Reactor for producing acid phase with diphasic anaerobic digestion of urban biomass garbage
2008
The invention discloses a two-phase anaerobic digestion acidogenic phase reactor for municipal biomass waste. The acidogenic phase reactor is provided with an enclosed vertical kettle formed with a thin corrosion resistant stainless steel inner barrel and a common carbon steel outer barrel. The kettle is welded with a dimple jacket outside, and is fixed with a hollow guiding barrel inside, and the insides of the dimple jacket and the hollow guiding barrel both have a heating medium so as to realize heating insulation operation under the combination control of a temperature sensing probe and a temperature controller. A multi-layer push type propeller blade with less flow resistance is used to perform mechanical stirring of the biomass waste entering the reactor, and meanwhile low consumption and high efficiency mixing of material and liquid can be realized with the forced current limit of the guiding barrel. The rotating inner stirring device and the resting kettle are mechanically sealed through a movable sealing element. The acidogenic phase reactor integrates the functions of stirring, mixture, reaction, fermentation, heating and insulation has good energy-saving and environmental-protection property, which can digest the high solid municipal biomass waste into small molecule organic acids that can be used by methanogens bacteria directly.
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