A polyacrylamide water purifying agent, its preparation method, its storage method and its use method

A polyacrylamide and storage method technology, applied in the direction of flocculation/sedimentation water/sewage treatment, sedimentation treatment, etc., can solve the problems that polyacrylamide is not easy to dissolve, reduce the shelf life of water purifiers, and greatly affect the efficiency of water purification, etc., to achieve Improve dispersion efficiency and dissolution efficiency, reduce water pollution, and reduce the effect of dissociation

Active Publication Date: 2022-04-29
龙岩绿合环保有限公司
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Problems solved by technology

[0006] Although the above-mentioned polyacrylamide water purifiers have a more excellent purification function, the main body of the above polyacrylamide water purifiers is still polyacrylamide, which is easy to absorb moisture during storage, which not only reduces the shelf life of the water purifiers , and after moisture absorption and agglomeration, polyacrylamide agglomeration is not easy to dissolve, which has a great impact on water purification efficiency

Method used

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  • A polyacrylamide water purifying agent, its preparation method, its storage method and its use method
  • A polyacrylamide water purifying agent, its preparation method, its storage method and its use method
  • A polyacrylamide water purifying agent, its preparation method, its storage method and its use method

Examples

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Embodiment 1

[0043] Example 1: Reference figure 1 , a polyacrylamide water purifying agent, comprising a polyacrylamide inner core 1 and a moisture-proof layer 2 wrapped outside the polyacrylamide inner core 1 . The moisture-proof layer 2 is a solid of sodium thiosulfate containing a drying gas 3 inside. In this embodiment, the drying gas 3 is nitrogen. The preparation method of polyacrylamide water purifying agent comprises the following steps:

[0044]Step 1: Put sodium thiosulfate in an autoclave at 50°C, fill the autoclave with dry gas 3, and control the pressure in the autoclave to 15Mpa for 10 minutes.

[0045] Step 2: Spray powdered polyacrylamide core 1 into the autoclave, the weight ratio of polyacrylamide core 1 to sodium thiosulfate solid is 1:2, keep the pressure in the autoclave at 8Mpa, and heat at 50°C Keep at temperature for 3 minutes. Wherein, the polyacrylamide core 1 is powdery polyacrylamide.

[0046] Step 3, cool to room temperature (24.6°C), and release to normal ...

Embodiment 2

[0050] Embodiment 2: A polyacrylamide water purifying agent, the difference from Embodiment 1 is that the drying gas 3 in this embodiment is carbon dioxide.

Embodiment 3

[0051] Example 3: A polyacrylamide water purifier, the difference from Example 1 is that the dry gas 3 in this example is nitrogen and carbon dioxide, and the volume ratio of nitrogen and carbon dioxide is 1:1.

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Abstract

The invention discloses a polyacrylamide water purifier, a preparation method, a storage method and a use method thereof, and relates to the field of water purifiers. Its technical points are: a polyacrylamide water purifying agent, comprising a polyacrylamide core and a moisture-proof layer coated on the outside of the polyacrylamide core. The deliquescence of the polyacrylamide core improves the shelf life of the water purifier and ensures the purification efficiency of polyacrylamide.

Description

technical field [0001] The present invention relates to the field of water purifying agents, more particularly, to a polyacrylamide water purifying agent and its preparation method, its storage method and its use method. Background technique [0002] A water purifier is a chemical that can react with other impurities in the water when it is put into the water, mainly for the purpose of water purification. The existing commonly used water purifiers include polyaluminum chloride, polyaluminum ferric chloride, basic aluminum chloride, polyacrylamide, ferrous sulfate, aluminum sulfate, polyferric sulfate and the like. Among them, because the main chain of polyacrylamide has a large number of amide groups, it has high chemical activity and can be modified to produce many derivatives of polyacrylamide. Therefore, polyacrylamide is widely used in the wastewater treatment industry, and people continue to Improve the water purification efficiency of polyacrylamide. [0003] For exa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/56
CPCC02F1/56C02F2001/007
Inventor 邱艺梅蓝子栋谢秀杨李柳兵陈铁彪陈财祥
Owner 龙岩绿合环保有限公司
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