Recycling method for cleaning and processing kitchen waste

Abstract

The invention relates to a waste processing method, in particular to relate to a recycling method for cleaning and processing kitchen waste and comprising the following steps: sorting, separating and recovering grease, performing secondary hydrolysis on materials after grease separation and recovery, further fermenting hydrolysis liquid and preparing solid residue obtained by sorting, hydrolysis and fermentation into feed. The invention has the following beneficial effects: economic and reasonable technologies suitable for industrialized application are adopted, thus greatly lowering processing cost; regenerative recycled products can be prepared with wide application and high additional value; and the production process is clean and environment-friendly, closed cycle of materials can be realized, secondary pollutants are prevented, and the recycled products have wide application, low operation cost and high economic benefit.

Description

Technical field [0001] The invention relates to a garbage processing method, in particular to a resource-based cleaning method for kitchen garbage. Background technique [0002] According to statistics, about two-thirds of the cities in my country are currently in the dilemma of garbage siege. The annual output of municipal solid waste in my country alone is nearly 150 million tons, and most of this municipal solid waste is stored in the open air. It not only affects the urban landscape, but also pollutes the atmosphere, water and soil that are vital to our lives, posing a great threat to the health of urban residents. Garbage has become a very difficult problem in the process of urban development and social progress. Moreover, with the continuous improvement of people's living standards, the amount of domestic waste generated is increasing, the growth rate is faster and faster, the composition is becoming more and more complex, and the harm to the people's lives is becoming mor...

AI Technical Summary

Problems solved by technology

Disadvantages are: large area, short use time (one share is about ten years), long occupation time (cannot be reused within 100 years); landfilled garbage causes serious pollution to soil, groundwater, and atmosphere, and its actual hazards and potential Hazards are increasing; resulting in a serious waste of resources

[0007] (1) It takes a long time for organic matter to pile up and rot, and it takes three weeks to one month for one pile. The accumulation pollution is serious, and flies and mosquitoes breed, which seriously pollutes the surrounding environment and brings great hidden dangers to local health and epidemic prevention.

[0008] (2) The degradation of organic matter is not complete, the treatment is not sufficient, and the residue will still cause garbage pollution

[0009] (3) Organic compost products have many impurities and cannot effectively separate harmful substances such as heavy metals. Long-term use of compost products will cause soil surface deposition, damage soil, and endanger crops

[0010] (4) During the composting process, most of the nitrogen nutrients are naturally released, and compounds such as phosphorus and potassium are naturally degraded, so the quality of the fertilizer is low, the majority of farmers are unwilling to pay attention, and the market prospect is slim

In this method, during the treatment of organic matter, dehydration is carried out while hydrolyzing, which not only wastes resources, but also fails to obtain high value-added products.

[0016] There is no treatment process for the comprehensive utilization of kitchen waste in the prior art

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