Landfill gas energy recovery: economic and environmental evaluation for a study case
The present study is concerned with the economic and environmental evaluation of landfill gas exploitation system in reference to an existing study case landfill, located in Tuscany Region (Italy).
Landfill gas production, during the different life phases of the study case landfill, has been predicted according to a mathematical model, based on first-order decay equation, considering different behaviours for different types of biodegradable wastes. On the basis of the landfill gas collected yearly it is possible to estimate the appropriate size and number of reciprocating engines required every year for the landfill gas exploitation. As a matter of fact, during the energy recovery time, different combinations of engine sizes and numbers can be adopted to exploit the landfill gas: the selection of the final combination was carried out with the aim of maximising the profits coming from the balance of energy system investment and maintenance costs and electric energy selling earnings. Two scenarios were compared from an economic point of view, highlighting the one with the maximum economic profits. The scenarios were also compared from an environmental point of view, evaluating the overall contribution to Greenhouse Effect from escaped landfill gas, collected and combusted landfill gas and recovered electric energy avoided emissions.
| Copyright: | © IWWG International Waste Working Group | |
| Quelle: | General Session B (Oktober 2007) | |
| Seiten: | 11 | |
| Preis inkl. MwSt.: | € 11,00 | |
| Autor: | Andrea Corti  Lidia Lombardi Luana Frassinetti | |
| Artikel weiterleiten | In den Warenkorb legen
| Artikel kommentieren |
Diese Fachartikel könnten Sie auch interessieren:
Use of a Fabric Filter for the Sorption – What Has to be Considered? – Experiences and Solutions –
© TK Verlag - Fachverlag für Kreislaufwirtschaft (9/2016)
In almost all flue gas cleaning systems installed at WtE-plants, the fabric filters are central components. A good example for this is the conditioned dry sorption process which is currently preferentially used in Europe. Within the filter not only the particles and the particulate heavy metals are separated from the gas flow, but also all reaction products resulting from the separation of gaseous pollutants such as HF, HCl, SOx, heavy metals and in this respect particularly Hg as well as PCDD/PCDF. In addition to this the fabric filter constitutes an excellent reaction chamber with high additive powder density in the filter cake.
Infrasound Solution for Fouled SCR and the Economizer in World’s Largest Waste-to-Energy Boiler
© TK Verlag - Fachverlag für Kreislaufwirtschaft (9/2016)
Infrafone, with headquarters in Stockholm, Sweden, is using infrasound as a soot cleaning method and has plenty of experiences from various fuels and applications. The technical development has resulted in a product with much higher acoustic power than any other similar products on the market and acoustic modelling software that is unique. Infrasound cleaning increases the efficiency, the availability and the lifetime of industrial and marine boilers. In this text we start by describing the properties of infrasound and the product, while finishing by looking deeper into a couple of recent results obtained on waste to energy boilers.
Significance of and Challenges for Flue Gas Treatment Systems in Waste Incineration
© TK Verlag - Fachverlag für Kreislaufwirtschaft (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.
Kalk & Co. – moderne Additive zur Rauchgasreinigung
© OTH Amberg-Weiden (7/2009)
Seit den 1980er Jahren ist die Deutsche Kalkindustrie auf dem Umweltsektor aktiv. Walhalla Kalk begann bereits 1977. Die chronologische Entwicklung des Bereiches Umwelt zeigt Bild 1. Gesetzesvorschriften sowie strengere Auflagen der Betreiber bewirkten eine stetige Weiterentwicklung unserer Produkte. Tabelle 1 zeigt die derzeit gültigen Grenzwerte nach der 17. BImSchV sowie einen Sonderfall für genehmigte Grenzwerte.
Aufstellung, Verbrennungsluftversorgung und Abgasabführung von Gasfeuerstätten
© wvgw Wirtschafts- und Verlagsgesellschaft Gas und Wasser mbH (5/2008)
Das DVGW-Arbeitsblatt G 600, die DVGW-TRGI, wurde in den Abschnitten „Gasgeräteaufstellung“, „Verbrennungsluftversorgung“ und „Abgasführung“ neu geordnet, ergänzt und um das bisherige DVGW-Arbeitsblatt G 670 „Gasfeuerstätten und mechanische Entlüftungseinrichtungen“ erweitert.
Erneuerbaren Energien gehört die
Zukunft: Blockheizkraftwerke
für Energie aus Biomasse
