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Comprehensive treatment device and treatment method for acetone wastewater and organic halide wastewater

A technology for comprehensive treatment of organic halogenated substances, which is applied in the field of comprehensive treatment devices for acetone wastewater and organic halogenated wastewater. It can solve the problems of low molecular sieve strength, easy breakage, no industrialized treatment methods, and large regeneration energy consumption, etc., and achieve economic benefits. Significant, good application prospects, large processing effect

Active Publication Date: 2021-01-05
江苏南大华兴环保科技股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this technology has disadvantages such as low adsorption effect, high regeneration energy consumption, and low strength of molecular sieves, which are easily broken.
However, most of the halogenated organic wastewater is still in the laboratory stage, and there is no convenient industrial treatment method.

Method used

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  • Comprehensive treatment device and treatment method for acetone wastewater and organic halide wastewater
  • Comprehensive treatment device and treatment method for acetone wastewater and organic halide wastewater
  • Comprehensive treatment device and treatment method for acetone wastewater and organic halide wastewater

Examples

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Effect test

Embodiment 1

[0050] Comprehensive treatment device and treatment method for acetone wastewater and organic halogenated wastewater

[0051] Such as figure 1 As shown, the steps of treating fungicide wastewater are as follows:

[0052] (1) The phase separation / alkali washing water enters the collection pool 1, adjusts the pH=11.5 in the pH adjustment pool (tank), carries out the alkaline hydrolysis reaction at a constant temperature of 60°C for 3 hours, conducts evaporation and desalination treatment after the alkaline hydrolysis, and collects the condensed water in the workshop Tank, pumped into the sewage station pretreatment collection pool;

[0053] (2) Acetone wastewater enters the collection pool 2, adjusts pH=3.5 in the pH adjustment pool (tank), removes oily substances in the turbid wastewater through the filtration system, and the effluent enters the resin adsorption system, and the effluent is collected and transported to the sewage through pipelines Station pretreatment collecti...

Embodiment 2

[0062] Comprehensive treatment device and treatment method for acetone wastewater and organic halogenated wastewater

[0063] Such as figure 1 Shown, in the present embodiment, the step that fungicide waste water is processed is as follows:

[0064] (1) The phase separation / alkali washing water enters the collection pool 1, adjusts the pH=11.1 in the pH adjustment pool (tank), carries out the alkaline hydrolysis reaction at a constant temperature of 60°C for 3 hours, and conducts evaporation and desalination treatment after the alkaline hydrolysis, and the condensed water enters the workshop for collection Tank, pumped into the sewage station pretreatment collection pool;

[0065] (2) The acetone wastewater enters the collection pool 2, adjusts the pH=3.9 in the pH adjustment pool (tank), removes the oily substances in the turbid wastewater through the filtration system, and the effluent enters the resin adsorption system. After the adsorption effluent is collected, it is tra...

Embodiment 3

[0075] Comprehensive treatment device and treatment method for acetone wastewater and organic halogenated wastewater

[0076] Such as figure 1 Shown, in the present embodiment, the step that fungicide waste water is processed is as follows:

[0077] (1) The phase separation / alkali washing water enters the collection pool 1, adjusts the pH=11.2 in the pH adjustment pool (tank), carries out the alkaline hydrolysis reaction at a constant temperature of 60°C for 3 hours, conducts evaporation and desalination treatment after the alkaline hydrolysis, and collects the condensed water in the workshop Tank, pumped into the sewage station pretreatment collection pool;

[0078] (2) Acetone wastewater enters the collection pool 2, adjusts pH=3.1 in the pH adjustment pool (tank), removes oily substances in the turbid wastewater through the filtration system, and the effluent enters the resin adsorption system, and the effluent is collected and transported to the sewage through pipelines ...

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Abstract

The invention discloses a comprehensive treatment device and treatment method for acetone wastewater and organic halide wastewater. The device comprises a pretreatment device before biochemical treatment, wherein the pretreatment device before biochemical treatment comprises a resin adsorption system for treating wastewater containing acetone substances and an alkaline hydrolysis device for treating wastewater containing organic halides. According to the method, in the pretreatment stage, on one hand, organic bromine is converted into sodium bromide through alkaline hydrolysis to be desalted and removed, and on the other hand, the concentration of ketone biotoxic substances is controlled through resin adsorption. The pretreated effluent is adjusted and then subjected to biochemical treatment, and the biochemical effluent can meet the requirements of a park. The biochemical effluent is subjected to coagulation, sand filtration and catalytic ozonation to meet reuse requirements. The wastewater treatment device and method disclosed by the invention are not only suitable for wastewater generated in the production process of 3, 5-dimethylphenol, but also suitable for other acetone wastewater and organic halide wastewater.

Description

technical field [0001] The invention belongs to the technical field of industrial wastewater treatment, and in particular relates to a comprehensive treatment device and treatment method for acetone wastewater and organic halogenated wastewater. Background technique [0002] 3,5-Dimethylphenol is an important industrial intermediate, mainly used in the production of fungicides, antioxidants, antibiotics, resin adhesives and vitamin E, etc. It is also widely used in various antibacterial and anti-mildew treatment processes , such as antibacterial and antifungal treatment of leather, paper, textiles, etc. The world's demand for 3,5-dimethylphenol is increasing year by year, and the existing production process is to use acetone condensation to produce isophorone, and isophorone catalyzes aromatization to synthesize 3,5-dimethylphenol . Alkaline washing acetone wastewater is produced during the acetone condensation process, and its main components are acetone, mesityl oxide, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F101/30
CPCC02F9/00C02F1/00C02F1/66C02F1/04C02F1/285C02F2301/08C02F1/40C02F1/722C02F2305/026C02F1/5281C02F2001/007C02F1/78C02F1/725C02F2103/001C02F2101/30
Inventor 赵选英戴建军杨峰单昊陈国策
Owner 江苏南大华兴环保科技股份公司
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