Dry anaerobic fermentation system for dry-wet separation pretreatment of kitchen waste and treatment method of dry anaerobic fermentation system

Abstract

The present invention discloses a dry anaerobic fermentation system for a dry-wet separation pretreatment of kitchen waste and a treatment method of the dry anaerobic fermentation system, and relatesto the technical field of solid waste treatment. The dry anaerobic fermentation system comprises a receiving hopper for receiving kitchen waste, an outlet end of the receiving hopper communicates witha dry-wet separator for separating the kitchen waste into a dry type and a wet type, the outlet end of the dry-wet separator sequentially communicates with a crushing pulping machine, a cyclone sandsetting device, an impurity removing machine and a two-phase separator; a solid waste residue discharge port of the two-phase separator communicates with a dry anaerobic fermentation tank, and a wastewater discharge port communicates with a wastewater pool; a biogas residue discharge port of the dry anaerobic fermentation tank communicates with a biogas residue dehydrator; and a water outlet of the wastewater pool simultaneously communicates with a water inlet of the pulping machine and a wet anaerobic tank, and water outlets of the wet anaerobic tank and the biogas residue dehydrator communicate with a sewage treatment system. The dry anaerobic fermentation system achieves dry and wet waste separation and impurity removal in a treatment facility, and is stable and reliable in a separationeffect. Separated dry waste has effects of high heat value and uniform and stable components.

Description

technical field [0001] The invention relates to the technical field of solid waste treatment, in particular to a dry-type anaerobic fermentation system for dry-wet sorting pretreatment of kitchen waste and a treatment method thereof. Background technique [0002] Kitchen waste refers to perishable organic waste such as fruits and vegetables and food scraps, leftovers, melon and fruit peels discarded in daily life of households, as well as melons, fruits and vegetables discarded in farmers' fruit and vegetable markets. Kitchen waste is perishable and produces stench, and its moisture content is about 60%-70% (solid content is about 30%-40%). Therefore, kitchen waste is suitable for dry anaerobic fermentation technology. [0003] At present, in many cities that implement waste sorting, the allocation of infrastructure equipment is mainly concentrated on source sorting facilities, and the progress of terminal sorting and disposal facilities is gradually advancing. In addition...

AI Technical Summary

Problems solved by technology

In addition, because the front-end sorting work is in its infancy, the quality of waste after sorting is still unstable, and the terminal disposal process and equipment are prone to failure at this time

Therefore, the current operation of the terminal disposal project that is carried out in conjunction with the classification of domestic waste is not ideal

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