Treatment method and treatment system of food wastes

Abstract

A treatment method of food wastes comprises the following steps: (1) sorting: classifying the collected food wastes according to organic matters and inorganic matters, wherein the inorganic matters are to be treat; (2) crushing: crushing the separated inorganic matters to obtain waste mixed particles with the uniform particle size; (3) performing fermentation treatment: adding culture starter in the crushed waste mixed particles, performing the first fermentation treatment to obtain a fermentation product; (4) perform fat separation: separating fat type materials from the fermentation solution, removing through filtration; (5) performing dry separation: performing dry separation to the fermentation product to obtain solid organic matters and liquid organic matters; (6) precipitating: precipitating the liquid organic matters to remove; and (7) preparing fertilizer: respectively using the solid organic matters and the liquid organic matters to prepare solid fertilizer and liquid fertilizer. By using the treatment method of the invention, the food wastes can be treated to prepare fertilizers, thus nutrients can be reused and the method is more environmentally friendly.

Description

technical field [0001] The invention relates to the field of waste recovery and treatment, and relates to a kitchen waste treatment method and a treatment system thereof. Background technique [0002] Food waste includes leftover food residues, melon peels, and fruit scraps left over from eating every day; vegetables, leftovers, leftover bones, etc. after choosing vegetables, washing vegetables, and washing dishes. For this kind of kitchen waste, it is generally put into garbage bags and thrown away directly. In the urban waste treatment system, most of them are disposed of by landfill and incineration, which not only pollutes the environment, but also cannot be recycled. There are also households or restaurants to install garbage disposers, which are generally connected to the water outlet of the pool. The garbage flushed from the pool enters the garbage disposer. The treatment method is likely to cause blockage of the urban sewer system, and it is also easy to breed bacte...

AI Technical Summary

Problems solved by technology

For this kind of kitchen waste, it is generally put into garbage bags and thrown away directly. In the urban waste treatment system, landfill and incineration are often used for disposal, which not only pollutes the environment, but also cannot be recycled.

There are also households or restaurants to install garbage disposers, which are generally connected to the water outlet of the pool. The garbage flushed from the pool enters the garbage disposer, and the garbage disposer crushes the larger garbage and then discharges it into the sewer pipe. The treatment method is likely to cause blockage of the urban sewer system, and it is also easy to breed bacteria, mosquitoes, mantis, etc., and eventually discharge into the environment and pollute the water and soil

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