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Biological treatment method for efficiently degrading kitchen garbage grease

A food waste and biological treatment technology, applied in the direction of separation of microorganisms, removal of solid waste, etc., can solve problems such as food safety, endangering the physical and mental health of the people, and increasing the difficulty of waste disposal, achieving convenient operation, thorough degradation effect, No secondary pollution effect

Inactive Publication Date: 2013-02-13
SOUTH CHINA NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above disposal methods not only bring food safety problems, but also endanger the physical and mental health of the people, and increase the difficulty of garbage disposal, which has aroused widespread concern in the society.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A biological treatment method for efficiently degrading kitchen waste grease, comprising the following steps:

[0028] (1) Strain collection and domestication: Collect water samples containing kitchen waste from the sewer of the canteen in Taoyuan, South China Normal University, put the water samples in a sterile bottle filled with glass beads and shake for 1 hour to break up the bacterial micelles. Release the free bacteria; take the bacterial liquid and add it to the liquid acclimation medium, 32°C, 180r / min constant temperature shaking culture, transfer 10ml of culture to 30ml of new liquid acclimatization medium every 7d, and the acclimatization process lasts for 2 months;

[0029] (2) Preliminary screening of strains: Take 1ml of acclimatized and cultivated bacterial solution and plant it on the primary screening medium plate, culture at a constant temperature of 32°C for 48 hours, measure the diameter of the hydrolysis circle around the colony, and select the colon...

Embodiment 2

[0035] A biological treatment method for efficiently degrading kitchen waste grease, comprising the following steps:

[0036] (1) Bacteria collection and domestication: collect food waste from the garbage dump at the South Gate of Huashi University, put the food waste into a sterile bottle filled with glass beads and shake for 2 hours, break up the bacterial micelles, and release free bacteria; take bacteria The liquid was added to the liquid acclimation medium, 32°C, 180r / min constant temperature shaking culture, and every 7 days, 10ml of culture was transferred to 30ml of new liquid acclimatization medium, and the acclimatization process lasted for 2 months;

[0037] (2) Preliminary screening of strains: Take 1ml of acclimatized and cultivated bacterial solution and plant it on the primary screening medium plate, culture at a constant temperature of 32°C for 48 hours, measure the diameter of the hydrolysis circle around the colony, and select the colony with a diameter of the...

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Abstract

The invention discloses a biological treatment method for efficiently degrading kitchen garbage grease. The method comprises the following steps of: (1) performing domestication on kitchen garbage strain liquid; (2) performing preliminary screening on strains; (3) re-screening the strains; (4) preparing working strain liquid; and (5) adding the kitchen garbage grease and the working strain liquidinto a basic fermentation medium, wherein the initial pH value is adjusted to be 7.0-8.0; adding Tween-80; performing shake cultivation at the temperature of 30-35 DEG C and the speed of 170-200r / minute for at least 72 hours; adding the working strain liquid into solid kitchen garbage powder until the humidity of the solid kitchen garbage powder is 50-80 percent; next, adding distilled water every day to keep the humidity of the powder; and treating for at least 7 days. In the method, a kind of mixed flora capable of efficiently degrading the grease is separated and screened from the scattered kitchen garbage and is used for degrading the grease in the kitchen garbage, so that the kitchen garbage can be prepared into culture medium which is suitable for breeding lower organisms such as earthworm and the like, and the aim of recycling the kitchen garbage is fulfilled.

Description

technical field [0001] The invention relates to a biological treatment method for efficiently degrading grease in kitchen waste. Background technique [0002] With the improvement of people's living standards, the amount of urban kitchen waste has increased dramatically, and the content of oil in the waste has also gradually increased. If a huge amount of kitchen waste is mixed with other urban waste into the garbage collection and transportation system, it will produce unpleasant odors and affect the surrounding environment, and the waste oil from restaurants will directly affect the operation of the urban sewage system. On the one hand, it will affect the recovery of water bodies. Oxygen and the natural purification process will harm the water ecosystem and seriously pollute the surrounding environment. On the other hand, it will also easily cause blockage of sewage channels and cause other negative effects. [0003] At present, the management of food waste in most cities...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B09B3/00B09B5/00C12N1/02
Inventor 马广智张苇张璋黄儒强陈孔亮潘淦林盛虞为彭乐武佳韵陈世文张涛郭文康梁学世陈纯纯芦双高艳明赵盼盼黄陈玲
Owner SOUTH CHINA NORMAL UNIVERSITY
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