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Biological agent used for treating high-concentration waste water produced by amino acid fermentation

A high-concentration wastewater and biological agent technology, applied in biological water/sewage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem that the number of times biological agents are put in, the production of fertilizers, and the compatibility of microorganisms cannot be achieved. Unreasonable and other problems, to achieve the effect of reducing sludge production, low operating costs, and promoting treatment effects

Active Publication Date: 2015-09-09
齐齐哈尔龙江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

[0003] The main problem of wastewater treatment is that the one-time investment is too large, or the daily operation cost is too high, most manufacturers cannot afford it, and have to maintain the status quo of excessive discharge 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
At present, the research is hot on the treatment of wastewater with biological agents, which have the advantages of low cost and no secondary pollution, but have unreasonable microbial compatibility, low treatment efficiency, and microbial carriers have poor internal mass transfer and are not easy to transmit light. Small specific surface area, 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 produces 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

[0024] A biological agent for treating high-concentration wastewater produced by amino acid fermentation, which is prepared according to the following method:

[0025] Step 1) Preparation of composite bacterial solution: Bacillus subtilis, Lactobacillus acidophilus, Acinetobacter baumannii and Sphingomonas were cultured to a concentration of 1×10 7 bacterium solution per ml, then mix according to the volume ratio of 3:2:1:1, and let it stand for 6 hours;

[0026] Step 2) Preparation of compound algae solution: Culture Scenedesmus obliques and Chlorella to a concentration of 1×10 5 Individual / ml of algae liquid, then mix and let stand for 3 hours;

[0027] Step 3) Preparation of biocarriers:

[0028] a): Take the following raw materials in parts by weight: 15 parts of water, 6 parts of humic acid, 5 parts of sucrose, 3 parts of kaolin, 2 parts of ammonium sulfate, 2 parts of chitin, 2 parts of cotton, 1 part of silica gel powder; , the particle size of silica gel powder is 2...

Embodiment 2

[0034] A biological agent for treating high-concentration wastewater produced by amino acid fermentation, which is prepared according to the following method:

[0035] Step 1) Preparation of composite bacterial solution: Bacillus subtilis, Lactobacillus acidophilus, Acinetobacter baumannii and Sphingomonas were cultured to a concentration of 1×10 7 bacterium solution per ml, then mix according to the volume ratio of 3:2:1:1, and let it stand for 6 hours;

[0036] Step 2) Preparation of compound algae solution: Culture Scenedesmus obliques and Chlorella to a concentration of 1×10 5 pcs / ml of algae solution, then mixed according to the volume ratio of 2:1, and let it stand for 3 hours;

[0037] Step 3) Preparation of biocarriers:

[0038] a): Take the following raw materials in parts by weight: 18 parts of water, 8 parts of humic acid, 7 parts of sucrose, 4 parts of kaolin, 3 parts of ammonium sulfate, 3 parts of chitin, 3 parts of cotton, 2 parts of silica gel powder; , the ...

Embodiment 3

[0045] The effect test of biological preparation of the present invention:

[0046] The fermented waste water, which removes fermented cells, polysaccharides and polysaccharides, was used as the treated sample for the test.

[0047] Control group 1: use sawdust carrier; the type of microorganisms is the same as the bacteria and algae used in the test group; treatment method: after three days of continuous dosing, 5g / m3 per day, and then stand for six days, the test results are shown in Table 1.

[0048] Control group 2: The carrier is the same as in Example 2, the difference is that only four kinds of bacteria are added, but no compound algae solution is added; treatment method: add 5g / cubic meter on the first day, then stand for six days, and test the treatment The results are shown in Table 1.

[0049] 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 for six days, t...

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Abstract

The invention relates to the field of amino acid fermentation waste water treatment, in particular to a biological agent used for treating high-concentration waste water produced by amino acid fermentation. The preparation method of the biological agent includes 1, preparing composite bacteria solution; 2, preparing composite algae solution; 3, preparing a biological carrier; 4, preparing the biological agent. The biological agent has the advantages of high waste water treating efficiency, low usage and promised application prospect.

Description

technical field [0001] The invention relates to the field of treatment of amino acid fermentation wastewater, in particular to a biological preparation for treating high-concentration wastewater produced by amino acid fermentation. Background technique [0002] In industrial production, wastewater containing a large amount of amino acids is a kind of organic wastewater with extremely high concentration, which has high concentration of organic matter, high concentration of ammonia nitrogen, SO 4 2- or Cl - It is difficult to handle because of its high concentration and low pH. Although the waste water can remove more than 90% of COD after being treated by bacteria separation, yeast production, anaerobic fermentation, Cr , but the COD of wastewater Cr , The ammonia nitrogen content is still not up to the sewage discharge standard stipulated by the state. A considerable part of these organic waste water is directly discharged into rivers, which not only seriously pol...

Claims

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Application Information

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IPC IPC(8): C02F3/34
Inventor 丁兆堂王均成张传森季新利张修军卢松周敬
Owner 齐齐哈尔龙江阜丰生物科技有限公司
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