The hazard of sour gas produced in anaerobic digestion plants

De Rose, Miriana (2019) The hazard of sour gas produced in anaerobic digestion plants. [Laurea magistrale], Università di Bologna, Corso di Studio in Ingegneria per l'ambiente e il territorio [LM-DM270], Documento full-text non disponibile
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Biogas has been recognized to be an alternative energy source to conventional fossil-fuel. It is a way to reduce waste and get energy at the same time. Anaerobic Digestion plants are the main biogas producers, but many safety issues are linked to the process of converting organic matter into energy source. This work of thesis is focused on the hazard of sour gases, hydrogen sulphide and methane in particular, which are biogas-based constituents. The hazard evaluation was conducted to identify the impact, in terms of humans and environment; the characterization and the quantification of the critical effect zone has been carried out. The case studies were evaluated by means Phast programme, a hazard analysis software, and through simulations on the CFD-Computational Fluid Dynamic software, ANSYS FLUENT. Three case studies were implemented, considering mixture compositions of methane and hydrogen sulphide, present in different percentage. The results obtained show that toxicity is the main issue of biogas release in terms of safety distance if the hydrogen sulphide concentration is relevant.

Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
De Rose, Miriana
Relatore della tesi
Corso di studio
Earth resources engineering
Ordinamento Cds
Parole chiave
biogas,hazard,damage zone,CFD,Phast,Fluent,Anaerobic Digestion
Data di discussione della Tesi
19 Dicembre 2019

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