Multi-type perishable garbage synergistic anaerobic digestion treatment equipment and treatment method

Abstract

The invention discloses multi-type perishable garbage synergistic anaerobic digestion treatment equipment and treatment method. The equipment comprises a kitchen garbage treatment system, a garden stuff garbage treatment system and an after-treatment system, wherein the kitchen garbage treatment system and the garden stuff garbage treatment system are linked with the after-treatment system separately. According to the invention, the equipment is merged into a wet process anaerobic fermentation technology production line to be treated, so that the defect that the single technology treatment cannot realize comprehensive resource utilization of organic matters and various nutrient elements in kitchen waste is effectively avoided, and the resource utilization level of kitchen waste is increased. The equipment is provided with a middle storage silo and a wringing machine with the water drainage function, so that the problem that after garbage classification, excessively high water content of high-purity perishable garbage cannot meet the index requirement of material solid content from the dry method anaerobic fermentation technology is solved.

Description

technical field [0001] The invention relates to the field of garbage treatment, in particular to a multi-type perishable garbage collaborative anaerobic digestion treatment equipment and a treatment method. Background technique [0002] Anaerobic fermentation of organic solid waste is divided into wet fermentation and dry fermentation according to the content of total solids (TS). Dry anaerobic fermentation refers to the anaerobic fermentation treatment process with TS content of 20%-40%; wet anaerobic fermentation refers to the anaerobic fermentation treatment process with TS content of 5%-12%. [0003] The kitchen waste classified by the city is mainly from the leftovers, leftovers, egg shells, melon and fruit peels, tea residues, bones and other perishable wastes discarded in the daily life of the family, which are easily spoiled and produce foul odors. Its moisture content is about 60%-70% (solid content is about 30%-40%). Therefore, kitchen waste is suitable for dry a...

AI Technical Summary

Problems solved by technology

[0010] (1) The higher the purity of the sorted kitchen waste, the lower its solid content, resulting in the pretreated perishable waste unable to meet the requirements of the dry anaerobic digestion process technology for the solid content of raw materials into the tank, affect production

[0011] (2) The sorted food waste will be quickly released in each link of the pretreatment production line to produce kitchen waste drain, which contains high organic matter and other rich nutrients, but cannot enter the dry anaerobic digestion tank for disposal , reduce project benefits, and at the same time increase production costs when treating it as sewage

[0012] (3) The sorted kitchen waste has high water content and high oil content, and there are problems such as dripping along the production line, polluting the workshop site, and slipping of the conveyor belt when the belt is conveyed

[0013] Fruit and vegetable waste has the characteristics of extremely high water content (about 85%-95%), low organic matter content, and insufficient nutrient elements (especially lack of metal trace elements) and other characteristics: composting will produce a large amount of leachate, aerobic fermentation Difficult to heat up, insufficient compost material maturity, poor quality; feed production faces problems such as less market application, difficult promotion, and product inventory backlog; low calorific value, unfavorable for incineration disposal; easy to rot and produce leachate, stench, direct landfill It will produce secondary pollution, and the organic matter components are not effectively utilized, resulting in waste

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