Environment-friendly kitchen waste continuous treatment device and method

A kitchen waste and processing device technology, which is applied in the field of environment-friendly kitchen waste continuous processing devices, can solve the problems of limited landfill storage space, potential health and safety hazards, and high moisture content, and achieve resource utilization and zero waste discharge. , the effect of mild reaction conditions

Pending Publication Date: 2019-08-27
NANJING GEKOF INST OF ENVIRONMENTAL PROTECTION TECH & EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current treatment and disposal method of urban kitchen waste is mainly landfill, but the landfill storage space is limited, and it will increase the load of the subsequent leachate treatment system, and it is easy to cause secondary pollution to the environment during the collection, transportation and landfill treatment. , will pose a threat to health and safety
[0003] Kitchen waste is the most common waste generated in daily life, and it belongs to domestic waste. Its main components include organic matter such as starchy food, plant fiber, animal protein, and fat. It has high moisture content, high oil and salt content, and is easy to Rotting and smelly and inconvenient transportation
For the food waste generated in special areas such as tourist scenic spots, it is very easy to cause harm to the environmental quality during the transportation and transfer process.
At present, the treatment technologies of food waste mainly include landfill, incineration, feed treatment, anaerobic fermentation and aerobic fermentation, etc. Among them, anaerobic fermentation and aerobic fermentation have more potential, but the treatment cycle of these two methods is relatively long , it is difficult to meet the daily production and clearance requirements of food waste
[0004] At present, some kitchen waste treatment equipment on the market has the following problems: 1. Simple crushing of waste can not realize resource utilization; 2. The technology is immature and the operation is unstable; 3. The equipment is huge and cannot adapt to small and medium quantities Garbage Disposal Requirements

Method used

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  • Environment-friendly kitchen waste continuous treatment device and method

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Embodiment 1

[0034] An environment-friendly continuous treatment device for food waste, including pretreatment equipment, a main reactor and exhaust gas treatment equipment connected in sequence, wherein:

[0035]Pretreatment equipment includes solid filtering device, oil-water separation device and organic waste crushing device. The feed end of the solid filter device is connected to the feed device 1, the oil-water separation device is installed under the solid filter device, the organic waste crushing device is installed at the discharge end of the solid filter device, and the outlet end of the organic waste crushing device is connected to the main reactor. feed pipe. The solid filtering device comprises an inert solid filter 2 and a solid-liquid separation screen 5, the front end of the inert solid filter 2 is connected to the feeding device 1, and the solid-liquid separation screen 5 is installed below the inert solid filter 2, and the solid-liquid separation screen 5 It is installed...

Embodiment 2

[0045] A small restaurant produces about 500kg of kitchen waste every day. First, the glass, plastic, wood and scrap metal in it are separated from the organic waste through an inert solid filter device, and the oil and water in the liquid are separated through an oil-water separation system. The organic waste is crushed by the waste crushing system and enters the main reactor for 8 hours of aerobic fermentation. The aeration device continuously supplies oxygen to the reactor so that the oxygen concentration in the reactor is maintained at around 10%. The system adjusts and maintains the temperature of the reactor at 65°C, and controls the humidity in the reactor at 30% through the humidity control system. Finally, the volume of waste after aerobic fermentation is reduced by 50%, and organic fertilizers are produced to realize resource utilization. , A small amount of waste gas produced by the reaction is collected and treated by the tail gas treatment system, and then discharg...

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Abstract

The invention provides an environment-friendly kitchen waste continuous treatment device comprising pretreatment equipment, a main reactor and waste gas treatment equipment. The pretreatment equipmentcomprises a solid filter device, an oil-water separation device and an organic waste crushing device, and the oil-water separation device is installed below the solid filter device; the organic wastecrushing device is installed at the discharging end of the solid filter device, and the outlet end of the organic waste crushing device is connected with the main reactor; the main reactor is internally provided with active aerobic cultures, as well as an aeration device, a temperature control device, a humidity control device and a material mixing device; the top of the other side of the main reactor is connected with the waste gas treatment equipment, and the bottom of one side of the main reactor is connected with a collecting device; and a gas outlet pipeline at the upper part of the waste gas treatment equipment extends out directly and communicates with outside. According to the environment-friendly kitchen waste continuous treatment device, high efficiency degradation of kitchen waste is achieved, and organic fertilizers are obtained; meanwhile, waste gas reaching the standard is discharged, so that harmless treatment and resource utilization are achieved.

Description

technical field [0001] The invention belongs to the field of harmless treatment and resource utilization of organic solid waste, in particular to an environment-friendly continuous treatment device and treatment method for kitchen waste. Background technique [0002] Food waste mainly comes from food processing waste and food residues generated by the catering industry, households, and canteens of enterprises and institutions. With the rapid development of my country's economy and the gradual acceleration of urbanization, the output of food waste nationwide has increased significantly. With the continuous advancement of the urbanization process, food safety and environmental safety have received more and more attention from relevant departments, and the traditional outlet for food waste to be used as raw materials for breeding is shrinking. The current treatment and disposal method of urban kitchen waste is mainly landfill, but the landfill storage space is limited, and it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00C05F9/02C05F9/04
CPCB09B3/00B09B5/00C05F9/02C05F9/04Y02A40/20
Inventor 徐海涛李明波徐延忠宋静刘玉桥
Owner NANJING GEKOF INST OF ENVIRONMENTAL PROTECTION TECH & EQUIP CO LTD
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