A treatment process for pharmaceutical intermediate chemical wastewater

A technology for chemical wastewater and treatment process, applied in natural water treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as pollution, improve adsorption capacity, effective treatment, and simple and efficient treatment methods Effect

Active Publication Date: 2022-03-11
湖北亮绿环保技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can only realize the pretreatment of pharmaceutical intermediate waste water, and still needs further treatment, and cannot realize the thorough treatment to waste water in one step, and, 4-methyl-2-pentanone has certain toxicity, and its in treatment system Residues in the

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A process for treating pharmaceutical intermediate chemical waste water, the specific steps are as follows:

[0028] (1) N-beta-aminoethyl-gamma-aminopropylmethyldimethoxysilane and polyethyleneimine are used as raw materials to prepare a modifier;

[0029] (2) Then take calcium chloride, zinc chloride and yttrium acetylacetonate as raw materials to make metal oxide nanoparticles, then add the metal oxide nanoparticles in 60% p-toluenesulfonic acid aqueous solution, heat, add orthosilicon Acetate ethyl ester and modifier, while stirring, slowly add toluene dropwise to obtain a gel;

[0030] (3) adding the gel and carboxypolystyrene microspheres to the acrylic acid premix, polymerizing, and washing with toluene to obtain the filler;

[0031] (4) Finally, the filler is put into the CASS pool, and the pharmaceutical intermediate chemical wastewater is passed into the CASS pool for aerobic biochemical treatment.

[0032] The specific method of step (1) is as follows: firs...

Embodiment 2

[0046] A process for treating pharmaceutical intermediate chemical waste water, the specific steps are as follows:

[0047] (1) N-beta-aminoethyl-gamma-aminopropylmethyldimethoxysilane and polyethyleneimine are used as raw materials to prepare a modifier;

[0048] (2) Then take calcium chloride, zinc chloride and yttrium acetylacetonate as raw materials to make metal oxide nanoparticles, then add the metal oxide nanoparticles to 65% p-toluenesulfonic acid aqueous solution, heat, add orthosilicon Acetate ethyl ester and modifier, while stirring, slowly add toluene dropwise to obtain a gel;

[0049] (3) adding the gel and carboxypolystyrene microspheres to the acrylic acid premix, polymerizing, and washing with toluene to obtain the filler;

[0050] (4) Finally, the filler is put into the CASS pool, and the pharmaceutical intermediate chemical wastewater is passed into the CASS pool for aerobic biochemical treatment.

[0051] The specific method of step (1) is as follows: firs...

Embodiment 3

[0065] A process for treating pharmaceutical intermediate chemical waste water, the specific steps are as follows:

[0066] (1) N-beta-aminoethyl-gamma-aminopropylmethyldimethoxysilane and polyethyleneimine are used as raw materials to prepare a modifier;

[0067] (2) Then take calcium chloride, zinc chloride and yttrium acetylacetonate as raw materials to make metal oxide nanoparticles, then add the metal oxide nanoparticles to the 62% p-toluenesulfonic acid aqueous solution, heat, add orthosilicon Acetate ethyl ester and modifier, while stirring, slowly add toluene dropwise to obtain a gel;

[0068] (3) adding the gel and carboxypolystyrene microspheres to the acrylic acid premix, polymerizing, and washing with toluene to obtain the filler;

[0069] (4) Finally, the filler is put into the CASS pool, and the pharmaceutical intermediate chemical wastewater is passed into the CASS pool for aerobic biochemical treatment.

[0070] The specific method of step (1) is as follows: ...

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Abstract

The invention provides a process for treating pharmaceutical intermediate chemical waste water. First, N-β-aminoethyl-γ-aminopropylmethyldimethoxysilane and polyethyleneimine are used as raw materials to prepare a modifier; Then use calcium chloride, zinc chloride and yttrium acetylacetonate as raw materials to make metal oxide nanoparticles, and then add the metal oxide nanoparticles to an aqueous solution of p-toluenesulfonic acid with a mass concentration of 60-65%, heat, and add orthosilicic acid Ethyl ester and modifier, slowly add toluene dropwise while stirring to obtain a gel; then add the gel and carboxypolystyrene microspheres to the acrylic acid premix, polymerize, wash with toluene, and obtain the filler; finally put the filler into CASS In the pool, the pharmaceutical intermediate chemical wastewater is passed into the CASS pool for aerobic biochemical treatment. The invention can realize effective treatment of high-concentration pharmaceutical intermediate waste water through simple CASS pool treatment, and the treatment method is simple and efficient.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a process for treating pharmaceutical intermediate chemical wastewater. Background technique [0002] The production of pharmaceutical intermediates belongs to the fine chemical industry. It mainly uses chemical reactions to make organic substances and inorganic substances into synthetic drugs and pharmaceutical intermediates. There are many reaction steps in the production process, and a variety of chemical raw materials are used. The utilization rate of raw materials is low. The product yield is low and the loss is serious. Therefore, pharmaceutical intermediate chemical wastewater often contains many toxic and harmful chemical substances, such as heterocyclic compounds, aromatic compounds, waste acids and bases, inorganic salts, alcohols, chloroform, petroleum ether, ethyl acetate, acetone and other organic substances. solvent etc. [0003] Pharmaceu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/12C02F3/10B01J20/26B01J20/30C02F103/34
CPCC02F3/1236C02F3/108B01J20/261B01J20/06B01J20/041B01J20/265C02F2103/343Y02W10/10
Inventor 谭乔
Owner 湖北亮绿环保技术有限公司
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