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Three-stage integrated treatment system and method for organic biomass garbage

A processing system and biomass technology, applied in the field of organic biomass waste recycling, can solve the problems of easy acidification of dry anaerobic fermentation, affecting the yield of biogas, and no blocking of sorting material transmission, so as to overcome the logistics flow. Poor performance and blockage, strong practicability, and the effect of solving environmental problems

Inactive Publication Date: 2020-06-02
QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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Problems solved by technology

[0014] In view of the defects existing in the prior art, the technical problem to be solved by the present invention is to combine the advantages of aerobic and anaerobic fermentation, to solve the problem that dry anaerobic fermentation is easy to acidify and affect the biogas yield, and to solve the problem of non-sorting by screw conveying. Blockage during material transfer

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  • Three-stage integrated treatment system and method for organic biomass garbage
  • Three-stage integrated treatment system and method for organic biomass garbage
  • Three-stage integrated treatment system and method for organic biomass garbage

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Embodiment 1

[0090] A three-stage integrated treatment system and treatment method for organic biomass waste,

[0091] Wherein, the treatment system includes: a three-stage fermentation reactor, a screw feeding and discharging device, an external circulation coil and a deodorizing device, etc. The three-stage fermentation reactor is divided into the first microaerobic area, the second anaerobic area and the third aerobic area, which are separated from each other by partitions and connected to form an integral structure. The overall size of the equipment is 30×6× 6m, effective volume 1080m 3 , wherein the volumes of the first microaerobic zone and the third aerobic zone are each 180m 3 , the volume of the second anaerobic zone is 720m 3 . The three-stage fermentation reactor also has a coaxial central stirring shaft running through the first microaerobic zone, the second anaerobic zone and the third aerobic zone, forming a push flow structure in the horizontal flow direction, and using ...

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Abstract

The invention discloses a three-stage integrated treatment system for organic biomass garbage and a treatment method for the organic biomass garbage. The treatment system involves a three-stage fermentation reactor, a spiral feeding and discharging device, an external circulating coil and a deodorization device. According to the system, the kitchen garbage is subjected to micro-aerobic pretreatment by integrating a micro-aerobic process, an anaerobic process and an aerobic process, so that the problem of unstable operation caused by acidification in the anaerobic process is avoided; secondly,a horizontal plug flow mode and an integrated slow stirring mode are adopted, so that the mass transfer efficiency and the heat transfer efficiency in the anaerobic process are improved; and thirdly,the materials are conveyed on line in the micro-aerobic, anaerobic and aerobic processes in a multi-stage spiral conveying mode, and the problems of poor flowability and blockage of the material floware solved. The process is high in practicability, continuous and efficient, well solves the environmental problem caused by the urban kitchen garbage, comprehensively utilizes the wastes in a recycling manner, and is suitable for environment-friendly treatment of easily biodegradable organic wastes.

Description

technical field [0001] The invention belongs to the field of organic biomass waste resource treatment, in particular, the invention relates to a three-stage integrated treatment system and treatment method for organic biomass waste, especially kitchen waste. Background technique [0002] my country is facing the double pressure of environment and energy. With the acceleration of economic and urbanization, the national energy consumption is huge, and 2 / 3 of the big cities are facing the dilemma of being surrounded by garbage. Turning domestic garbage into usable resources through technical means can alleviate the crisis of energy and environment in our country to a certain extent. The types of urban garbage mainly include kitchen waste, waste paper, waste plastics, waste fabrics, scrap metal, brick and tile muck, excrement, waste electrical appliances and greening waste, etc. Before garbage classification, the main treatment methods for these mixed garbage are: landfill, inc...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00
CPCB09B5/00B09B3/80B09B3/00B09B2101/02
Inventor 郭荣波冯权罗生军王国栋许晓晖杨智满
Owner QINGDAO INST OF BIOENERGY & BIOPROCESS TECH CHINESE ACADEMY OF SCI
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