Kitchen garbage disposal method

Abstract

A kitchen garbage disposal method is characterized by including steps of 1, sterilizing, deodorizing, and adding hydrolyzing protease into kitchen waste; 2, screening and crushing the kitchen garbage, sorting wastes such as glass and ceramics which cannot be disposed from deodorized garbage automatically, crushing the residual waste by a crusher; 3, performing solid and liquid separation, separating suspended matters with thickness of 2mm at least and solids and squeezing to dewater to form a tailing product, and discharging oil water into an oil and water separator; 4, performing oil and water separation to separate heavy oil, light oil, sewage and sludge and the like in waste water of the kitchen garbage, feeding the separated oil, sewage and sludge into an oil storage barrel, a sewage treatment device and a sludge collection barrel respectively; 5, purifying sewage by details of feeding the separated sewage into a sewage purifying system which is provided with air flotation and reverse osmosis devices; and 6, treating the tailing solid products by details of hydrolyzing the tailing solid subcritically, subjecting dynamic fermentation to the tailing solid products for two to three days after subcritical hydrolysis treatment, and finally obtaining an organism modifier for soil.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to a kitchen waste treatment method. Background technique [0002] Kitchen waste is a general term for leftover meals discarded by catering units such as families, hotels, restaurants, government agencies, enterprises and institutions, and it is a kind of kitchen waste produced in the process of people's daily consumption. At present, about 40% of the vast majority of urban waste in the world is kitchen waste. According to estimates, the amount of kitchen waste generated in my country in 2000 was 45 million tons. At the same time, the amount of garbage generated in my country is increasing at a rate of about 10% per year, and the annual increase in the amount of kitchen waste generated reaches 5 million tons. The kitchen waste contained in the garbage has not been properly treated and utilized due to its high moisture content and low calorific value, th...

AI Technical Summary

Problems solved by technology

[0009] The above-mentioned food waste treatment process has the following disadvantages: 1) It cannot handle food waste containing broken glass, broken porcelain pieces, etc., and the existing food waste in my country is relatively complex, often mixed with broken glass, broken porcelain pieces, etc. substance

2) The garbage is not disinfected, which is easy to cause pollution

3) Odor will be generated during processing, and there are no control and treatment measures for odor

4) The waste water generated by the tail product is not treated, which will cause secondary pollution

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