Biotechnology of co-fermentation of sugar by-products with typical agricultural substrates

Authors

  • Ye. O. Dvornik National University of Life and Environmental Sciences of Ukraine

DOI:

https://doi.org/10.31548/machenergy2020.03.135

Keywords:

anaerobic digestion, biogas, methane yield, by-products, sugar beet pulp, sugar beet tail, potato peel pulp, potato fruit water

Abstract

Anaerobic digestion (AD) is a promising option for the environmentally friendly recycling of agricultural by-products. However, overloading of the digester with sugar, starch or protein might cause inhibition of the anaerobic processes. The aim of the present project was to investigate the influence of sugar beet by products on biogas yield from a typical mixture of energy crops and animal manure.

The investigated substrates have been: cattle slurry, maize, sorghum and grass silage, sugar beet pulp e (SBP) and sugar beet tail silage (SBT). The difference between untreated SBT to processed SBP. All substrates were digested in 1 l eudiometer-batch digesters at 37.5°C during 28 to 38 days. The specific methane yield of mixtures and various substrates exanimated. The experiments showed that edition of sugar beet by product to energy crop and slurry mixture results in high methane yield even the achieved methane yield of the mixture was lower the expected.

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Published

2020-08-21

Issue

No. 11(3) (2020)

Section

Статті

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