3. Schemes for enhancing biogas production
Due to some environmental factors the production of gas from
a biogas plant is insufficient. The production of biogas can be
increased by treating the raw material before use. In a biogas plant
the raw material on commercial scale is pretreated using various
techniques i.e. thermal, chemical, thermochemical, mechanical,
ultrasonic, electronic beam pre-treatment and biological in order
to make rapid anaerobic digestion and hence enhance biogas
production [39].