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Composting (Anaerobic digestion (biochemical reaction carried out by…
Composting
Anaerobic digestion
biochemical reaction carried out by bacteria
produce methane gas with absent of oxygen
rate of decomposition is depend on temperature
reduce the pollutionn load of waste
produce of biogas
Benefit of anaerobic digestion
generation of electricity
improve fertilizer value of waste
less hazardous and safe for handling
can reuse output water
Issues
Environmental hazard
Contamination of environment
Oral contamination
Hazard to man
Type of digester
covered anaerobic lagoon digester
CSTR
PFR
Digester
digestion process carried by bateria with assistant of heating and stirring
Close tank
to collect biogas
Biogas production synthesis
hydrolysis
fermentation
acetonegenesis
methanogenesis