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A kind of treatment method of erythritol bacteria residue

A technology of erythritol and fungal residue, which is applied in the field of treatment of erythritol and fungal residue, can solve the problems of polluting the environment, long drying time, and difficulty in solid-liquid separation, achieving less pollutant discharge and significant economic benefits , Efficient solid-liquid separation effect

Active Publication Date: 2016-09-21
FUTASTE PHARM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So solid-liquid separation is very difficult
In the early fermentation industry, the fungus residue was generally dried naturally, but this method occupies a large area, takes a long time to dry, and emits a foul odor during drying to pollute the environment.
The diameter of the yeast used for erythritol fermentation is between 50-100nm, which is smaller than the common fermentation bacteria, and the specific gravity of the solid in the bacteria residue is roughly the same as that of water. Traditional solid-liquid separation equipment such as belt type Presses, disc centrifuges, tube centrifuges, etc. cannot separate the water
Although the existing fungus residue drying equipment can completely dry the fungus residue, a large amount of heat is required in the drying process due to the high water content of the fungus residue, the cost is too high, and the use value of the dried fungus residue is not high.
Due to the low pH value of erythritol bacteria residue and the small cell volume, the existing chemical conditioner formula combined with flocculant dehydration has no effect on it

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The present invention relates to a kind of treatment method of erythritol bacterial residue, comprising the following steps:

[0034] Step 1. Prepare a polyacrylamide solution with a mass percentage concentration of 1%. When preparing, first add the weighed polyacrylamide particles into the water, stir rapidly for 30 minutes, so that the particles are evenly distributed in the water, and then let it stand for 24 hours. ;

[0035] Step 2, put the erythritol bacteria residue with a water content of 90%-95% and a pH value of 1-4 into the settling tank;

[0036] Step 3. Pour the potassium dihydrogen phosphate particles accounting for 1.5% of the mass percentage of the bacteria residue into the settling tank, and start the stirring device to stir for 30 minutes;

[0037] Step 4. Pour the polyaluminum chloride powder accounting for 1.5% of the mass percentage of the bacteria residue into the settling tank, and start the stirring device for stirring, and the stirring time is ...

Embodiment 2

[0041] The present invention relates to a kind of treatment method of erythritol bacterial residue, comprising the following steps:

[0042] Step 1. Prepare a polyacrylamide solution with a mass percentage concentration of 0.5%. When preparing, first add the weighed polyacrylamide particles into the water, stir rapidly for 15 minutes to make the particles evenly distributed in the water, and then let it stand for 12 hours. ;

[0043] Step 2, put the erythritol bacteria residue with a water content of 90%-95% and a pH value of 2-3 into the settling tank;

[0044] Step 3, pour the sodium carbonate particles accounting for 1.5% of the mass percentage of the bacterium residue into the settling tank, open the stirring device for stirring, and the stirring time is 30 minutes;

[0045] Step 4. Pour the polyaluminum chloride powder accounting for 1.5% of the mass percentage of the bacteria residue into the settling tank, and start the stirring device for stirring, and the stirring ti...

Embodiment 3

[0049] The present invention relates to a kind of treatment method of erythritol bacterial residue, comprising the following steps:

[0050] Step 1. Prepare a polyacrylamide solution with a mass percentage concentration of 0.8%. When preparing, first add the weighed polyacrylamide particles into the water, stir rapidly for 20 minutes to make the particles evenly distributed in the water, and then let it stand for 18 hours. ;

[0051] Step 2, put the erythritol bacteria residue with a water content of 90%-95% and a pH value of 2-3 into the settling tank;

[0052] Step 3, pour the sodium acetate particles accounting for 1.2% of the mass percentage of the bacteria residue into the settling tank, open the stirring device for stirring, and the stirring time is 30 minutes;

[0053] Step 4, pour the polyaluminium chloride powder accounting for 1.3% of the mass percentage of the bacteria residue into the settling tank, start the stirring device to stir, and the stirring time is 30 minu...

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Abstract

The invention provides a method for treating erythritol bacteria residue, which uses various compounds to treat the erythritol bacteria residue in a certain order, so as to achieve high-efficiency solid-liquid separation effect. The invention has the advantages of low energy consumption, small investment, simple and easy method, low operating cost, remarkable effect, less pollutant discharge and suits for industrialized production; it has remarkable economic, social and environmental benefits.

Description

technical field [0001] The invention belongs to the technical field of functional sugar production, and in particular relates to a treatment method for erythritol bacteria residue. Background technique [0002] After the fermentation of erythritol is finished, the fermented liquid is sterilized by high temperature and then filtered by a ceramic membrane to separate the bacteria residue from the alcohol liquid. The pH value of the liquid bacteria residue is very low, only 1-4, which has no use value and can only be used as sewage However, the fungus residue is rich in organic nutrients, and the COD is extremely high, about 300,000 mg / liter, which makes it more difficult for the sewage treatment station to treat and seriously affects the sewage treatment indicators. [0003] Erythritol slag is a product of yeast fermentation, with a water content between 90-95%. The solids in the slag contain not only a large amount of mycelium, but also rich in organic matter, bacterial prote...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D21/01
Inventor 曲廷云李金华马宗亮董铭沈丽丽付丽云
Owner FUTASTE PHARM CO LTD