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Method for realizing innocent treatment and comprehensive utilization of kitchen waste

A technology of harmless treatment and kitchen waste, applied in the fields of biochemical equipment and methods, biomass post-processing, biomass pre-treatment, etc. problems, to achieve the effects of low system energy consumption and operating costs, small environmental impact, and simple process flow

Active Publication Date: 2012-07-25
北京中源创能工程技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the food waste itself has a very high moisture content and a low calorific value of combustion, it is not suitable for entering the incineration system; using landfill to dispose of food waste not only occupies a large amount of landfill storage capacity, but also easily leads to damage to the landfill environment; The technology of producing fertilizer (feed) by high-temperature sterilization has problems such as high energy consumption and food safety; while aerobic composting has problems in product sales, and it is easy to produce a series of problems such as stench and greenhouse gas

Method used

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  • Method for realizing innocent treatment and comprehensive utilization of kitchen waste
  • Method for realizing innocent treatment and comprehensive utilization of kitchen waste

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Embodiment Construction

[0025] The embodiment of the present invention provides a method for the harmless treatment and comprehensive utilization of kitchen waste. , Composition of comprehensive utilization of products,

[0026] Specifically follow the steps below:

[0027] After the food waste in the canteen is collected, impurities such as plastic packaging, knives, forks, plastic packaging, and dregs are manually or mechanically selected, and the sorted food waste is poured into the solid-liquid separation system, and the liquid part flows into the oil-water separation under the platform System, the solid part is collected to the crusher for crushing, the oil treated by oil-water separation enters the oil collection tank, the liquid part after oil-water separation, the returned biogas slurry, and the crushed part are mixed and adjusted, and the homogenization process is under the action of steam , carry out secondary oil-water separation, the separated oil also enters the oil collection tank, the...

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Abstract

The invention relates to a method for realizing innocent treatment and comprehensive utilization of kitchen waste, comprising the steps of 1, sorting kitchen waste; 2, separating solid and liquid; 3, separating oil and water; 4, crushing waste; 5, performing homogenate and size mixing; 6, biologically acidifying; 7, performing anaerobic fermenting; and 8, comprehensively utilizing product. The process method is simple; the investment operation cost is low; the oil in the waste can be extracted; the biogas is produced by anaerobic fermentation of the kitchen waste, and the organic fertilizer can be produced, therefore, the innocent treatment of the kitchen waste can be realized, the waste can be converted into energy, and the virtuous circle of resource substance can be realized.

Description

technical field [0001] The invention relates to a method for realizing harmless treatment and comprehensive utilization of kitchen waste, in particular to a method for extracting oil from kitchen waste and simultaneously producing biogas and organic fertilizer through anaerobic digestion. Background technique [0002] In the present invention, "food waste" refers to food processing leftovers and food residues produced by families, schools, canteens and catering industries. Its composition is complex, which is a mixture of oil, water, fruit peel, vegetables, rice noodles, fish, meat, bones, waste tableware, plastic, paper towels and other substances. Kitchen waste has high moisture content, poor dehydration performance, high temperature perishability, and easy breeding of mosquitoes and germs. The treatment of the above-mentioned kitchen waste has attracted increasing attention. [0003] At present, the main treatment and disposal methods of food waste include high-temperatu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B5/00B09B3/00C11B13/00C12M1/107C05F9/04
CPCY02E50/343C12M45/04C12M47/18C12M21/04Y02E50/30Y02W30/40
Inventor 朱朋孙晓红张言超王龙
Owner 北京中源创能工程技术有限公司
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