Chemical synthesis pharmaceutical wastewater treatment system and treatment method

A wastewater treatment system and pharmaceutical wastewater technology, which is applied in chemical instruments and methods, special compound water treatment, natural water treatment, etc., can solve problems such as poor biodegradability, complex components, and difficult treatment

Active Publication Date: 2021-02-23
华夏碧水环保科技有限公司北京分公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the defects of complex components, poor biodegradability and difficult treatment of chemically synthesized pharmaceutical wastewater in the prior...

Method used

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  • Chemical synthesis pharmaceutical wastewater treatment system and treatment method
  • Chemical synthesis pharmaceutical wastewater treatment system and treatment method
  • Chemical synthesis pharmaceutical wastewater treatment system and treatment method

Examples

Experimental program
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Effect test

preparation example 1

[0051] Preparation Example 1 Use petroleum ether as the continuous phase and Tween 60: Span 40 = 1:1 as the compound emulsifier to prepare the oil phase. According to the mass ratio of acrylamide (AM): dimethylhexadecyl (2-methyl Acrylamidopropyl) ammonium bromide (AM16):fumaric acid (FA)=60:5:10 disperses the monomer in water, the total mass concentration of the monomer is controlled at 40wt%, and the aqueous phase is prepared.

[0052] Under the condition of stirring and nitrogen, slowly add the water phase into the oil phase, the volume ratio of the oil phase and the water phase is 1.7:1, raise the temperature to 50°C, and then add 0.7wt% of the total mass of the monomers Sodium bisulfate and peroxide According to the aqueous solution of the composite initiator of ammonium sulfate with a mass ratio of 1:2, heat preservation and react for 6h, cool to room temperature and discharge to obtain a solution of the copolymer, break the emulsion with ethanol, and wash with a solvent ...

preparation example 2

[0055] Other conditions and steps are the same as in Preparation Example 1, except that dimethyltetradecyl (2-methacrylamidopropyl) ammonium bromide (AM14) is used to replace dimethylhexadecyl (2-methyl Acrylamidopropyl) Ammonium Bromide (AM16).

preparation example 3

[0057] Other conditions and steps are the same as in Preparation Example 1, except that dimethyloctadecyl (2-methacrylamidopropyl) ammonium bromide (AM18) is used to replace dimethylhexadecyl (2-methyl Acrylamidopropyl) Ammonium Bromide (AM16).

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Abstract

The invention relates to a chemical synthesis pharmaceutical wastewater treatment system and treatment method, the treatment system comprises a pretreatment module and a biochemical treatment module,the pretreatment module comprises a high -salinity production wastewater pretreatment unit, a high- concentration production wastewater pretreatment unit and a low concentration production wastewaterpretreatment unit; the high-salinity production wastewater pretreatment unit sequentially comprises a first coagulation tank and an MVR evaporation tank; the high-concentration production wastewater pretreatment unit sequentially comprises an oil separation sedimentation tank, a second coagulation tank and an iron-carbon micro-electrolysis tank; and a coagulant of the second coagulating tank comprises polyacrylamide, an amphoteric acrylamide copolymer and an inorganic flocculant, and the amphoteric acrylamide copolymer is obtained by copolymerization of acrylamide, hydrophobic cation modifiedacrylamide and fumaric acid. According to the method, the high-concentration production wastewater is subjected to a pretreatment mode of combined use of coagulation and iron-carbon micro-electrolysis, so that the biodegradability of the high-concentration production wastewater is remarkably improved, and subsequent biochemical treatment is facilitated.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a treatment system and method for chemically synthesized pharmaceutical wastewater. Background technique [0002] The pharmaceutical industry is one of the ten key industries for the special rectification of the Water Pollution Prevention and Control Action Plan (referred to as "Water Ten Measures"). The production process of chemical synthesis drugs has many steps, long cycles, and many types of raw and auxiliary materials. The final product only accounts for the total amount of raw materials. A large amount of unreacted raw materials and solvents enter the wastewater. Chemical synthesis pharmaceutical wastewater has complex wastewater components, high COD content, poor biodegradability, and wastewater contains cyanide, phenol, aromatic amines, and nitrogen. Heterocyclic and polycyclic aromatic hydrocarbons and other substances that are difficult to degrade ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/16C02F101/30C02F103/34
CPCC02F1/001C02F1/04C02F1/24C02F1/40C02F1/461C02F1/5245C02F1/56C02F1/722C02F1/725C02F3/30C02F3/34C02F9/00C02F2101/16C02F2101/30C02F2103/343C02F2305/026
Inventor 张传兵郭丽娟赵曙光王慧芳徐亚慧王杰肖一帆侯亚平徐漫漫周东博孙方王建兴刘洪涛申志华
Owner 华夏碧水环保科技有限公司北京分公司
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