Treatment process of monosodium glutamate fermentation wastewater

A technology for fermentation wastewater and treatment process, which is used in water/sewage treatment, natural water treatment, biological water/sewage treatment, etc. It can solve the problems of difficult separation of solids and liquids, high cost, and large one-time investment, so as to improve the adsorption effect. , The effect of reducing processing costs and reducing dosage

Active Publication Date: 2016-09-07
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
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, which cannot be afforded by most monosodium glutamate factories, and they have to maintain the status quo of excessive emissions for a long time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The treatment process of monosodium glutamate fermentation waste water is characterized in that, comprises the following steps:

[0039] (1) After passing the MSG fermentation wastewater through the grid, it enters the grit chamber, and the sewage separated from sand and water enters the primary sedimentation tank, and passes through the primary sedimentation tank. Facilitates the buoyancy of oil in wastewater , to reduce the content of suspended solids;

[0040] (2) Preparation of physical adsorbent

[0041] Mix according to the mass ratio of forsterite powder, shell powder, perlite powder, and pore-forming agent in a mass ratio of 3:1:1:4, stir evenly, place in a granulator, and add 22% (weight) of water to the mixture , granulated to obtain a particle size of 3 ~ 5mm spherical Green body; drying at 100°C for 20 hours, and calcining at 980°C for 1 hour to obtain a physical adsorbent.

[0042](3) The wastewater treated by the primary sedimentation tank enters the a...

Embodiment 2

[0060] The treatment process of monosodium glutamate fermentation waste water is characterized in that, comprises the following steps:

[0061] (1) After passing the MSG fermentation wastewater through the grid, it enters the grit chamber, and the sewage separated from sand and water enters the primary sedimentation tank, and passes through the primary sedimentation tank. Facilitates the buoyancy of oil in wastewater , to reduce the content of suspended solids;

[0062] (2) Preparation of physical adsorbent

[0063] Mix according to the mass ratio of forsterite powder, shell powder, perlite powder, and pore-forming agent in a mass ratio of 4:2:2:5, stir evenly, place in a granulator, and add 25% (weight) of water to the mixture , granulated to obtain a particle size of 3 ~ 5mm spherical Green body; drying at 100°C for 20 hours, and calcining at 980°C for 1 hour to obtain a physical adsorbent.

[0064] (3) The wastewater treated by the primary sedimentation tank enters the ...

Embodiment 3

[0080] Embodiment 3 Treatment example of waste water effect

[0081] Take the Fufeng production workshop, extract waste water from monosodium glutamate, and enter the sewage treatment system according to the method of embodiment 1-2 respectively, and take samples to measure COD, ammonia nitrogen, and total nitrogen data;

[0082] Compared with Example 1, control group 1 does not add physical adsorbent; compared with Example 1, control group 2 does not add composite bacterial agent. Sampling and determination of COD, ammonia nitrogen, SS, and clarity test data are shown in Table 1:

[0083] Table 1

[0084] COD removal rate Ammonia nitrogen removal rate SS removal rate Clarity control group 1 45.9% 37.8% 52.1% 10cm control group 2 47.3% 60.2% 58.4% 9cm Example 1 group 99.8% 99.1% 98.7% 26cm Example 2 group 99.8% 99.1% 98.9% 27cm

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PUM

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Abstract

The invention relates to a treatment process of monosodium glutamate fermentation wastewater. The wastewater is subjected to physical adsorption and composite bacteria treatment, wherein composite bacteria comprises the following components in parts by weight: 7 parts of azotobacter chroococcum, 5 parts of rhodococcus, 5 parts of bacillus amyloliquefaciens, 4 parts of clostridium papyrosolvens, 4 parts of penicillium ochrochloron, 3 parts of pseudomonas aeruginosa and 2 parts of bacillus cereus. As the composite bacteria contain various microorganisms that have an excellent degradation capability for refractory pollutants, and respective bacteria are combined reasonably, a good degradation effect is realized, and the treatment process of the monosodium glutamate fermentation wastewater has a broad application prospect.

Description

technical field [0001] The invention relates to a method for treating waste water, and in particular provides a treatment process for monosodium glutamate fermentation waste water. Background technique [0002] Monosodium glutamate is a widely used food freshening agent. The production of monosodium glutamate will produce a large amount of high-concentration organic wastewater. The monosodium glutamate wastewater has a large amount of water, high bacterial content, high organic content, COD reaches 20-80g / L, suspended solids, The content of sulfate and ammonia nitrogen is high, the pH value is low, the treatment is extremely difficult, and the treatment cost is extremely high. Therefore, many monosodium glutamate manufacturers fail to effectively treat monosodium glutamate wastewater, which has brought great harm to the environment and social development. The monosodium glutamate industry The pollution caused by production wastewater to the environment is becoming more and m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F103/36
CPCC02F1/004C02F1/281C02F1/5263C02F1/56C02F3/34C02F9/00C02F2001/007C02F2103/36
Inventor 王均成刘海涛杜鹏徐亚娟徐淑伟聂建伟
Owner 内蒙古阜丰生物科技有限公司
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