Abstract
Anaerobic digestion of organic biomass has become one of the best sources of bioenergy to replace the fossil fuels. This technology was successfully transferred to land scale digesters in both the mesophilic and thermophilic conditions due to easy degradation of the biomass. Still there is a need to address the organic waste management in low temperature regions to effectively use the biomass to generate biofuels. Psychrophilic digestion can be a low-cost technology which can flourish in the colder regions with possible improvement in the operational parameters, strategies to improve the biomethanation in the psychrophilic conditions. This chapter gives brief information about the psychrophilic anaerobic digestions, challenges and strategies to enhance the methane generation.
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