PRODUCTION OF BIOGAS 
Source segregation of organic fraction of solid waste should be implemented in whole AIT community in order to have sustainable solid waste management 
Since the methane is the excellent indicator of greenhouse effects, it should be trapped and should be either used or disposed properly
The AD system should be operated into two stages in order to get higher methane yield and to control the process effectively



}Biogas, a clean and renewable form of energy could very well substitute (especially in the rural sector) for conventional sources of
}energy (fossil fuels, oil, etc.) which are causing ecological–environmental problems and at the same time depleting at a faster rate.
}Despite its numerous advantages, the potential of biogas technology could not be fully harnessed or tapped as certain constraints are
}also associated with It Most common among these are: the large hydraulic retention time of 30–50 days, low gas production in
}winter, etc. Therefore, efforts are needed to remove its various limitations so as to popularize this technology in the rural areas.
}Researchers have tried different techniques to enhance gas production.This paper reviews the various techniques, which could be
}used to enhance the gas production rate from solid substrates.








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