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Pretreatment method of antibiotic production waste water

A technology for the production of wastewater and antibiotics, applied in multi-stage water treatment, water/sewage treatment, natural water treatment, etc., can solve problems such as ineffective treatment, secondary pollution, waste of water resources, etc., and reduce the pressure of subsequent biochemical treatment , low processing cost, high processing efficiency

Active Publication Date: 2017-04-26
SHENYANG POLYTECHNIC UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the physicochemical method is used to treat high-concentration antibiotic production wastewater, there are problems such as large dosage of chemical reagents and ineffective treatment effect.
At the same time, a large number of chemical reagents are likely to cause secondary pollution to the environment, and in the subsequent biochemical reactions, if the COD of the influent water is too high, the influent water needs to be diluted, resulting in an increase in the final water output, causing serious damage to water resources. waste

Method used

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  • Pretreatment method of antibiotic production waste water
  • Pretreatment method of antibiotic production waste water
  • Pretreatment method of antibiotic production waste water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Embodiment 1: Azithromycin production wastewater pretreatment method:

[0052] Azithromycin production wastewater from a pharmaceutical company in Jiangsu was taken for a pilot test. The experimental process is as follows:

[0053] (1) First-level micro-electrolysis: Azithromycin production wastewater is discharged from the production workshop and enters the regulating pool. 2 SO 4 After adjusting the pH of the wastewater to 3.0-5.0, it enters the first-stage micro-electrolysis reactor. In the micro-electrolysis reactor, the wastewater rapidly undergoes galvanic reaction and redox reaction. Under the action of aeration, the wastewater and the structured packing are fully contacted and mixed to make the reaction continue. Proceed efficiently.

[0054] (2) Primary coagulation and sedimentation: After micro-electrolysis treatment, most of the small molecular organic matter in the wastewater is removed, and at the same time, the filler has a certain decolorization effect ...

Embodiment 2

[0060] Embodiment 2: solvent wastewater pretreatment method

[0061] The solvent wastewater from a pharmaceutical company in Jiangsu was taken for a pilot test. The experimental process is as follows: (1) First-level micro-electrolysis: the solvent wastewater is discharged from the production workshop and enters the regulating pool. 2 SO 4 Adjust the pH of the wastewater to 3.0-5.0 and then enter the primary micro-electrolysis reactor. Under the action of aeration, the waste water and the structured packing are fully contacted and mixed, so that the reaction can continue to proceed efficiently.

[0062] (2) Primary coagulation and sedimentation: By adding NaOH to adjust the pH of the wastewater to above 9.0, and adding PAC and PAM, the suspended particles in the wastewater are flocculated and removed by sedimentation, and finally achieve the effect of mud-water separation.

[0063] (3) Advanced electrocatalytic oxidation: After the initial coagulation and precipitation, the ...

Embodiment 3

[0068] Embodiment 3: Azithromycin production wastewater pretreatment method

[0069] Azithromycin production wastewater from a pharmaceutical company in Liaoning was taken for a pilot test. The experimental process is as follows:

[0070] (1) First-level micro-electrolysis: Azithromycin production wastewater is discharged from the production workshop and enters the regulating pool. 2 SO 4 After adjusting the pH of the wastewater to 3, it enters the first-stage micro-electrolysis reactor. The wastewater undergoes galvanic reaction and redox reaction rapidly in the micro-electrolysis reactor. Under the action of aeration, the wastewater and the structured packing are fully contacted and mixed to make the reaction continue and efficiently proceed. .

[0071] (2) Primary coagulation and sedimentation: After micro-electrolysis treatment, most of the small molecular organic matter in the wastewater is removed, and at the same time, the filler has a certain decolorization effect on...

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Abstract

The invention provides a pretreatment method of antibiotic production waste water. The method is characterized in that the method comprises the following steps: (1) first level micro-electrolysis; (2) primary coagulating sedimentation; (3) advanced electrocatalytic oxidation; (4) second level micro-electrolysis; (5) secondary coagulating sedimentation. The method mainly aims at deficiency in the prior waste water pretreatment method in the antibiotic production process, and has the advantages of high treatment efficiency and low treatment cost; COD and chromaticity of antibiotic production waste water treated by the process reach the standard.

Description

[0001] Technical field: [0002] The invention belongs to the field of waste water treatment, and in particular relates to a treatment method for antibiotic production waste water. [0003] Background technique: [0004] At present, my country has become one of the world's major producers of antibiotic preparations. The wastewater produced by the production of antibiotics often contains a wide variety of organic pollutants with a high concentration (COD is 5000-80000mg / L), most of which are difficult to biodegrade directly, resulting in a long retention time in the environment, which is harmful to the environment. create pollution. Antibiotic production wastewater also contains "three causes" (carcinogenic, teratogenic, mutagenic) organic pollutants, even if their concentration in the water body is lower than 10 -9 levels are still extremely harmful to human health. For the treatment of these organic wastewater with various types of organic matter and complex components, no ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/06C02F103/36
CPCC02F1/46109C02F1/46176C02F1/467C02F1/4672C02F1/5245C02F1/56C02F1/66C02F1/725C02F9/00C02F2001/46138C02F2103/343C02F2301/08
Inventor 崔丽黄开拓沈新军苏仲民刘婷婷
Owner SHENYANG POLYTECHNIC UNIV
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