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Cephalosporin antibiotic production wastewater treatment system and process

A wastewater treatment system and wastewater production technology, applied in the direction of biological water/sewage treatment, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of reducing the COD index of wastewater, reduce the load of subsequent equipment, and improve the reliability of wastewater biochemical effects

Pending Publication Date: 2022-03-29
华夏碧水环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In order to improve the defects of the prior art, the present invention provides a wastewater treatment system for the production of cephalosporin antibiotics, which preferably replaces the MVR evaporation pool with a Fenton catalytic oxidation system in the pretreatment link, so that it can be effectively degraded in the pretreatment link Antibiotic residues and organic matter in wastewater can reduce the COD index of wastewater and effectively alleviate the problem of easy blockage of equipment in the subsequent biochemical treatment process

Method used

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  • Cephalosporin antibiotic production wastewater treatment system and process
  • Cephalosporin antibiotic production wastewater treatment system and process
  • Cephalosporin antibiotic production wastewater treatment system and process

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preparation example Construction

[0049] Preparation of composite flocculant

[0050] The composite flocculant used in the embodiment of the present invention is obtained by compounding carbon powder, iron powder, aluminum chloride, and polyaluminum chloride according to a mass ratio of 2:3:8:1. 0.2%.

[0051] Setup of iron-carbon micro-electrolytic cell

[0052] In the embodiment of the present invention, the iron-carbon micro-electrolytic cell is set as follows: in the iron-carbon micro-electrolytic cell I, the mass ratio of fillers to iron filings and coke is 3:2, and the pH is 3; in the iron-carbon micro-electrolytic cell II, the fillers are iron filings, The mass ratio of copper particles and coke is 3:0.5:2, and the pH is 4.

[0053] Preparation of coagulation sedimentation agent

[0054] The coagulation-sedimentation agent used in the embodiment of the present invention is obtained by compounding polyaluminum chloride and calcium oxide at a ratio of 4:1, and the addition amount of the coagulati...

Embodiment 1

[0063] The pretreatment process of pharmaceutical production wastewater is: production wastewater - mechanical fine grid - high concentration adjustment tank - oil separation sedimentation tank - air flotation sedimentation tank - iron carbon micro electrolysis tank - MVR evaporation tank.

[0064] S1: The production wastewater is firstly filtered through mechanical fine grids, and the effluent flows into the high-concentration adjustment tank for homogeneous and even quantity adjustment;

[0065] S2: The effluent from the high-concentration adjustment tank enters the oil separation sedimentation tank to treat the organic solvent in the wastewater, and the effluent enters the air flotation sedimentation tank, and adds a composite flocculant to the air flotation sedimentation tank to remove suspended matter;

[0066] S3: The effluent from the air flotation sedimentation tank enters the iron-carbon micro-electrolysis cell to oxidize the chromophoric groups in the wastewater, and ...

Embodiment 2

[0069] The pretreatment process of pharmaceutical production wastewater is as follows: production wastewater—mechanical fine grid—high concentration adjustment tank—grease separation sedimentation tank—air flotation sedimentation tank—iron-carbon micro electrolytic cell—Fenton catalytic oxidation system.

[0070] S1: The production wastewater is firstly filtered through mechanical fine grids, and the effluent flows into the high-concentration adjustment tank for homogeneous and even quantity adjustment;

[0071] S2: The effluent from the high-concentration adjustment tank enters the oil separation sedimentation tank to treat the organic solvent in the wastewater, and the effluent enters the air flotation sedimentation tank, and adds a composite flocculant to the air flotation sedimentation tank to remove suspended matter;

[0072] S3: The effluent from the air flotation sedimentation tank enters the iron-carbon micro-electrolysis cell to oxidize the chromophoric groups in the w...

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Abstract

The invention discloses a cephalosporin antibiotic production wastewater treatment system and process, according to the characteristics of high COD (chemical oxygen demand) and antibiotic residues, complex components and the like in antibiotic production wastewater, a conventional MVR (mechanical vapor recompression) evaporation pond is replaced by a Fenton catalytic oxidation system in a pretreatment stage, and organic substances in the wastewater are degraded; the problem that subsequent purification equipment is easy to block and corrode is effectively solved. In addition, the wastewater treatment system further comprises a Fenton-like reaction system, a Fenton-like reagent is prepared according to sewage treatment of the secondary sedimentation tank and an original aeration system in a plant, and suspended solids and the like in the wastewater are further subjected to deep treatment.

Description

technical field [0001] The invention belongs to the sewage treatment industry in the technical field of environmental protection, and specifically relates to a wastewater treatment system and a treatment process for producing cephalosporin antibiotics. Background technique [0002] With the continuous development of modern pharmaceutical technology, the discharge of pharmaceutical wastewater has become more and more prominent. Among them, antibiotic production wastewater is a type of organic wastewater with high concentration and biological toxicity. Due to its high COD content, complex composition, and various organic compounds that are difficult to biochemically treat and degrade, the B / C value is generally 0.02- 0.1, poor biodegradability. Countries such as Europe and the United States have begun to treat the waste water produced when penicillin was produced in the 1940s, but have not been able to have a good solution. Since the 1970s, developed countries shifted the pr...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F103/34C02F101/30C02F101/16
CPCC02F9/00C02F2103/343C02F1/001C02F1/40C02F1/24C02F1/56C02F1/5236C02F1/46104C02F1/722C02F1/725C02F2305/026C02F1/04C02F2101/30C02F3/30C02F2301/08C02F1/441C02F2101/16C02F3/2846Y02W10/10
Inventor 郭倩倩张传兵刘宁宇李玉东赖明建张震申志华朱连翔刘正应邵建彬
Owner 华夏碧水环保科技股份有限公司
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