PM2.5 pollutant adsorption sand with indoor humidifying function as well as application thereof

A pollutant, functional technology for climate change adaptation, other chemical processes, dispersed particle filtration, etc.

Inactive Publication Date: 2014-03-19
尹无忌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Although the above treatment methods have certain effects, except for the plant absorption method, their common features are high cost or high energy consumption, and are prone to produce new chemical pollution and Radiation pollution, and it is difficult to naturally adjust the humidity and purify indoors, so that indoor environmental pollution has been difficult to solve universally and effectively, and has become a major health problem, and even become the second largest livelihood issue after "food safety".

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Activated clay powder modified by polyaluminum chloride (bentonite is commonly called activated clay after dedandrification purification and acid treatment), its montmorillonite content is 95wt%, and the high-absorbent resin uses vinyl alcohol- Acrylate block copolymer granular powder, mix modified bentonite and high-absorbent resin at a mass ratio of 100:2, spray a small amount of atomized water to adjust the humidity of the mixed powder, and use a roller extrusion molding machine to shape it into a diameter of 3mm Cut the material rod into 5~10mm long particles, and it is ready.

[0025] Put the above-mentioned adsorption sand in a non-woven bag and place it indoors to absorb pollutants, and effectively remove indoor odors within 2 hours, making people feel fresh air, eliminating indoor condensation in rainy days, and detecting indoor PM2.5 Pollutants <10 micrograms per cubic meter.

[0026] Take the above-mentioned adsorption sand and immerse it in 1wt% polyvinyl al...

Embodiment 2

[0028] Sodiumized semi-hydrophobic organic bentonite powder is selected, the content of montmorillonite is 92wt%, and the superabsorbent resin is selected from superabsorbent resin starch grafted propylene salt powder (water absorption capacity 800~1200 times) and superabsorbent resin styrene-divinylbenzene Cross-linked copolymer granular solid water slurry, according to the mass ratio of bentonite: superabsorbent resin: superabsorbent resin = 100:4:0.8, and alternatively select alkyl silicone oil accounting for 0.01% of the total mass of bentonite and superabsorbent resin as an auxiliary component, Mix the components, atomize and spray a small amount of water, adjust the humidity of the mixed powder, use a roller extrusion molding machine to form a rod with a diameter of 3 mm, and cut the rod into particles with a length of 5 to 10 mm.

[0029] Get the adsorption sand that embodiment 2 makes and wrap with non-woven fabric, burlap respectively, divide and place in the undergrou...

Embodiment 3

[0032] Sodium long-chain quaternary ammonium salt cation-modified bentonite powder is selected, and the content of montmorillonite is 95%. The high-absorbent resin adopts super-absorbent resin cellulose grafted propylene salt powder (water absorption capacity 1400~2000 times) and super-absorbent resin styrene- Butadiene cross-linked copolymer granular solid water slurry, according to the mass ratio of bentonite: super absorbent resin: super absorbent resin = 100: 1: 8, and additionally select emulsified alkanes accounting for 0.02% of the total mass of bentonite, super absorbent resin and super absorbent resin The base silicone oil is used as an auxiliary component of the interface-modified binder. The components are mixed and formed into rods with a diameter of 3 mm by a roller extrusion molding machine, and the rods are cut into particles with a length of 5 to 10 mm.

[0033] The adsorption sand prepared in Example 3 was wrapped with non-woven fabric and placed in grids of th...

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Abstract

The invention discloses PM2.5 pollutant adsorption sand with an indoor humidifying function as well as an application thereof. The PM2.5 pollutant adsorption sand with the indoor humidifying function is composed of main components and auxiliary components, wherein the main components consist of modified bentonite and high-absorption resin, wherein the mass ratio of modified bentonite to high-absorption resin is 100: (0.8-20); the auxiliary components are substances which do not affect the adsorption and absorption functions of the main components in air; the content of the auxiliary components is 0-50% of the total mass of the modified bentonite and the high-absorption resin; and all components are compounded into particles with the diameter of 1mm-2mm. The adsorption sand provided by the invention is mainly used for adsorbing indoor PM2.5 fine particles and gaseous pollutants, also is used as an adsorption purifying agent for kitchen fume discharge and an odor adsorbent in bathrooms, or is used as an adsorption purifying agent of air pollutants in automobiles, also can be used for deodorizing, and meanwhile has an indoor humidifying function.

Description

technical field [0001] The invention relates to indoor PM2.5 pollutant adsorption sand and its application, in particular to an adsorbent for PM2.5 fine particles and gaseous pollutants with indoor humidity control function and its application. Background technique [0002] In recent years, PM2.5 has become the environmental issue that people are most concerned about. According to a global survey conducted by the World Health Organization, at present, the environment and lifestyle play a dominant role in 90% of people's health and life expectancy. , genetic factors account for only 10%. As long as the environment and lifestyle are effectively improved, 80% of heart disease and diabetes, 70% of stroke, and 50% of cancer can be avoided. After years of investigation and research in the United States, it has been found that the pollution level of indoor air is 56 times higher than that of outdoor. A study by the World Bank shows that the annual loss caused by indoor air pollu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/12B01J20/26B01J20/30B01D46/00B01D53/02
CPCY02A50/2351
Inventor 尹无忌
Owner 尹无忌
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