A process for removing industrial cod and ammonia nitrogen in monosodium glutamate wastewater

A monosodium glutamate waste water and process technology, applied in the direction of water pollutants, natural water body treatment, biological water/sewage treatment, etc., can solve the problems of complete set of technology application, high daily operation cost, large one-time investment, etc., to increase the amount of treated water, Improve the efficiency of biological treatment and promote the effect of standard discharge

Active Publication Date: 2017-05-17
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, 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

[0032] (1) Take the monosodium glutamate wastewater produced in the Fufeng production workshop, and the wastewater enters the pre-anaerobic pool UASB, and the hydraulic retention time is controlled to be 30h, and the temperature is 35°C, so that the macromolecular substances are broken into small molecular substances, and the organic nitrogen is converted into Inorganic nitrogen, the effluent enters the sedimentation tank;

[0033] (2) Sedimentation tank Adding biological agents for advanced treatment, the biological agents include the following raw materials in parts by weight:

[0034] 8 parts of aerobic denitrifying bacteria, 8 parts of Bacillus, 7 parts of Aspergillus niger, 7 parts of Rhodococcus, 5 parts of Alcaligenes faecalis, 5 parts of Streptomyces rubrum, and 3 parts of Candida albicans.

[0035] The aerobic denitrifying bacteria are aerobic denitrifying bacteria ( Paracoccus pantotrophus ) ATCC 35512.

[0036] The bacillus is a bacillus ( Bacillus sp. ) CGMCC N...

Embodiment 2

[0048] (1) Take the monosodium glutamate wastewater produced in the Fufeng production workshop, and the wastewater enters the pre-anaerobic pool UASB, and the hydraulic retention time is controlled to be 30h, and the temperature is 35°C, so that the macromolecular substances are broken into small molecular substances, and the organic nitrogen is converted into Inorganic nitrogen, the effluent enters the sedimentation tank;

[0049] (2) Sedimentation tank Adding biological agents for advanced treatment, the biological agents include the following raw materials in parts by weight:

[0050] 10 parts of aerobic denitrifying bacteria, 10 parts of Bacillus, 9 parts of Aspergillus niger, 9 parts of Rhodococcus, 8 parts of Alcaligenes faecalis, 8 parts of Streptomyces rubrum, and 5 parts of Candida albicans.

[0051] The aerobic denitrifying bacteria are aerobic denitrifying bacteria ( Paracoccus pantotrophus ) ATCC 35512.

[0052] The bacillus is a bacillus ( Bacillus sp. ) CGMCC...

Embodiment 3

[0063] Embodiment 3 Treatment example of waste water effect

[0064] Take the Fufeng production workshop, glutamic acid extracts waste water, 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;

[0065] Compared with Example 1, the control group 1 did not add complex bacterial agents; compared with Example 1, the control group 2 had only wheat bran as the adsorbent carrier. Sampling and determination of COD, ammonia nitrogen, and total nitrogen data, the test data are shown in Table 1:

[0066] Table 1

[0067] control group 1 control group 2 Example 1 group Example 2 group COD average removal rate 8.3% 55.2% 99.3% 99.4% Ammonia nitrogen average removal rate 9.7% 47.4% 99.1% 99.7%

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PUM

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Abstract

The invention relates to a process for removing industrial COD and ammonia nitrogen in monosodium glutamate wastewater. The process adopts biological preparations for advanced treatment, and the biological preparations are composed of aerobic denitrifying bacteria, Bacillus, Aspergillus niger, Rhodococcus, and Alcaligenes faecalis , Streptomyces rubrum, Candida albicans and the adsorbent carrier are mixed and prepared. It contains a variety of microorganisms that have excellent degradation capabilities for refractory pollutants. The reasonable compatibility between the various strains has a good degradation effect. It has a wide range of application prospects.

Description

technical field [0001] The invention relates to a wastewater treatment method, and in particular provides a process for removing industrial COD and ammonia nitrogen in monosodium glutamate wastewater. Background technique [0002] With the rapid development of the economy and the continuous improvement of technology, my country has become a major producer and consumer of monosodium glutamate, but the amount of wastewater discharged during the production of monosodium glutamate is large, and the mother liquor discharged from the monosodium glutamate fermentation broth after isoelectric extraction of glutamic acid has CODCr High, high BOD5, high bacteria content, high sulfate radical (chloride ion before pH adjustment with sulfuric acid) content, high ammonia nitrogen content and low pH value (1.5-3.2) are characterized by "five highs and one low". It is a kind of industrial wastewater that is very difficult to treat. Due to the ineffective treatment of MSG wastewater, many MS...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/34C02F3/28C02F101/38C02F103/36
Inventor 卢松王均成丁兆堂张传森张修军邵风慧
Owner 内蒙古阜丰生物科技有限公司
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