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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 reach the desired effect, and there is an urgent need for an effective method for removing algae

Method used

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

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specific Embodiment approach 1

[0020] Specific embodiment 1: This embodiment is a method of using singlet oxygen to remove algae, which is realized through the following steps: After mixing the catalyst and the oxidant according to the molar ratio of 1: (1-10), add it to the to-be-treated In the water, control the concentration of peroxide in the algae-containing water to be treated to 1-500mg / L, and carry out the treatment under the conditions of the hydraulic reaction residence time of 10-60min and stirring state, that is, to complete the algae removal by singlet oxygen; , the catalyst is pyruvic acid, and the oxidizing agent is peroxide.

[0021] The principle of a method for removing algae using singlet oxygen in this embodiment is as follows: first, pyruvic acid catalyzes peroxide (peroxymonosulfate or percarbonate) to produce a diepoxy intermediate; then, the diepoxide intermediate The body further reacts with peroxide to produce singlet oxygen ( 1 o 2 ) and pyruvic acid, while the diepoxy intermedi...

specific Embodiment approach 2

[0023] Embodiment 2: 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.

specific Embodiment approach 3

[0024] Specific embodiment three: the difference between this embodiment and specific embodiment one is: the peroxide is persulfate 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 ) in one or several mixtures in any ratio. Others are the same as in 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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