How to deal with food waste

Abstract

The invention discloses a method for processing kitchen waste, which belongs to the field of resource utilization of waste. The method includes: using food waste, agricultural and forestry waste, and limestone powder as the main raw materials, through several main operation steps such as impurity removal, crushing, mixing, sterilization, inoculation, germination, mushrooming, and reuse of waste bacteria sticks. , making food waste into edible fungi sticks for the production of edible fungi. The method can treat kitchen waste on a large scale, and the produced fungus sticks have low cost, rapid growth and high fruiting rate, and the discarded mushroom sticks after harvesting edible fungi are widely used, and can be processed into bacterial protein feed, organic Fertilizer, cultivation substrate, solid waste derived fuel (RDF), etc.

Description

technical field [0001] The invention relates to the field of resource utilization of waste, in particular to a method for processing kitchen waste. Background technique [0002] Food waste is a kind of solid waste mainly waste food. It has a large amount of production, high moisture content, high content of salt, oil and organic matter, and is easy to decompose and deteriorate to produce odor. It is one of the main pollution sources of urban environment. , need to be specially collected and processed centrally. The current food waste treatment processes in my country mainly include aerobic composting, anaerobic fermentation to produce biogas, and wet heat treatment to produce feed. According to the feedback information from most existing projects, it is difficult to control the maturity of the aerobic composting process of food waste, the salt content is high, the quality of the organic fertilizer produced is poor, it is easy to cause soil salinization, and the market capac...

AI Technical Summary

Problems solved by technology

According to the feedback information from most existing projects, it is difficult to control the maturity of the aerobic composting process of food waste, the salt content is high, the quality of the organic fertilizer produced is poor, it is easy to cause soil salinization, and the market capacity is limited. Difficult to sell; biogas produced by anaerobic fermentation of kitchen waste also has many problems, including high equipment requirements, unstable gas production, complex biogas subsequent purification, difficult disposal of biogas residue and biogas slurry, difficulty in connecting biogas to the grid, and serious corrosion of facilities, etc. ; wet heat treatment feed can realize the resource utilization of kitchen waste to a large extent, but there are still disputes such as unstable feed quality, poor safety, and homologous protein pollution. Therefore, it lacks policy support and cannot be widely promoted

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