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Method for recycling kitchen waste

A technology of food waste and garbage, which is applied in the field of food waste recycling, can solve problems such as foot-and-mouth disease, various diseases, germs, and peculiar smells, and achieve resource utilization, significant economic benefits, and reasonable design.

Inactive Publication Date: 2013-03-27
ZHENGZHOU JINTUDI ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common treatment method of food waste is to bury it or directly use it as animal feed. Burying it on the spot will easily produce peculiar smell, germs, and even produce a large amount of leachate to pollute the groundwater, causing secondary pollution. Direct use as animal feed can easily cause foot-and-mouth disease and various diseases. diseases, and even spread to human beings to cause harm

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for recycling kitchen waste, comprising the following steps:

[0022] (1) Pretreatment of food waste: magnetically separate and oscillate the waste materials, recycle the separated metal and plastic, grind the bones, and use them as organic fertilizers;

[0023] (2) Grinding of kitchen waste: crush the waste treated in step 1 until the particle size is less than 5mm, and then sterilize the material at 100°C for 2 hours;

[0024] (3) Solid-liquid separation: the material obtained in step 2 is subjected to solid-liquid separation for the first time, the solid-phase material obtained is washed with water, solid-liquid separation is performed again, and the obtained liquid is combined twice;

[0025] (4) Oil-water separation: Centrifuge the combined liquid to recover the upper layer of oil, which is used as raw material for biodiesel or oil for industrial use;

[0026] (5) Biogas production: combine the solid-phase material obtained in step 3 with the lower layer ...

Embodiment 2

[0029] A method for recycling kitchen waste, comprising the following steps:

[0030] (1) Pretreatment of food waste: magnetically separate and oscillate the waste materials, recycle the separated metal and plastic, grind the bones, and use them as organic fertilizers;

[0031] (2) Grinding of kitchen waste: crush the waste treated in step 1 until the particle size is less than 5mm, and pasteurize the material after crushing;

[0032] (3) Solid-liquid separation: the material obtained in step 2 is subjected to solid-liquid separation for the first time, the solid-phase material obtained is washed with water, solid-liquid separation is performed again, and the obtained liquid is combined twice;

[0033] (4) Oil-water separation: Ultrasonic vibration is performed on the combined liquid to recover the upper oil liquid, which is used as raw material for biodiesel or oil for industrial use;

[0034] (5) Biogas production: combine the solid-phase material obtained in step 3 with th...

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Abstract

The invention belongs to the technical field of waste treatment, and in particular to a method for recycling kitchen waste. The method for recycling kitchen waste provided by the invention comprises the following steps: kitchen waste pretreatment, crushing, solid-liquid separation, oil-water separation, biogas preparation and biogas residue separation. The method provided by the invention is reasonably and regularly designed, and not only can conduct effective and environment-friendly treatment on kitchen waste, but also can produce methane, recover oil and obtain by-products, such as organic fertilizer and feed in the treatment process; besides, the method realizes resource utilization of kitchen waste, and has significant economic benefits.

Description

technical field [0001] The invention belongs to the technical field of garbage treatment, and in particular relates to a method for recycling kitchen garbage. Background technique [0002] People will produce all kinds of waste in life and production, which are difficult to deal with and accumulate. Among them, catering and household kitchen waste are typical difficult-to-dispose wastes, and are even used by criminals to extract waste oil. Seriously endanger people's health. The common treatment method of food waste is to bury it or directly use it as animal feed. Burying it on the spot will easily produce peculiar smell, germs, and even produce a large amount of leachate to pollute the groundwater, causing secondary pollution. Direct use as animal feed can easily cause foot-and-mouth disease and various diseases. A disease, and even spread to humans and cause harm. It can be seen that effective and environmentally friendly treatment of kitchen waste is an important measur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B5/00B09B3/00
CPCY02W30/20
Inventor 吴得治武华武伟李鲁豫李保谦李强丁亚照吴奇泽
Owner ZHENGZHOU JINTUDI ENERGY TECH
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