Reactor for producing acid phase with diphasic anaerobic digestion of urban biomass garbage

Abstract

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.

Description

technical field [0001] The invention relates to the treatment of solid waste, in particular to a two-phase anaerobic digestion phase reactor for acid production of municipal biomass waste. Background technique [0002] With the development of social economy and the acceleration of urbanization process, the generation of urban solid waste in my country has increased rapidly, especially the biomass waste such as fruits and vegetables, kitchens and so on, which exists in large quantities in urban solid waste, has become the main pollution source of solid waste polluting the environment. If this kind of garbage is piled up randomly, it will cause pollution and damage to the urban environment; if it is used for pig farming, it will easily lead to the spread of infectious diseases; if it is directly filled or incinerated, it will cause waste of biomass energy. [0003] Anaerobic digestion is the process of converting organic matter in garbage into methane, carbon dioxide, inorgani...

AI Technical Summary

Problems solved by technology

[0007] The design of an industrial-scale acid-producing phase reactor suitable for two-phase anaerobic digestion of urban biomass waste must fully solve the problems of stirring and mixing, heating and heat preservation, anti-corrosion and life extension. At present, there is no mature and finalized equipment available in China. , the few small experimental devices mainly rely on imports, which are expensive

Images