Kitchen waste on-site treatment method

The technology of a kitchen waste and a treatment method is applied in the field of in-situ treatment of kitchen waste, which can solve the problems of high temperature process energy consumption, large moisture and grease, the growth and reproduction of food waste treatment bacteria, and the like, so as to improve efficiency and resources. The effect of rational use

Active Publication Date: 2013-05-29
北京世纪阿姆斯生物工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an on-site treatment method for kitchen waste, which solves the problem of large energy consumption in the high-temperature process in the fermentation process of the current small-scale on-site treatment of kitchen waste technology, and a large amount of water and oil enters the fermentation treatment system. The growth and reproduction of kitchen waste treatment bacteria cause adverse effects, realize the reduction, harmless and resourceful treatment of kitchen waste, and make up for the deficiencies in the existing technology

Method used

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  • Kitchen waste on-site treatment method

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Effect test

Embodiment 1

[0018] A method for treating food waste in situ, comprising the following steps:

[0019] 1) Initial sorting of food waste: when collecting food waste, sort hard waste such as plastic, metal, porcelain, and big stick bones to avoid damage to equipment in subsequent processing;

[0020] 2) Grinding and dehydration: The pre-sorted food waste enters the crushing and dehydration system, and the water and grease in the food waste are separated through the screw extrusion drainage system, and then enters the oil-water separation system, and the solid matter in the food waste is separated Carry out crushing and enter the fermentation treatment system;

[0021] 3) Medium and high temperature fermentation treatment: transport the solid matter extruded and pulverized in step 2) into the fermentation bin, add a food waste degradation composite microbial agent with a weight ratio of 2‰, adjust the moisture content of the material to 50% by weight, and the initial temperature at Above 35°...

Embodiment 2

[0026] A method for treating food waste in situ, comprising the following steps:

[0027] 1) Initial sorting of food waste: when collecting food waste, sort hard waste such as plastic, metal, porcelain, and big stick bones to avoid damage to equipment in subsequent processing;

[0028] 2) Grinding and dehydration: The pre-sorted food waste enters the crushing and dehydration system, and the water and grease in the food waste are separated through the screw extrusion drainage system, and then enters the oil-water separation system, and the solid matter in the food waste is separated Carry out crushing and enter the fermentation treatment system;

[0029] 3) Medium and high temperature fermentation treatment: transport the solid matter extruded and pulverized in step 2) into the fermentation bin, add a food waste degradation composite bacterial agent with a weight ratio of 2‰, adjust the moisture content of the material to 40% by weight, and the initial temperature at 25°C, pro...

Embodiment 3

[0034] A method for treating food waste in situ, comprising the following steps:

[0035] 1) Initial sorting of food waste: when collecting food waste, sort hard waste such as plastic, metal, porcelain, and big stick bones to avoid damage to equipment in subsequent processing;

[0036] 2) Grinding and dehydration: The pre-sorted food waste enters the crushing and dehydration system, and the water and grease in the food waste are separated through the screw extrusion drainage system, and then enters the oil-water separation system, and the solid matter in the food waste is separated Carry out crushing and enter the fermentation treatment system;

[0037] 3) Medium-high temperature fermentation treatment: transport the solid matter extruded and pulverized in step 2) into the fermentation bin, add a food waste degradation composite bacterial agent with a weight ratio of 2‰, adjust the moisture content of the material to 45% by weight, and the initial temperature at Above 30°C, p...

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Abstract

The invention relates to a kitchen waste on-site treatment method which comprises the following steps of: (1) primary sorting of kitchen waste: when the kitchen waste is collected, sorting out hard waste such as plastic, metals, ceramic pieces, big bones and the like; (2) grinding and dehydration: feeding the kitchen waste after primary sorting into a grinding and dehydration system, separating out water and oil in the kitchen waste by a spiral extrusion draining system, feeding the water and oil into an oil-water separation system, grinding solid matters in the kitchen waste at the same time, and feeding the ground product into a fermentation treatment system; (3) medium and high-temperature fermentation treatment: conveying the solid matters extruded and ground in step (2) into a fermentation bin, treating for 15-25 days to end the fermentation, and discharging; and (4) oil-water separation: conveying the water and oil separated out from the kitchen waste into a waste liquid collection tank, and separating oil from wastewater under the effect of gravity. The method provided by the invention solves the problem of high energy consumption of a high-temperature technology, and realizes reduction, harmlessness and resource treatment of the kitchen waste.

Description

technical field [0001] The invention belongs to the field of garbage treatment, and in particular relates to an in-situ treatment method for kitchen garbage. Background technique [0002] With the rapid development of social economy and the acceleration of urbanization process, the generation of urban domestic waste in my country continues to increase. Kitchen waste accounts for about 37% to 62% of domestic waste. According to statistics, the annual output of urban kitchen waste in my country has exceeded 60 million tons. Kitchen waste has become the "enemy" of food safety and urban development, especially In recent years, incidents such as "garbage pigs" and "waste oil" have emerged one after another, resulting in the problem of kitchen waste rising to a social issue of public concern. [0003] At present, small-scale on-site treatment technology is becoming the research focus of food waste treatment technology. This technology belongs to aerobic composting technology, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F9/04C05F17/00
CPCY02A40/20Y02W30/40
Inventor 李春龙
Owner 北京世纪阿姆斯生物工程有限公司
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