Kitchen waste integrated treatment system based on biotechnology and energy coupling

A technology for processing system and kitchen waste, applied in biomass post-processing, biological sludge treatment, biological material pretreatment, etc., can solve problems such as fire hazards, aggravate haze, harm the environment, etc., to improve gas production, solve Energy consumption problem, the effect of simple operation control

Active Publication Date: 2021-04-02
ZHEJIANG NORMAL UNIVERSITY
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  • Abstract
  • Description
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Problems solved by technology

Landfill needs to occupy land, incineration will exacerbate smog, and abandonment will also cause fire hazards and endanger the environment

Method used

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  • Kitchen waste integrated treatment system based on biotechnology and energy coupling
  • Kitchen waste integrated treatment system based on biotechnology and energy coupling
  • Kitchen waste integrated treatment system based on biotechnology and energy coupling

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Embodiment Construction

[0062] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0063] An integrated treatment system for food waste based on the coupling of biotechnology and energy according to the present invention, according to the treatment process, the treatment system sequentially includes a pretreatment device, an anaerobic fermentation device and an aerobic composting device. The remaining garbage is processed into a water-solid mixed slurry. The anaerobic fermentation device performs anaerobic digestion on the water-solid mixed slurry to produce biogas, biogas slurry and biogas residue. The aerobic composting device is used to perform aerobic composting of the biogas residue.

[0064] The pretreatment device includes a collection bucket, a pulper, a solid-liquid separator and a three-phase ce...

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Abstract

The invention provides a kitchen waste integrated treatment system based on biotechnology and energy coupling, and belongs to the technical field of kitchen waste treatment. The problems that resources are wasted to a certain extent, aerobic composting and anaerobic digestion have many defects and the like in an existing garbage treatment method are solved. The kitchen waste integrated treatment system comprises a pretreatment device, an anaerobic fermentation device and an aerobic composting device; the pretreatment device treats kitchen waste into water-solid mixed slurry; the anaerobic fermentation device performs anaerobic digestion on the water-solid mixed slurry and generates biogas, biogas slurry and biogas residues; the aerobic composting device is used for performing aerobic composting on the biogas residues; the anaerobic fermentation device comprises an anaerobic tank; the aerobic composting device comprises an aerobic tank; the top of the aerobic tank is provided with a recess; and the anaerobic tank is arranged in the recess. The kitchen waste integrated treatment system has the advantages that an anaerobic digestion technology and an aerobic composting technology supplement each other; continuous feeding and a two-phase process of a single anaerobic tank are realized by adopting two stages of feeding cabins; and simultaneous treatment of multiple kinds of garbageis realized.

Description

technical field [0001] The invention belongs to the technical field of kitchen waste treatment and relates to an integrated kitchen waste treatment system based on the coupling of biotechnology and energy. Background technique [0002] The disposal of municipal solid waste is related to the sustainable development of our country, and has been paid more and more attention by people in recent years. As an important part of municipal solid waste, kitchen waste has high organic content and high recycling value. With the expansion of cities and the improvement of residents' living standards, a series of problems caused by food waste have become increasingly prominent. At the same time, the resourceful utilization and harmless treatment of kitchen waste has great market potential, and has received more and more attention from scholars at home and abroad. [0003] At present, domestic and foreign food waste treatment technologies can be divided into two categories: non-biological...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/107C12M1/02C02F11/04C05F17/90C05F17/964C05F5/00
CPCC12M21/04C12M23/48C12M23/52C12M23/58C12M27/02C12M27/20C12M37/04C02F11/04C05F17/90C05F17/964C05F5/008C05F9/04Y02W30/40Y02A40/20
Inventor 李一鸣
Owner ZHEJIANG NORMAL UNIVERSITY
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