A biological agent for treating glutamic acid fermentation sewage

A biological preparation, glutamic acid technology, applied in microorganisms, natural water treatment, water/sewage treatment, etc., can solve the problems of high density of natural non-metallic minerals, limited specific surface area, difficult separation of solid and liquid, etc., and achieve good degradation effect. , Large specific surface area, the effect of reducing output

Active Publication Date: 2020-06-09
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

Activated carbon is widely used as an important adsorbent material because of its rich pore structure and huge specific surface area, good chemical stability and strong adsorption capacity, but its cost is high
There are also non-metallic ionic minerals such as attapulgite for adsorption, but natural non-metallic minerals have the following limitations as adsorbents: natural non-metallic minerals have high density and limited specific surface area, and the surface of natural non-metallic minerals is mostly negatively charged. And directly using natural non-metallic powder ore such as clay minerals as the adsorbent will have the problem of difficult separation of solid and liquid after adsorption
The applicant group company has been committed to clean amino acid production methods for many years. It once disclosed a process for effectively treating fermentation waste liquid, in which microbial agents were used to treat COD, ammonia nitrogen, and SS effectively, but there were too many strains in the agents. Too much, which increases the possibility of bacterial strain pollution. The amount of bacterial agent used is too large. It is necessary to add 0.5-1kg of physical adsorbent and 15-20g of bacterial agent per ton of sewage, and the bacterial agent is easy to deposit at the bottom of the pool, causing flocculation, thus A large amount of sludge is generated, and it is difficult to clean up

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Get the glutamic acid fermentation liquid of Fufeng workshop, adopt the following steps:

[0034] A. Natural settlement

[0035] The glutamic acid fermentation industrial wastewater flows through multiple grids, the grid gaps of the multiple grids are gradually reduced, discharged into the settling tank, and then the adsorbent is added, and the adsorbent is added into Into the sewage, blow into the air, and then carry out the sedimentation treatment to obtain the supernatant of the industrial wastewater;

[0036] The adsorbent is prepared by mixing shell powder, granite, and polyferric sulfate at a mass ratio of 5:4:1;

[0037] B. Hydrolytic acidification anaerobic biochemical treatment

[0038] First discharge the industrial wastewater supernatant described in step A into an acid-base adjustment tank, adjust the pH to 4, and then discharge it into a hydrolytic acidification tank for anaerobic biochemical treatment by hydrolysis and acidification to obtain industrial wa...

Embodiment 2

[0052] Get the glutamic acid fermentation liquid of Fufeng workshop, adopt the following steps:

[0053] A. Natural settlement

[0054] Glutamic acid fermentation industrial wastewater flows through multiple grids, the grid gaps of the multiple grids are gradually reduced, discharged into the sedimentation tank, and then the adsorbent is added, and the adsorbent is added to the waste water according to the amount of 0.3kg per ton of sewage. Into the sewage, blow into the air, and then carry out the sedimentation treatment to obtain the supernatant of the industrial wastewater;

[0055] The adsorbent is prepared by mixing shell powder, granite, and polyferric sulfate at a mass ratio of 5:4:1;

[0056] B. Hydrolytic acidification anaerobic biochemical treatment

[0057] First discharge the supernatant of the industrial wastewater described in step A into the acid-base adjustment tank, adjust the pH to 6, and then discharge it into the hydrolytic acidification tank for hydrolyt...

Embodiment 3

[0069] Embodiment 3 Treatment example of waste water effect

[0070] Take the glutamic acid fermentation waste liquid in Fufeng production workshop as an example (COD is 934mg / L, ammonia nitrogen 226mg / L, sulfide 77mg / L), taking the method in Example 1 as an example, sampling and measuring COD, ammonia nitrogen, and sulfide data; and set up a control group to detect the compatibility effect of each strain in the bacterial agent:

[0071] Control group 1: do not add rhodococcus, all the other are the same as embodiment 1;

[0072] Control group 2: without adding Bacillus pumilus, the rest are the same as in Example 1;

[0073] Control group 3: without adding Penicillium heterophylla, the rest are the same as in Example 1;

[0074] Control group 4: without adding Micrococcus luteus, the rest are the same as in Example 1;

[0075] Contrast 5 groups: do not add the adsorbent of step A, all the other are the same as embodiment 1.

[0076] The specific test results are shown in ...

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Abstract

The invention relates to a biological preparation for treating glutamic acid fermentation sewage. The biological preparation is prepared by mixing a compound microbial agent and a carrier according to the weight ratio of 2 to 1, wherein the compound microbial agent is prepared from, by weight, 5 parts of rhodococcus fermentation liquor, 5 parts of bacillus pumilus fermentation liquor, 3 parts of penicillium diversum fermentation liquor and 3 parts of micrococcus luteus fermentation liquor. The treatment water quantity and treatment water quality can be improved by adopting the biological preparation, the operating cost is reduced, standard-reaching discharging is promoted, the sludge yield can be also decreased, the biological preparation is advantageous to removal of pollutants such as COD and ammonia nitrogen in waste liquid and has a good application prospect.

Description

technical field [0001] The invention relates to the field of amino acid extraction technology in the biological fermentation industry, and specifically discloses a biological preparation for treating glutamic acid fermentation sewage. Background technique [0002] After isoelectric extraction of glutamic acid from monosodium glutamate fermentation broth, the mother liquor discharged has high COD, BOD5, high bacterial content, high sulfate radical (chloride ion before changing to pH adjustment with sulfuric acid), high ammonia nitrogen content and pH value (1.5 -3.2) Low "five highs and one low" characteristics. It is a kind of industrial wastewater that is very difficult to treat. Due to the ineffective treatment of MSG wastewater, many MSG factories have been listed as national key pollution sources. The treatment of MSG wastewater has become a major problem restricting the development of MSG production enterprises. The treatment technology of this kind of high-concentrat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12N1/20C12N1/14C02F3/34C12R1/07C12R1/80C12R1/265C12R1/01C02F103/36
CPCC02F1/5236C02F3/34C02F2103/36C12N1/14C12N1/20
Inventor 丁兆堂伏广好杜鹏王皓许传娟王彦妮吴明殷王文强
Owner 内蒙古阜丰生物科技有限公司
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