Allestimenti di reattori multistadio per la digestione anaerobica dei reflui agro-industriali e confronto con processo convenzionale

Malerba, Matteo (2011) Allestimenti di reattori multistadio per la digestione anaerobica dei reflui agro-industriali e confronto con processo convenzionale. [Laurea magistrale], Università di Bologna, Corso di Studio in Chimica industriale [LM-DM270]
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Abstract

This study fits into the context of activities aim at waste bioremediation and valorization through the production of energy according to principles of environmental sustainability. The experimental work was carried out at the laboratories of the Department of Civil Engineering, Environmental and Materials (DICAM) of the Faculty of Engineering. The main objective was to enhance the treatment of high organic loading waste, such as manure and cheese whey, through advanced anaerobic digestion systems in order to obtain biogas rich in methane. On the basis of the premise that the environmental conditions pertaining in most anaerobic wastewater digesters are not optimal for both fermentative and methanogenic microorganisms, the research was particularly focused on the implementation of two-phase anaerobic digesters. In fact a two-phase process permits selection and enrichment of different bacteria in each digester by independently controlling the digester operating conditions. Thus, the first phase (acidogenesis) can be operated to optimize acidogenic growth and the second phase (methanogenesis) to optimize methanogenic growth. (Ince O. , 1998). Before reactors’ set up, , some lab scale experiments were carried out to identify the best manure and whey ratio and the best conditions of temperature, pH, hydraulic retention time of acidogenesis an methanogenic phases.

Abstract
Tipologia del documento
Tesi di laurea (Laurea magistrale)
Autore della tesi
Malerba, Matteo
Relatore della tesi
Correlatore della tesi
Scuola
Corso di studio
Ordinamento Cds
DM270
Parole chiave
biogas, co-digestione, letame, siero, processo multistadio, digestione anaerobica
Data di discussione della Tesi
Ottobre 2011
URI

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