Abstract
This research work was conducted to design an algorithm for the biogas digester and demonstration of modern techniques to
enrich the bio-methanation process. Initially, algorithms were generated and validated by design and operating digesters at
selected sites. The designing and operational enhancement of biogas production were carried out using reverse blasting
technique (RBT) at different sites i.e., University of Agriculture Faisalabad (UAF) biogas plant, Proka farm, Chawla and
Shakargarh biogas plants. Reverse blasting technique involves compression and injection of produced biogas to increase
agitation within the digester leading to the deformation of scum. This action takes place at the top half of the digester resulting
in the enhancement of microbial activity at the operating conditions. The analysis revealed that the biogas production rate was
increased by 10% by controlling parameters such as reverse blasting pressure (2.5-5.5bar), temperature (30-40oC), and feeding
material density (1-2 kgm-3
). The obtained biogas was further enriched methane from 55 to 90% via chemical absorption
method (CAM) using various solution concentrations of CaO and NaOH. The obtained enriched biogas was utilized for heating
and power generation systems
Usman Haider, Anjum Munir, Abdul Ghafoor, Shoukat Ali. (2020) DESIGN OF BIOGAS FERMENTATION CHAMBER AND TECHNIQUES TO ENRICH BIO-METHANATION, Pakistan Journal of Agricultural Sciences, Volume 57, Issue 6.
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