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Technique for realizing zero discharge of 7-ACA production waste water

A 7-ACA, waste water production technology, applied in the direction of water pollutants, multi-stage water treatment, water/sewage treatment, etc., to achieve obvious environmental benefits, save water resources, and achieve the effect of environmental protection

Inactive Publication Date: 2018-05-15
石药集团内蒙古中诺药业有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, there is no relevant report on the zero discharge of 7-ACA production wastewater

Method used

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  • Technique for realizing zero discharge of 7-ACA production waste water
  • Technique for realizing zero discharge of 7-ACA production waste water
  • Technique for realizing zero discharge of 7-ACA production waste water

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Embodiment Construction

[0020] In order to make the objectives, technical solutions and advantages of the present invention more clear, the technical solutions in the embodiments will be fully described below in conjunction with the embodiments of the present invention and the accompanying drawings. It should be noted that the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. The present invention will be described in more detail below through specific examples.

[0021] (1) ultrafiltration

[0022] The filter cloth washing water is treated with ultrafiltration, the operating pressure is 0.12MPa, the operating temperature is 26°C, and the recovery rate is 85%. The ultrafiltration dialysate is treated by reverse osmosis, and the ultrafiltrat...

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Abstract

The invention discloses a technique for realizing zero discharge of 7-ACA production waste water. 7-ACA production waste water comprises filter cloth filtering water, waste water from resin treatment,membrane cleaning water and waste water generated by recycling isopropanol and acetone. According to the property of the waste water, the 7-ACA production waste water by one-step enzymic method is classified; the waste water is disposed by ultrafiltration, nanofiltration, reverse osmosis, and disk tube type reverse osmosis membrane technology; the high-concentration waste water is disposed by multi-effect evaporation; finally, the zero discharge of the -ACA production waste water is realized.

Description

technical field [0001] The invention relates to a process for zero discharge of production wastewater, in particular to a process for realizing zero discharge of 7-ACA production wastewater, and belongs to the technical field of pharmaceutical wastewater treatment. Background technique [0002] 7-Aminocephalosporanic acid (7-ACA) is the most important intermediate in the synthesis of cephalosporin antibiotics, and is generally prepared from cephalosporin C by chemical or enzymatic cleavage to remove side chain molecules. Due to the complex process and serious pollution of the chemical method, this method has been replaced by the enzymatic process which is easy to operate and environmentally friendly. The production of 7-ACA by biological enzymatic method can be divided into two-step enzymatic method and one-step enzymatic method. The two-step enzymatic method is that cephalosporin C generates a ketone intermediate under the action of D-amino acid oxidase, which is decarboxy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F101/38C02F103/34C02F101/34
CPCC02F1/04C02F1/38C02F1/441C02F1/442C02F1/444C02F9/00C02F2101/34C02F2101/38C02F2103/343C02F2301/08
Inventor 刘钊郭建明郭军臣陈顺记韩贺东张鸿宾周颖
Owner 石药集团内蒙古中诺药业有限公司
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