System and method for advanced treatment of wastewater containing high-concentration organic amines

An advanced treatment, organic amine technology, applied in water/sewage treatment, chemical instruments and methods, oxidized water/sewage treatment, etc., can solve problems such as inapplicability, and achieve the effects of improving utilization, preventing damage, and simple regeneration

Pending Publication Date: 2020-01-10
LUXI CHEM GRP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, heterogeneous catalysts have a better catalytic oxidation decomposition effect on trace organic matter, and are not suitable for wastewater treatment with higher organic matter content.

Method used

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  • System and method for advanced treatment of wastewater containing high-concentration organic amines

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Experimental program
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Effect test

Embodiment 1

[0038] 10L of organic amine industrial wastewater is transported from waste water storage tank 1 to ozone compound oxidation pool 3 through pipelines, and 6g of compound oxidants (3g hydrogen peroxide, 3g sodium hypochlorite) are transported from compound oxidizer storage tank 2 to ozone compound oxidation pool 3 through pipelines, and ozone compound The pH of the solution in the oxidation tank 3 is adjusted to 2 with formic acid, the reaction temperature is 45°C, the wastewater solution is reacted in the ozone composite oxidation tank 3 for 60 minutes, the dosage of ozone is 120g / h, and then transported to the heterogeneous catalytic oxidation reactor through the pipeline 4 top inlet, modified molecular sieve (100g) is used as the carrier in the heterogeneous catalytic oxidation reactor 4, and the flow rate is 3L / h, and the waste water solution is transported to the sedimentation tank 5 from the bottom outlet of the heterogeneous catalytic oxidation reactor 4 through pipelines,...

Embodiment 2

[0040] 15L of methylamine industrial wastewater is transported from waste water storage tank 1 to ozone compound oxidation pool 3 through pipelines, and 10g of compound oxidants (4g of chlorine dioxide, 6g of sodium perchlorate) is transported from compound oxidizer storage tank 2 to ozone compound oxidation pool 3 through pipelines , the pH of the solution in the ozone composite oxidation tank 3 was adjusted to 3 with acetic acid, the reaction temperature was 55°C, the wastewater solution was reacted in the ozone composite oxidation tank 3 for 45min, and the dosage of ozone was 150g / h, and then transported to the heterogeneous catalyst via pipeline Oxidation reactor 4 top inlet, modified molecular sieve (100g) is used as carrier in heterogeneous catalytic oxidation reactor 4, flow rate is 4L / h, waste water solution is transported to sedimentation tank from the bottom outlet of heterogeneous catalytic oxidation reactor 4 through pipeline 5. Wastewater enters the biochemical sys...

Embodiment 3

[0042]20L methylamine industrial wastewater is transported from waste water storage tank 1 to ozone composite oxidation pool 3 through pipelines, and 15g composite oxidant (6g hydrogen peroxide, 9g sodium chlorate) is transported from composite oxidation storage tank 2 to ozone composite oxidation pool 3 through pipelines, The pH of the solution in the ozone composite oxidation tank 3 is adjusted to 4 with hydrochloric acid, the reaction temperature is 65°C, the wastewater solution is reacted in the ozone composite oxidation tank 3 for 50 minutes, and the dosage of ozone is 170g / h, and then transported to the heterogeneous catalytic oxidation through the pipeline Reactor 4 top inlet, modified molecular sieve (100g) is used as carrier in heterogeneous catalytic oxidation reactor 4, flow rate is 3.5L / h, waste water solution is transported to sedimentation tank through pipeline from the bottom outlet of heterogeneous catalytic oxidation reactor 4 5. Waste water is treated with pre...

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Abstract

The invention provides a system and a method for advanced treatment of wastewater containing high-concentration organic amines. According to the system, an ozone composite oxidation tank, a heterogeneous catalytic oxidation reactor and a sedimentation tank are provided, can effectively decolorize organic amine wastewater and improve the biodegradability of the organic amine wastewater, and providea reliable treatment mode for industrial production; wherein a pipeline containing the organic amine wastewater is used for feeding the organic amine wastewater into the ozone composite oxidation tank; under the conditions of certain pH, temperature and time, wastewater treated after ozone composite oxidation and decoloration is conveyed into the heterogeneous catalytic oxidation reactor througha pipeline; and further, reaction of the organic amine wastewater with a residual oxidant in ozone oxidation in the heterogeneous catalytic oxidation reactor is carried out, so that residual organic matters are catalytically degraded under the action of a catalyst, the degraded wastewater is introduced into a sedimentation tank to be precipitated, and the precipitated wastewater is discharged intoa biochemical treatment system.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and relates to an advanced treatment technology for organic amine wastewater, in particular to an advanced treatment technology for methylamine production wastewater. Background technique [0002] Methylamine is a lower aliphatic amine produced by replacing the hydrogen of ammonia molecule with methyl. Industrial production generally uses methanol and ammonia as raw materials for synthesis. The composition of organic amine wastewater is complex. During the catalyst synthesis process, some nitrogen-containing heterocyclic organic compounds will inevitably be produced, such as: pyrrole, pyridine, thiophene, aniline, etc. Although the content of these by-products is very small, these organic substances are toxic and harmful, biodegradable substances, and have chromophores, which makes the overall wastewater show the characteristics of high total nitrogen content, low ammonia / nitrogen ratio, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F101/38
CPCC02F9/00C02F1/281C02F1/78C02F2001/007C02F1/725C02F2101/38
Inventor 刘丽丽胡大春张照飞刘晓臻
Owner LUXI CHEM GRP
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