A drinking water sterilization ball based on shell microporous structure

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...

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 these There are pores inside the material, which have a certain adsorption capacity for bacteria, but the size distribution of the internal pores is extremely uneven, the large ones are very large, and the small ones are very small. It can only adsorb some specific small-sized bacteria. For some large-sized bacteria 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