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Chlorine dioxide solution for sewage treatment and its preparation method and application

A chlorine dioxide and sewage treatment technology, applied in chlorine dioxide, oxidized water/sewage treatment, water/sludge/sewage treatment, etc.

Active Publication Date: 2022-05-27
东莞绿养世代科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a chlorine dioxide solution for sewage treatment and its preparation method and application for the problem of how to obtain a neutral chlorine dioxide solution and simplify the preparation process.

Method used

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  • Chlorine dioxide solution for sewage treatment and its preparation method and application
  • Chlorine dioxide solution for sewage treatment and its preparation method and application
  • Chlorine dioxide solution for sewage treatment and its preparation method and application

Examples

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preparation example Construction

[0030] like figure 1 As shown, the preparation method of the chlorine dioxide used for sewage treatment of one embodiment, comprises the following steps:

[0031] S1: Mix sodium chlorate and purified water, and stir until the sodium chlorate is completely dissolved to form a sodium chlorate solution.

[0032] Specifically, according to a specific mass ratio, sodium chlorate and purified water are added to the chlorine dioxide generator, and stirred until the sodium chlorate is completely dissolved to form a sodium chlorate solution.

[0033] S2: adding an acid reducing agent to the sodium chlorate solution and reacting at room temperature for 20-30 minutes.

[0034] Specifically, the acid reducing agent is added to the sodium chlorate solution obtained in step S1 according to a certain quality, and reacted at room temperature for 20-30 minutes.

[0035] Wherein, the acid reducing agent includes one or more of citric acid, oxalic acid, formic acid, tartaric acid and glycolic ...

Embodiment 1

[0058] (1) Mix sodium chlorate and purified water, and stir until the sodium chlorate is completely dissolved to form a sodium chlorate solution.

[0059] (2) Add citric acid to the sodium chlorate solution and react at room temperature for 30 minutes.

[0060] (3) Prepare sodium chloride solution and sodium hydroxide solution.

[0061] (4) Continue to add ethanol, and after stirring evenly, continue to add sodium chloride solution and sodium hydroxide solution, and continue to react at room temperature for 5 hours to obtain chlorine dioxide solution. Wherein, the weight percentages of the above-mentioned raw materials are: sodium chlorate 5%; purified water 89.2%; citric acid 3%; ethanol 2%; sodium chloride 0.5%; sodium hydroxide 0.3%.

[0062] The chlorine dioxide solution prepared in Example 1 was tested using an ultraviolet spectrophotometer (TU-1950, Beijing Puyan General Instrument Co., Ltd.), such as figure 2 shown. from figure 2 It can be seen that in the ultravi...

Embodiment 2

[0064] (1) Mix sodium chlorate and purified water, and stir until the sodium chlorate is completely dissolved to form a sodium chlorate solution.

[0065] (2) Add citric acid to the sodium chlorate solution and react at room temperature for 30 minutes.

[0066] (3) Prepare sodium chloride solution and sodium hydroxide solution.

[0067] (4) Continue to add ethanol, and after stirring evenly, continue to add sodium chloride solution and sodium hydroxide solution, and continue to react at room temperature for 5 hours to obtain chlorine dioxide solution. Wherein, the weight percentages of the above-mentioned raw materials are: sodium chlorate 3%; purified water 91.3%; citric acid 3%; ethanol 2%; sodium chloride 0.5%; sodium hydroxide 0.2%.

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Abstract

The invention relates to a chlorine dioxide solution used for sewage treatment and a preparation method and application thereof. The preparation method of the chlorine dioxide solution for sewage treatment comprises the following steps: mixing sodium chlorate and pure water, and stirring until the sodium chlorate is completely dissolved to form a sodium chlorate solution; adding an acid reducing agent To the sodium chlorate solution, react at normal temperature for 20-30 minutes; continue to add catalyst, sodium chloride and alkaline sodium compound, after stirring, continue to react for 4-6 hours at normal temperature to obtain chlorine dioxide solution; wherein, The weight percent content of above-mentioned raw material is: sodium chlorate 0.8%-5%; Acid reducing agent 0.5%-3%; Catalyst 0.3%-2%; Sodium chloride 0.1%-0.5%; 8.7%; purified water 80.8%‑95%. According to the preparation method of the chlorine dioxide solution used for sewage treatment, the obtained chlorine dioxide solution is neutral, and the preparation method has a simple process and is easy to operate.

Description

technical field [0001] The present invention relates to the technical field of chlorine dioxide, in particular to a chlorine dioxide solution used for sewage treatment and a preparation method and application thereof. Background technique [0002] Chlorine dioxide has been recognized at home and abroad as an efficient, widespread, fast and non-toxic disinfectant. At present, chlorine dioxide can be used as the production and sales of disinfectants, preservatives, algaecides and other products, as well as the development, production and sales of pesticides and fungicides, and pharmaceuticals (external use). [0003] Generally, chlorine dioxide solutions are mostly acidic or strongly acidic, and the use of acidic solutions for disinfection and sterilization of human bodies and other organisms will bring about strong corrosion. In addition, the use environment of chlorine dioxide solution is also under further research. SUMMARY OF THE INVENTION [0004] Based on this, it is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B11/02C02F1/76
CPCC01B11/025C02F1/76C02F2303/04
Inventor 周建兰
Owner 东莞绿养世代科技有限公司