Kitchen waste full-chain resource utilization method and device

Abstract

The invention provides a kitchen waste full-chain resource utilization method and device, and relates to the technical field of kitchen waste treatment. The kitchen waste full-chain resource utilization method comprises the following steps: draining kitchen waste to obtain a filtrate and a slurry; enabling the slurry to sequentially pass through an impurity sorting machine and an extruding machine, so as to remove solid impurities in the slurry; mixing the impurity-removed slurry with the filtrate, carrying out fine-grained impurity removal, heating and three-phase separation to obtain solid organic matters, wastewater and grease, and collecting the grease; carrying out anaerobic fermentation on the wastewater to produce biogas; and conveying the solid organic matters to insect breeding equipment, and obtaining insects and insect sand. The method has the beneficial effects that the kitchen waste is converted into various high-value products such as biogas, grease, insect products, insect protein, nutrient soil and organic fertilizer, the operation cost is low, the resource recovery efficiency is high, the project operation cost can be effectively reduced, and the income is increased.

Description

technical field [0001] The invention relates to the technical field of kitchen waste treatment, in particular to a process and device for full-chain resource utilization of kitchen waste. Background technique [0002] Kitchen waste is the most common waste generated in urban daily life. It belongs to municipal solid waste. Its main components include organic matter such as starchy food, plant fiber, animal protein and fat. High content, perishable and smelly, inconvenient to transport and so on. If this kind of garbage is not treated by classification and special treatment, it will cause great harm to the environment. [0003] Kitchen waste mainly comes from food processing leftovers (kitchen waste) and food residues (swill) produced in the catering service industry, households, canteens of enterprises and institutions, etc. With the rapid development of our country's economy and the gradual acceleration of urbanization, the output of kitchen waste is showing an upward tre...

AI Technical Summary

Problems solved by technology

The current food waste treatment projects have problems such as high operating costs, single products and limited outlets, and low resource recovery value in engineering practice.

Therefore, the existing processing technology greatly limits its application in engineering construction and the survivability of project operation

[0005] At present, there is still a lack of reliable implementation devices in the market. People are still looking for a food waste resource treatment process with low operating costs and high resource recovery efficiency. Development of my country's food waste comprehensive treatment market

Images