DEVELOPMENT OF LOCALLY-FABRICATED BIODIGESTER FOR FERTILIZER PRODUCTION
DEVELOPMENT OF LOCALLY-FABRICATED BIODIGESTER FOR FERTILIZER PRODUCTION
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Date
2021
Authors
Abdullahi, B
Adie, D. B
Abubakar, U. A
Giwa, A
Isa, M. T
Bello, T. K
Adetunji, O. A
Anthony, J. D
Adeoye, D. O
Journal Title
Journal ISSN
Volume Title
Publisher
KASU JOURNAL OF CHEMICAL SCIENCES (KJCS)
Abstract
The effects of over dependent and continuous fertilizer usage indiscriminately on soil have
resulted to the fertility and structural arrangement imbalance. Based on this, farmers have been
searching for alternative substitutes to support their agricultural production and also maintain
soil stability. However, such practice has been handled in local ways by gathering waste to dry
before applying them directly. This technique does not totally eliminate the harmful pathogens in
such waste but rather minimize them. This work therefore, aimed to design biodigester to compost
cow dung waste into slurry, which was subsequently converted to biofertilizer for agricultural use.
This aim was achieved by designing the digester, using the feedstock's properties to carry out
detail material balances across it. The data generated from the input and output process streams
3 were used to come up with the digester design specifications of 0.022 m , with the height, radius
and clearance of 0.42 m, 0.14 m and 2 mm respectively. The digester was constructed based on
these specifications and used to produce 1.4 kg of biofertilizer per batch. It was concluded that the
digester is economically viable with 60 % waste conversion into useful product.
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