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Kitchen garbage pathogenic bacteria high-temperature inactivation technology

A kitchen waste and inactivation technology, applied in waste disinfection or sterilization methods, heating, irradiation and other directions, can solve the problems of unfavorable landfill, incineration, composting, pyrolysis, and high water content of kitchen waste, reaching Conducive to high temperature heat transfer, rapid temperature rise and strong penetration

Active Publication Date: 2008-05-28
青海洁神环境科技股份有限公司
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Problems solved by technology

[0002] Food waste has a high water content, accounting for about 75% to 85% of the total waste, which is not conducive to traditional methods such as landfill, incineration, composting, and pyrolysis, and contains a large number of harmful bacteria and pathogenic bacteria. Traditional treatment methods cannot completely inactivate them. Aiming at the shortcomings of traditional treatment methods, a high-temperature inactivation technology for food waste pathogenic bacteria is now provided.

Method used

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  • Kitchen garbage pathogenic bacteria high-temperature inactivation technology

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Embodiment Construction

[0014] An application example of the device and method is described with reference to FIG. 1 . Xining Qinghai Jieshen Food Waste Disposal Industry Co., Ltd. has established a 60 tons / day harmful bacteria inactivation drying sterilizer based on this technology.

[0015] Through compression, crushing, and dehydration, the particle size of the food waste particles is kept at 0.1-10mm, and the humidity is less than 60%. Then the treated food waste is sent to the feeding port, and then passes through the preheating room, isothermal drying room, High-temperature heating chamber and ultraviolet inactivation chamber are used to inactivate harmful bacteria with high-temperature ultraviolet rays. After entering the preheating room, the temperature of the food waste is raised to 120 °C at 7 °C per minute, and then kept for 15 minutes; in the isothermal drying room, the temperature is maintained at 120 °C, and the food waste stays for 30 minutes under the agitation of the spiral stirrer; ...

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Abstract

The invention relates to a high temperature-UV inactivation device for the harmful bacteria of kitchen garbage and a method thereof. The invention can further carry out UV disinfection even after the constant temperature and high temperature heat treatment of the kitchen garbage in a sealed spiral dryer, so as to inactivate the pathogen, conditioned pathogen and other harmful microorganisms in the kitchen garbage, and safe and sanitary renewable raw materials or feeds can be generated after the inactivation process. The inactivation device has compact structure, high sterilization rate and simple operation, so the invention is a very effective inactivation method of the harmful microorganisms of kitchen garbage.

Description

technical field [0001] The invention relates to a treatment technology of kitchen waste, in particular to a high-temperature inactivation technology of kitchen waste pathogenic bacteria. Background technique [0002] Food waste has a high water content, accounting for about 75% to 85% of the total waste, which is not conducive to traditional methods such as landfill, incineration, composting, and pyrolysis, and contains a large number of harmful bacteria and pathogenic bacteria. Traditional treatment methods cannot completely inactivate them. Aiming at the shortcomings of traditional treatment methods, a high-temperature inactivation technology for food waste pathogenic bacteria is now provided. Contents of the invention [0003] The high-temperature inactivation device for food waste pathogenic bacteria includes a feeding chamber, a preheating chamber, an isothermal drying chamber, a high-temperature heating chamber, an ultraviolet inactivation chamber and the like connec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L11/00A61L2/04A61L2/10
Inventor 梁立宽刘生奎吴长亮谷强白玉娟
Owner 青海洁神环境科技股份有限公司
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