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Efficient resourceful treatment method through separation and anaerobic fermentation for kitchen waste

A technology for kitchen waste and anaerobic fermentation, which is applied in the field of anaerobic fermentation resource treatment technology after efficient sorting, can solve the problem of low economic value of fertilizers, and achieve stable and efficient operation, high economic benefits, and low impurity content. Effect

Inactive Publication Date: 2013-05-01
SOUND ENVIRONMENTAL RESOURCES
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  • Abstract
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  • Application Information

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Problems solved by technology

Due to the high moisture content of food waste, a lot of auxiliary materials need to be added to the composting process, and the economic value of the final fertilizer is not high

Method used

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  • Efficient resourceful treatment method through separation and anaerobic fermentation for kitchen waste
  • Efficient resourceful treatment method through separation and anaerobic fermentation for kitchen waste
  • Efficient resourceful treatment method through separation and anaerobic fermentation for kitchen waste

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specific Embodiment

[0054] Such as figure 1 , figure 2 , image 3 As shown, the implementation process of the food waste comprehensive treatment process is as follows:

[0055] The food waste collection truck dumps the collected original food waste into the garbage hopper, and the connection between the hopper and the subsequent large foreign material removal equipment adopts a screw conveyor or a plate conveyor, and the equipment is also equipped with a bag breaking tool , The lower part is equipped with a leachate collection tank, this transportation step can reduce the moisture content of the kitchen waste to below 80%. The removal of large pieces of foreign materials is to ensure the continuous and stable transportation of the follow-up system and the safe operation of the equipment. This step mainly removes large pieces of impurities with a diameter of ≥120mm, and the removal rate is 99%. The material after impurity removal enters the crushing and impurity removal system. The crushing a...

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Abstract

The invention discloses an efficient resourceful treatment method through separation and anaerobic fermentation for kitchen waste. The method includes the steps of firstly performing preliminary bag breaking and leachate collection on original kitchen waste, and removing chunks of miscellaneous and foreign materials; then performing breaking separation, high temperature sterilization, solid-liquid separation and the like; and then performing oil-water separation, hydrolytic sand removal, hydrolytic acidification, anaerobic fermentation and the like. The method has the advantages that not only harmless kitchen waste is achieved, but also extracted crude oil and produced biogas have high economic benefit simultaneously, and the impurity removal rate of the kitchen waste can reach above 90%.

Description

technical field [0001] The invention relates to a waste harmless and resourceful treatment process, in particular to an anaerobic fermentation resourceful treatment process for high-efficiency sorting of kitchen waste. Background technique [0002] At present, food waste has not been standardized management and harmless disposal in many cities, which seriously endangers the health and environmental sanitation of our people. The garbage of many urban catering enterprises is collected by farmers and used as breeding feed to directly feed livestock. The garbage directly enters the human food chain without harmless treatment. Harmful foods such as swill pigs are always endangering the health of the people; It is rich in a large amount of oil. According to the different living habits of different places, the oil content accounts for between 2 and 5% of the total weight. Unscrupulous traders extract it, and the extracted waste oil is re-refined to become edible oil, which is circ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02C11B13/00C05F5/00
CPCY02E50/343Y02A40/20Y02E50/30Y02W30/40Y02W30/74
Inventor 王亚峰蒋丽娟李天增
Owner SOUND ENVIRONMENTAL RESOURCES
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