Abstract
In this study, we investigated the design model
selection and dimensioning of the anaerobic digester for the codigestion
of different organics fraction of municipal solid waste
(OFMSW) originating from the city’s landfills. The waste
quantification and characterization exercise were undertaken
at the point of generation, so as to obtain the total amount of
waste generated and to ascertain the waste composition. Via
the application of the simple multi-attribute rating (SMART)
technique of multiple-criteria decision analysis (MCDA) as a
decision support tool base on cost, scalability, temperature
regulation, ease of construction, operation, and maintenance.
The most preferred model option for bioenergy design
technology was selected from a list of potential alternatives
available in the market. Continuous stirred tank reactor
(digester) CSTR scored the highest with 79% and was selected
for the design in OFMSW biogas production. The geometry of
the biodigester parameters was comparable with the anaerobic
digestion (AD) process.