1,721,181 research outputs found
Advanced Aspects of Combustion and Gasification Processes for Thermal Treatment of Municipal Solid Wastes
No full textL'insostenibile invisibilità dei rifiuti speciali
No full textLa gestione dei rifiuti
speciali è un problema
più complesso di quello
dei rifiuti urbani anche
perché il detentore deve
pagare per smaltirli
e può quindi essere
tentato di eliminarli
in modo “improprio”.
La loro gestione è un
problema poco noto
alla maggioranza
dell’opinione pubblica,
di molti amministratori
pubblici e
rappresentanti politici.
Ne consegue un
rischio altissimo di
smaltimenti illegali.
Eppure esperienze
nazionali apprezzate
in tutta Europa
dimostrano che la
gestione dei rifiuti
speciali può avvenire
nella piena sostenibilità
ambientale ed
economica. Ma bisogna
soprattutto investire in
credibilità, garantendo
una comunicazione
tempestiva, trasparente
e corretta che coinvolga
il pubblico non-esperto
in tutti gli stadi delle
analisi decisionali,
dandogli la possibilità,
gli strumenti e le
informazioni corrette
per essere partecipe
delle politiche di
gestione
Gassificazione dei rifiuti solidi urbani: Stato dell’arte dei principali processi e tecnologie
No full text
Process and technological aspects of municipal solid waste gasification. A review
No full textThe paper proposes a critical assessment of municipal solid waste gasification today, starting from basic aspects of the process (process types and steps, operating and performance parameters) and arriving to a comparative analysis of the reactors (fixed bed, fluidized bed, entrained bed, vertical shaft, moving grate furnace, rotary kiln, plasma reactor) as well as of the possible plant configurations (heat gasifier and power gasifier) and the environmental performances of the main commercially available gasifiers for municipal solid wastes. The analysis indicates that gasification is a technically viable option for the solid waste conversion, including residual waste from separate collection of municipal solid waste. It is able to meet existing emission limits and can have a remarkable effect on reduction of landfill disposal option. © 2011 Elsevier Ltd
From waste-to-energy to waste-to-resources: The new role of thermal treatments of solid waste in the Recycling Society
No full textModern technologies of thermal conversion, heat
recovery and air pollution control make state-of-the-art WtE a fundamental
and integrated part of sustainable waste management in the Recycling Society, which uses ‘‘waste . . . as a resource’’. The main goal of modern WtE units has shifted from ‘‘waste treatment’’ to ‘‘resource conservation and recovery’’. Today they could be better
described as Waste-to-Resources (WtR) units, since they are able to
provide a safe recovery of electric and thermal energy, an efficient
recycling of inorganic materials, and a crucial saving of space for
landfilling, in full compliance with the protection of human health
and the environment
Combustion of a Refuse-Derived Fuel and an Ebonite in a Laboratory Scale Circulating Fluidized Bed
No full text
Management of solid wastes from circulating fluidized bed boilers
No full textCirculating fluidized bed boilers are achieving a rapid commercial success. A large part of this success is due to their capability to burn low-grade fuels with reduced emissions of polluting gases. One of the uncertainties facing a larger commercialization of the technology is the generation of relatively large quantities of solid waste. The development of technically and economically viable ash management options is essential in the overall acceptance of the technology
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