Starting-up an anaerobic hybrid filter for the fermentation of wastewater from food industry

被引：0
|
作者：
Di Berardino S. [1 ]
Bersi R. [2 ]
Converti A. [2 ]
Rovatti M. [2 ]
机构：
[1] Inst. Nac. Engenharia Tecn. Indust., Azinhaga dos Lameiros Estrada do P.
[2] Ist. Ingegneria Chim. P., Universitè di Genova, I-16145 Genova, Via Opera Pia
来源：
Bioprocess Engineering | 1997年 / 16卷 / 2期
关键词：
Biomass; Wastewater; Fermentation; Biogas; Anaerobic Digestion;
D O I：
10.1007/s004490050289
中图分类号：
学科分类号：
摘要：
The wastewater from a food processing factory, characterised by fluctuations of flow rate, organic strength, and pH, were originally treated by a traditional suspended-biomass digester working at about 25°C. In order to improve the digester efficiency, either in terms of degradation ability or biogas production yield, a set of tests has been carried out on laboratory scale, whose results indicated the way to correctly transform it into an anaerobic hybrid filter. The unacceptable conversion yield of organic substances into biogas observed in the original system has been improved by the presence of the filling medium, due to a marked increase in biomass retention time. The start-up of anaerobic digestion has been studied in this reactor at two different temperatures (25 and 30°C), in order to evaluate the possible advantage of heating the system, simulating continuous variations in feed strength, pH, and composition.
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页码：65 / 70
页数：5
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