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A water treatment method for decontamination by catalyzing peroxide to generate singlet oxygen

A technology of peroxide and singlet oxygen, which is applied in the field of water treatment, achieves the effect of moderate price, no toxic side effects, and enhanced electron-absorbing ability

Active Publication Date: 2018-01-05
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the existing water treatment is not able to complete the treatment of sewage well.

Method used

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  • A water treatment method for decontamination by catalyzing peroxide to generate singlet oxygen
  • A water treatment method for decontamination by catalyzing peroxide to generate singlet oxygen
  • A water treatment method for decontamination by catalyzing peroxide to generate singlet oxygen

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specific Embodiment approach 1

[0020] Embodiment 1: This embodiment is a water treatment method that catalyzes peroxide to generate singlet oxygen to remove pollution, and it is realized through the following steps:

[0021] After mixing the catalyst and the oxidant according to the molar ratio of 1:(1~10), add it into the water to be treated, control the concentration of peroxide in the water to be treated at 0.3~300mg / L, and the residence time in the hydraulic reaction is 5-60 minutes, under the condition of stirring, carry out water treatment, that is to complete the water treatment of catalyzing peroxide to generate singlet oxygen; wherein, the catalyst is pyruvic acid, and the oxidant is peroxide.

[0022] The principle of a water treatment method for catalyzing peroxide to generate singlet oxygen and decontamination of the present embodiment is as follows: first, pyruvic acid catalyzes peroxide (peroxymonosulfate or percarbonate) to produce a diepoxide intermediate; Then, the diepoxy intermediate furt...

specific Embodiment approach 2

[0024] Embodiment 2: This embodiment differs from Embodiment 1 in that: the water to be treated is source water, sewage or secondary effluent from a sewage plant. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0025] Embodiment 3: The difference between this embodiment and Embodiment 1 is that the peroxide is a mixture of one or more of persulfate and percarbonate in any ratio. Others are the same as in the first embodiment.

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Abstract

The invention relates to a water treatment method for decontamination by catalyzing peroxide to generate singlet oxygen, which relates to a water treatment method. The invention provides a water treatment method for generating singlet oxygen by catalyzing peroxide to remove pollution. The water treatment method of the present invention: add the catalyst pyruvic acid and the oxidizing agent peroxide (peroxymonosulfate, percarbonate) into the water to be treated, and stir. In the water treatment method of the present invention, pyruvic acid catalyzes the peroxide to produce a double epoxy intermediate, and the double epoxy intermediate further reacts with the peroxide to produce singlet oxygen and pyruvic acid, and the generated pyruvic acid continues to catalyze the peroxide, and in the reaction It plays the role of cyclic catalysis, and the generated highly active singlet oxygen degrades organic matter to achieve the purpose of decontamination. The invention has high pollution removal efficiency, does not produce toxic and harmful by-products, the catalyst pyruvic acid and the oxidant peroxide are green, safe, and has no toxic and side effects, the reaction is less affected by water conditions, can be applied on a large scale, and is more suitable for emergency treatment.

Description

technical field [0001] The invention relates to a water treatment method, in particular to a water treatment method for decontamination by catalyzing peroxide to generate singlet oxygen. Background technique [0002] singlet oxygen ( 1 o 2 ) is a molecular oxygen in excited state, and superoxide radical (O 2 -· ), hydroxyl radical (OH), sulfate radical (SO 4 ·- ) and other reactive oxygen species, chemical properties are lively and unstable, and widely exist in nature. It is one of the longest active oxygen species involved in the fields of chemistry, environment, and medicine. After oxidation, no toxic and harmful by-products are produced, and it is a green and environment-friendly oxidant. [0003] But the existing water treatment is not able to complete the treatment of sewage well. Contents of the invention [0004] The purpose of the present invention is to provide a water treatment method that catalyzes peroxide to generate singlet oxygen and removes pollution...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/72
Inventor 庞素艳袁立鹏江进杨悦
Owner HARBIN UNIV OF SCI & TECH
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