Method for utilizing singlet oxygen for removing algae

A technology of singlet oxygen and algae water, which is applied in chemical instruments and methods, oxidized water/sewage treatment, special compound water treatment, etc., can solve the problems of not achieving the desired effect, achieve moderate price, stable chemical properties, Simple and easy to operate effect

Active Publication Date: 2016-03-23
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, existing singlet oxygen ( 1 o 2 ) The technology of algae treatment can not r

Method used

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  • Method for utilizing singlet oxygen for removing algae
  • Method for utilizing singlet oxygen for removing algae

Examples

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Example Embodiment

[0020] Specific embodiment 1: This embodiment is a method of using singlet oxygen to remove algae. It is realized by the following steps: the catalyst and the oxidant are mixed in a molar ratio of 1: (1-10), and then added to the treatment. In the water, the concentration of peroxide in the algae-containing water to be treated is controlled to be 1 to 500 mg / L, and the treatment is performed under the condition that the residence time of the hydraulic reaction is 10 to 60 min and the condition is agitated to complete the algae removal with singlet oxygen; , The catalyst is pyruvic acid, and the oxidant is peroxide.

[0021] The principle of a method of removing algae using singlet oxygen in this embodiment is as follows: First, pyruvic acid catalyzes peroxide (peroxymonosulfate or percarbonate) to produce a diepoxy intermediate; The body further reacts with peroxide to produce singlet oxygen ( 1 O 2 ) And pyruvic acid, and at the same time the double epoxy intermediate will also ...

Example Embodiment

[0023] Specific embodiment two: this embodiment is different from specific embodiment one in that the peroxide is a mixture of one or more of peroxymonosulfate and percarbonate mixed in any ratio. Others are the same as the first embodiment.

Example Embodiment

[0024] Specific embodiment three: this embodiment is different from specific embodiment one in that the peroxide is peroxymonosulfate and sodium persulfate (NaHSO 5 ), potassium persulfate (KHSO 5 ), ammonium persulfate (NH 4 HSO 5 ), calcium persulfate (Ca(HSO 5 ) 2 ), magnesium persulfate (Mg(HSO 5 ) 2 ) Is a mixture of one or more of them in any ratio. Others are the same as the first embodiment.

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Abstract

The invention provides a method for utilizing singlet oxygen for removing algae and relates to an algae removal method. According to the algae removal method, a catalyst pyruvic acid and an oxidizing agent peroxide such as monosulfate and percarbonate are added into water containing algae, and stirred, and react to complete algae removal. Pyruvic acid catalyzes the peroxide to generate a double-resin intermediate, the double-resin intermediate reacts with the peroxide to generate singlet oxygen and pyruvic acid, generated pyruvic acid continues to catalyze the peroxide, and has a circular catalytic effect in the reaction process, and the generated high-activity singlet oxygen acts on the algae fast, kills algae cells, enables the algae to be inactivated, and achieves the purpose of algae removal. The algae removal method has the advantages that algae removal efficiency is high, generation of poisonous and harmful products is avoided, the catalyst pyruvic acid and the oxidizing agent peroxide are environmentally friendly, safe and free of toxic and side effects, can be applied on a large scale and are more suitable for emergency treatment of algae outbreak, and the reaction is affected little by the water body condition.

Description

technical field [0001] The invention relates to a method for removing algae, in particular to a method for using singlet oxygen to remove algae. Background technique [0002] In recent years, the algal blooms caused by the eutrophication of rivers, lakes and seas have attracted widespread attention from all walks of life. The flooding of algae not only affects the water landscape and normal production of aquaculture, but also poses a threat to the living environment of human beings. [0003] Algae and its by-products have brought many adverse effects to the traditional water purification process: (1) causing the deterioration of water quality and causing disgusting smell and taste in drinking water; (2) the death of algae sinking to the bottom to form humus, increasing the water (3) Algae and its soluble metabolites are the precursors of chlorination disinfection by-products; (4) The turbidity formed by algae has high stability, small specific gravity, and is difficult to re...

Claims

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Application Information

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IPC IPC(8): C02F1/72
CPCC02F1/722C02F1/725C02F2305/02
Inventor 江进高源周扬李娟庞素艳
Owner HARBIN INST OF TECH
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