Anaerobic rapid starting and anaerobic-aerobic integrated fermentation method at low temperature

The present invention discloses a cryogenic conditions under anaerobic quick start and anaerobic - aerobic fermentation process integration, involving environmental and energy technology, the method is: in the initial stage of anaerobic fermentation, air compressor through line biogas into the tank, anaerobic environment; at the same time, electric machine into biogas for heating to heat the tank body materials, insulation insulation, solve low (≤20 ℃) ​​under anaerobic fermentation conditions difficult to start and difficult process temperature control issues, while achieving speeds of up to start the anaerobic fermentation temperature ≥20 ℃ startup speed when natural anaerobic fermentation. At the end of the anaerobic fermentation tank body via a conduit to pass into the air, aerobic composting of biogas fermentation.