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vitamin b 12 Method for partially replacing demethyl chlortetracycline fermentation production water with production wastewater

A technology for demethyl chlortetracycline and production wastewater, applied in the direction of fermentation, etc., can solve the problems of waste of resources, many suspended solids, complex wastewater components, etc., to reduce the cost of environmental protection treatment, reduce the environmental pollution index, and reduce the efficiency of fermentation production water. Effect

Active Publication Date: 2022-03-08
HEILONGJIANG HUARUI BIOTECHNOLOGY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) The content of organic matter is high, and the COD concentration is 60000-70000mg / L;
[0005] 2) High sugar content, the total sugar content of wastewater is about 2.5%;
[0007] 4) The composition of wastewater is complex, mainly residual sugar, protein, organic acid, metabolic intermediate products and a small amount of vitamin B 12 Wait;
[0008] 5) The color of the wastewater is deep, dark brown, and there are many suspended solids
[0009] for vitamin B 12 There is currently no effective and high value-added utilization method for production wastewater, and it can only be discharged directly into the sewage treatment system, which not only increases the load and treatment costs of the sewage treatment system, but also causes a waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Vitamin B 12 Wastewater 50m 3 .

[0031] Pretreatment: first adjust vitamin B with 10% hydrochloric acid 12 The pH of the production wastewater is adjusted to 3.5, then 2kgε-polylysine is added, and stirred for 60 minutes.

[0032] Adsorption treatment: maintain vitamin B after pretreatment 12 The temperature of the production wastewater is 30°C, 5 kg of nano fullerenes are added, stirring is continued for 80 minutes, and then left to stand for 40 minutes.

[0033] Ceramic membrane filtration: the vitamin B after adsorption treatment 12 Wastewater is filtered through ceramic membranes to obtain primary treated water.

[0034] Ultrafiltration treatment: The primary treatment water is circulated and filtered in a cross-flow mode, the cross-flow flow rate is controlled at 9L / s, the pressure is controlled at 0.1-0.2MPa, and the filtrate temperature is controlled at 30°C; after the ultrafiltration is completed, the secondary treatment water is obtained.

[0035] After ...

Embodiment 2

[0039] Vitamin B 12 Wastewater 50m 3 .

[0040] Pretreatment: first adjust vitamin B with 11% sulfuric acid 12 The pH of the production wastewater was adjusted to 3.6, then 2.5kgε-polylysine was added and stirred for 65 minutes.

[0041] Adsorption treatment: maintain vitamin B after pretreatment 12 The temperature of the production wastewater is 32°C, 6 kg of nano fullerenes are added, the stirring is continued for 85 minutes, and then left to stand for 45 minutes.

[0042] Ceramic membrane filtration: the vitamin B after adsorption treatment 12 Wastewater is filtered through ceramic membranes to obtain primary treated water.

[0043] Ultrafiltration treatment: The primary treatment water is circulated and filtered in the cross-flow mode, the cross-flow flow rate is controlled at 10L / s, the pressure is controlled at 0.1-0.2MPa, and the filtrate temperature is controlled at 35°C; after the ultrafiltration is completed, the secondary treatment water is obtained.

[0044] ...

Embodiment 3

[0048] Vitamin B 12 Wastewater 50m 3 .

[0049] Pretreatment: first adjust vitamin B with 12% hydrochloric acid 12 The pH of the production wastewater was adjusted to 3.7, then 3kgε-polylysine was added and stirred for 70min.

[0050] Adsorption treatment: maintain vitamin B after pretreatment 12 The temperature of the production wastewater is 35°C, 7.5 kg of nano fullerenes are added, stirring is continued for 90 minutes, and then left to stand for 50 minutes.

[0051] Ceramic membrane filtration: the vitamin B after adsorption treatment 12 Wastewater is filtered through ceramic membranes to obtain primary treated water.

[0052] Ultrafiltration treatment: The primary treatment water is circulated and filtered in the cross-flow mode, the cross-flow flow rate is controlled at 11L / s, the pressure is controlled at 0.1-0.2MPa, and the filtrate temperature is controlled at 40°C; after the ultrafiltration is completed, the secondary treatment water is obtained.

[0053] After...

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PUM

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Abstract

The invention relates to a vitamin B 12 The production wastewater partly replaces the method of demethylation aureomycin fermentation production water. This method is to use vitamin B after pretreatment, adsorption treatment, ceramic membrane filtration treatment and ultrafiltration treatment. 12 The production wastewater is used as production water and directly reused in the fermentation production of desmethylchlortetracycline. The present invention will be processed vitamin B 12 The production wastewater is directly reused in the fermentation production of desmethylchlortetracycline, which can realize the production of vitamin B 12 Zero discharge of waste water, reducing the environmental pollution index and environmental protection treatment cost, and also reducing the water used for the fermentation of demethylaureomycin, reducing its production cost, and vitamin B 12 The wastewater treatment process is simple and the cost is low.

Description

technical field [0001] The invention belongs to the technical field of biological fermentation wastewater treatment and reuse, and in particular relates to a vitamin B 12 The production wastewater partly replaces the method of demethylation aureomycin fermentation production water. Background technique [0002] Vitamin B 12 It is a cobalt-containing water-soluble vitamin, the main component of which is cyanocobalamin. It is clinically used to treat pernicious anemia and restore hematopoietic function, and is also used for nervous system diseases such as multiple neuritis and peripheral nerve paralysis. It is also used to treat liver diseases such as hepatitis and cirrhosis. For a long time, vitamin B 12 The clinical usage has grown steadily. In addition, vitamin B 12 It also forms a multivitamin product together with other vitamins, and is widely sold as an OTC drug and health food. [0003] Production of vitamin B by two-step fermentation 12 During the process, a la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12P29/00
CPCC12P29/00
Inventor 张萍任勇
Owner HEILONGJIANG HUARUI BIOTECHNOLOGY CO LTD