A compound biological preparation for treating threonine fermentation wastewater

A technology for biological preparations and fermented wastewater, which is applied in biological water/sewage treatment, water/sludge/sewage treatment, bacteria, etc. It can solve the problem of many times of feeding biological preparations, poor mass transfer inside the microbial carrier, and unreasonable microbial compatibility. and other problems, to achieve the effect of promoting nitrification and denitrification, reducing sludge production and low operating costs

Active Publication Date: 2017-01-25
内蒙古阜丰生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, at present, there is no mature complete set of technology applied to production practice at home and abroad.
The main problem is that the one-time investment is too large, or the daily operation cost is too high, most manufacturers cannot bear it, and have to maintain the status quo of excessive emissions for a long time
The applicant's previous research was to use wastewater as a fertilizer, which is suitable for enterprises with fertilizer production qualifications and capabilities, but for other amino acid production enterprises, it cannot achieve the purpose of producing fertilizers
[0004] At present, biological preparations are hotly researched, which have the advantages of low cost and no secondary pollution, but there are unreasonable microbial compatibility, low treatment efficiency, and the microbial carrier has poor internal mass transfer, is not easy to transmit light, and has a specific surface area. Small size, short service life and other defects; biological agents need to be put in many times, which increases the cost, and the large amount of dosing results in a large amount of sludge, which is not easy to handle

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A compound biological preparation for treating threonine fermentation wastewater, which is prepared according to the following method:

[0023] 1) Weigh the following raw materials in parts by weight for later use, including 20 parts of water, 8 parts of polyethylene glycol, 7 parts of humic acid, 5 parts of sucrose, 3 parts of kaolin, 2 parts of ammonium sulfate, 2 parts of chitin, silica gel 1 part powder;

[0024] 2) Crush humic acid with a crusher, then add kaolin, mix well, and grind to 100-mesh powder;

[0025] 3) Add water, polyethylene glycol, sucrose, ammonium sulfate, chitin and silica gel powder to the stirred reactor in sequence, stir at 200 rpm for 10 min, then add the powder in step 2), and stir at 500 rpm for 3 min, Then let it stand for 12 hours, and finally dry it at 60°C until the moisture content is lower than 5% (parts by weight), to obtain the biological carrier;

[0026] 4) Cultivate Bacillus subtilis, Lactobacillus acidophilus, Acinetobacter bau...

Embodiment 2

[0029] A compound biological preparation for treating threonine fermentation wastewater, which is prepared according to the following method:

[0030] 1) Weigh the following raw materials in parts by weight for later use, including 25 parts of water, 10 parts of polyethylene glycol, 8 parts of humic acid, 7 parts of sucrose, 4 parts of kaolin, 3 parts of ammonium sulfate, 3 parts of chitin, silica gel 2 parts of powder; wherein, the particle size of silica gel powder is 200 mesh;

[0031] 2) Crush humic acid with a crusher, then add kaolin, mix well, and grind to 100-mesh powder;

[0032] 3) Add water, polyethylene glycol, sucrose, ammonium sulfate, chitin and silica gel powder to the stirred reactor in sequence, stir at 200 rpm for 10 min, then add the powder in step 2), and stir at 500 rpm for 3 min, Then let it stand for 12 hours, and finally dry it at 60°C until the moisture content is lower than 5% (parts by weight), to obtain the biological carrier;

[0033] 4) Bacillu...

Embodiment 3

[0036] The effect test of biological preparation of the present invention:

[0037] The fermented waste water, which removes fermented cells, polysaccharides and polysaccharides, was used as the treated sample for the test.

[0038] Control group 1: Diatomaceous earth carrier was used; the type of microorganisms was the same as that of the test group; treatment method: after three days of continuous dosing, 5g / m3 per day, and then left to stand for six days, the test and treatment results are shown in Table 1.

[0039] Control group 2: The carrier is the same as in Example 2, the difference is that only four kinds of bacteria are added, but Scenedesmus obliques is not added; treatment method: add 5g / cubic meter on the first day, and then leave it for six days to detect See Table 1 for the processing results.

[0040]Test group: the biological preparation prepared in Example 2 of the present invention; treatment method: one day after adding, 5g / cubic meter, and then standing f...

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Abstract

The invention relates to the field of treatment of amino acid fermentation wastewater, and discloses a composite biological preparation for treating threonine fermentation wastewater, which includes biological carriers, fungi and algae. The biological carrier of the composite biological preparation of the invention has a large specific surface area, good biological adhesion, and reasonable compatibility of various microorganisms, thereby improving the ability of treating waste water.

Description

technical field [0001] The invention relates to the field of treatment of amino acid fermentation wastewater, in particular to a composite biological preparation for treating threonine fermentation wastewater. Background technique [0002] Threonine (Threonine, abbreviated as Thr), scientific name 2-amino-3-hydroxybutyric acid, belongs to aliphatic amino acid, slightly sweet, named for its structure similar to threose, is a kind of human, animal and plant protein Essential amino acids are mainly used in medicine, chemical reagents, and nutritional enhancers. They can strengthen dairy products, restore human fatigue, and promote growth and development. In recent years, with the development of the economy, the market demand for threonine has continued to grow steadily, and it is one of the amino acid varieties with the fastest growing demand. Especially, the use in chemistry and biochemistry, food additives, feed additives, etc. has grown rapidly. It replaces tryptophan and b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C12N1/20
Inventor 卢松王均成丁兆堂张传森时夫龙梁晓娟邵风慧
Owner 内蒙古阜丰生物科技有限公司
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