Published in Scientific Papers. Series "Management, Economic Engineering in Agriculture and rural development", Vol. 15 ISSUE 4
Written by Mariana DUMITRU

This paper wants to analise a part of a biogas plant, the feeding system. As it is known, a biogas plant is a complex installation, consisting of many components. The layout of a biogas plant depends very much on the types and amounts of feedstock supplied. As there are many different feedstock types suitable for digestion in biogas plants, there are, correspondingly, various techniques for treating these feedstock types and also different digester constructions and systems of operation. That is why, depending on the type, size and operational conditions of each biogas plant, there are various technologies for conditioning, storage and utilisation of biogas. Generally, agricultural biogas plants operate with four different process stages: transport, delivery, storage and pretreatment of feedstock, biogas production and storage of digestate. This paper studies the feeding system of such a plant and the main pumps used in the process of transport of feedstock, such as: centrifugal pumps, pressure displacement pumps with their characteristics and components, considering that these pumps are an important part from the feeding system of the biogas plant.

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