication of private sector on the different aspects of your project.

Application of Modified NiCrMo Alloy Systems for Boiler Tube Surface Protection in Waste-to-Energy Environments
© Thomé-Kozmiensky Verlag GmbH (9/2016)
Internationally, Waste to Energy and Incineration markets continue to grow in capacity as fossil fueled facilities decline and nuclear generation is curtailed. With this comes a greater need to burn more corrosive materials combust at higher temperatures and extract more energy. The reliability burden that this places on operators of plants is re-opening opportunities for thermal spray solutions as a cost effective solution for boiler tube protection. Where maintenance costs, opportunity costs and access restrictions may preclude alternative in-situ technologies, thermal spray technology may fill a gap in providing new reliable and flexible process and materials technologies for both mid- and long-term protection of water wall and superheater tubes. While historically thermal spray coating solutions have had a spotty record in waste to energy environments, advances in both process and materials technology specifically for WTE environments is such that coating performance now approaches the performance of high alloy wrought materials. This is verified through accurate laboratory modeling and scale tests and trials conducted by OEM’s and plants.

Significance of and Challenges for Flue Gas Treatment Systems in Waste Incineration
© Thomé-Kozmiensky Verlag GmbH (9/2016)
Flue gas cleaning downstream of waste incineration plants had its origins in the increased construction and deployment of such plants to counter rising air pollution in the nineteen-sixties. Back then, the ever-growing burden on the environment caused lawmakers to start enacting emission limits for air pollution control. An unceasing series of environmental scandals and increasingly better analytical methods and measuring instrumentation led to a constant reduction of the emission limits and, consequently, to ongoing adjustment and further development of the necessary process stages in flue gas cleaning. As a result, today minimum emissions can be reached even under the challenging condition of deployment of a very inhomogeneous fuel (waste) and, hence, waste incineration today is no longer a key contributor to air pollution. Today, the need for flue gas cleaning is not called into doubt anymore and has long become a matter of course in the industry and in society at large. Apart from ensuring efficient elimination of noxious gases, the focus of today’s further developments is on issues such as energy efficiency, minimization of input materials and recovery and recycling of by-products from flue gas cleaning as valuable raw materials. These issues are also deemed to be key challenges, especially when it comes to selecting sites for new plants in such a manner that potential synergies can be exploited. Such aspects will also have to be considered in the plans for the predicted mega-cities of the future.

Name:

Passwort:

 Angemeldet bleiben

Passwort vergessen?

Der ASK Wissenspool
 
Mit Klick auf die jüngste Ausgabe des Content -Partners zeigt sich das gesamte Angebot des Partners
 

Selbst Partner werden?
 
Dann interessiert Sie sicher das ASK win - win Prinzip:
 
ASK stellt kostenlos die Abwicklungs- und Marketingplattform - die Partner stellen den Content.
 
Umsätze werden im Verhältnis 30 zu 70 (70% für den Content Partner) geteilt.
 

Neu in ASK? Dann gleich registrieren und Vorteile nutzen...