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Treatment method of kitchen waste

A treatment method and a technology of kitchen waste, which are applied in the direction of the device whose axial direction of the swirl can be reversed, the waste fuel, the swirl device, etc., can solve the problems of low quality, poor pretreatment working environment, etc., and achieve the oil extraction rate High efficiency, improved work efficiency and quality, less waste of organic matter

Active Publication Date: 2014-12-24
清勤水处理科技(上海)有限公司
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Problems solved by technology

[0006] The original food waste contains nearly 90% water, but based on the design basis of the traditional CSTR anaerobic reactor based on the hydraulic retention time, the previous mainstream process of food waste treatment was mainly dry pretreatment, resulting in pretreatment Dealing with harsh conditions with poor working environment and low quality

Method used

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Embodiment Construction

[0077] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and not to limit the present invention.

[0078] Such as figure 1 As shown, the collected food waste is poured into a collecting hopper, the output of the collecting hopper is connected with the input of the equipment used in the next step of coarse impurities separation, and the food can be transported by conventional conveyor belts, conveyor chains, etc. Trash to the next processing step. Bag breaking device, magnetic sorting device and other devices conventionally used for preliminary sorting of kitchen waste can be additionally set up during the dumping and transportation process to deal with the bag breaking and magnetic sorting of kitchen waste to remove the metal in the kitchen waste. The ingredients and no...

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Abstract

The invention relates to a treatment method of kitchen waste. The treatment method mainly comprises the following steps: pouring materials; separating coarse impurities; separating heavy impurities; removing oil; grinding slurry; carrying out anaerobic digestion; carrying out aerobic treatment; and introducing tap water and water exhausted after aerobic treatment in a coarse impurity separating process, and introducing water exhausted in an anaerobic digestion step in a heavy impurity separating and oil-removing process. The water is added, so that the impurity removing step, the oil extracting step and the crushing step in the kitchen waste pretreatment are perfect, the working environment is clean and automatic, and the working efficiency and the working quality are greatly improved. The pretreatment of the kitchen waste is automatic, the impurity removal is complete, the organic substance waste is little, the grease extracting rate is high, and the slurry is fine and beneficial to quick degradation of anaerobic microorganisms.

Description

Technical field [0001] The invention relates to a method for processing garbage, in particular to a method for processing kitchen garbage. Background technique [0002] On August 2, 2011, the National Development and Reform Commission, the Ministry of Finance, and the Ministry of Housing and Urban-Rural Development announced that they will arrange a special fund of 630 million yuan for the development of circular economy to support 33 pilot cities (districts) across the country to carry out the resource utilization and harmless treatment of kitchen waste , To provide experience and reference for exploring the "outlet" of food waste in various places. Food waste is a unique environmental protection subject of Chinese food culture. Since then, China has carried out research and pilot projects on the treatment of food waste. [0003] The pretreatment of food waste was mostly manually sorted in the early days. The working environment was very bad and the work quality could not be guar...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12P5/02C12M1/107B04C5/00
CPCY02E50/30
Inventor 王亦勤
Owner 清勤水处理科技(上海)有限公司
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