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Drinking water sterilizing ball based on shell porous structure

A microporous structure and drinking water technology, applied in the fields of chemicals for biological control, sterilization/microdynamic water/sewage treatment, application, etc., can solve the problem of affecting the pH value of drinking water, the specific surface area is not large enough, and the pores are connected Poor properties and other problems, to achieve the effect of enhancing structural stability, reducing specific surface area, and increasing specific surface area

Active Publication Date: 2016-10-26
杭州航民雪贝儿生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] But above-mentioned nano-composite filter material is mainly with seaweed mud, zeolite and activated carbon etc. as main component, has the following disadvantages: 1, because its specific surface area is still not big enough, the contact area with water body is small, and bactericidal efficiency is low; 2, although and These materials have pores inside, which have a certain adsorption capacity for bacteria, but the size distribution of the internal pores is extremely uneven, the large ones are very small, and the small ones are very small. Bacteria cannot be adsorbed, and these channels are all single, and the connectivity between the channels is poor, so the bacteria can still "escape" after being adsorbed, and the adsorption fastness is not ideal
3. After the above materials (especially shell powder) are calcined at high temperature (above 1000°C), some basic metal oxides will be generated (such as calcium oxide after shell powder is calcined at high temperature), which will affect the pH value of drinking water
4. The above-mentioned nano-composite filter material can only be used after being installed in the filter element as a filter material, and cannot be directly dispersed into water for sterilization, so it needs to be used with a matching filter, and the cost is high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A drinking water sterilization ball based on the microporous structure of shells, with a particle size of about 2.5 cm, prepared from the following substances by weight:

[0039] 500 parts of shell powder, 5 parts of silica sol, 90 parts of natural polyether polyol, 130 parts of isocyanate, 0.15 part of triethylenediamine, 5 parts of phenolic resin, 0.15 part of tea saponin, 2 parts of polyethylene glycol 4000, water 4 parts.

[0040] Raw material pre-preparation preparation:

[0041] Preparation of natural polyether polyol: Mix 10 parts of wood powder and 25 parts of lignin and add to 250 parts of phenol, stir and react at 160°C for 70 minutes, gradually add 250 parts of sodium hydroxide with a concentration of 15wt% during the reaction solution, and then use sodium citrate to adjust the reaction solution to neutral, then lower the temperature to 70°C, add 500 parts of furfural and 70 parts of maltitol, and then continue to stir and react for 1.5 hours to obtain natur...

Embodiment 2

[0049] A drinking water sterilization ball based on the microporous structure of shells, with a particle size of about 0.5 cm, prepared from the following substances by weight:

[0050] 400 parts of shell powder, 4 parts of silica sol, 80 parts of natural polyether polyol, 100 parts of isocyanate, 0.1 part of stannous octoate, 4 parts of phenolic resin, 0.1 part of tea saponin, 1 part of polyethylene glycol 4000, 3 parts of water share.

[0051] Raw material pre-preparation preparation:

[0052] Preparation of natural polyether polyol: Mix 10 parts of wood flour and 20 parts of lignin and add to 200 parts of phenol, stir and react at 155°C for 80 minutes, gradually add 200 parts of sodium hydroxide with a concentration of 15wt% during the reaction solution, and then use sodium citrate to adjust the reaction solution to neutrality, then lower the temperature to 65°C, add 400 parts of furfural and 60 parts of xylitol, and continue to stir and react for 2 hours to obtain natural...

Embodiment 3

[0060] A drinking water sterilization ball based on the microporous structure of shells, with a particle size of about 4cm, prepared from the following substances by weight:

[0061] 600 parts of shell powder, 6 parts of silica sol, 100 parts of natural polyether polyol, 160 parts of isocyanate, 0.2 part of dibutyltin dilaurate, 6 parts of phenolic resin, 0.2 part of tea saponin, 3 parts of polyethylene glycol 4000, 5 parts of water.

[0062] Raw material pre-preparation preparation:

[0063] Preparation of natural polyether polyol: Mix 10 parts of wood powder and 30 parts of lignin and add to 300 parts of phenol, stir and react at 165°C for 60 minutes, gradually add 300 parts of sodium hydroxide with a concentration of 15wt% during the reaction solution, and then use sodium citrate to adjust the reaction solution to neutral, then cool down to 75°C, add 600 parts of furfural and 80 parts of sorbitol, and continue to stir and react for 2 hours to obtain natural polyether polyo...

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PUM

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Abstract

The invention relates to the field of water body sterilizing agents and discloses a drinking water sterilizing ball based on shell porous structure, prepared from the following materials according to parts by weight: 400-600 parts of shell powder, 4-6 parts of silicon sol, 80-100 parts of natural polyether polyol, 100-160 parts of isocyanate, 0.1-0.2 part of a catalyst, 4-6 parts of phenoxy resin, 0.1-0.2 part of tea saponin, 1-3 parts of polyethylene glycol, and 3-5 parts of water. The drinking water sterilizing ball may be put directly in drinking water to enable adsorption and sterilization with enduring effect and is convenient to use and low in cost; the drinking water sterilizing ball is made mainly from the shell powder and is safe and harmless to water; the shell powder has large specific surface area and uniform pore size distribution uniformity, ducts are well communicated, and adsorption fastness for germs is high.

Description

technical field [0001] The invention relates to the field of water body bactericides, in particular to a drinking water bactericidal ball based on the shell microporous structure. Background technique [0002] With the improvement of people's living standards, the requirements for drinking water are also getting higher and higher. The current drinking water is generally tap water or bottled water. Although tap water and bottled water have been sterilized, if the early disinfection is not thorough during the long-term transportation and filling process, bacteria will still grow and endanger the human body. healthy. For the sterilization of drinking water, at present, ultraviolet light sterilization devices are generally installed on water dispensers, but the cost of water dispensers with ultraviolet light sterilization devices is relatively high, and the sterilization effect is average, which is not ideal and can only be turned on in a short time Sterilization within a cert...

Claims

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Application Information

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IPC IPC(8): A01N59/06A01N25/34A01N25/10A01P1/00B01J20/04C08G18/48C08J9/08C02F1/50C08G101/00
CPCA01N25/10A01N25/34A01N59/06B01J20/043C02F1/50C08G18/48C08J9/08C08J2203/10
Inventor 高良军何忠陈乐波徐新标
Owner 杭州航民雪贝儿生物科技有限公司