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A method of controlling air pollution

A heavy-pollution, doping-type technology, applied in the field of air pollution control, can solve the problems that the performance of microsphere adsorption and purification needs to be improved, and can not meet the high-efficiency purification, so as to achieve easy implementation and control, improve catalytic efficiency and adsorption efficiency, and promote effective separation effect

Active Publication Date: 2022-02-22
北京中环高科环境治理有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems that the adsorption and purification performance of microspheres in the prior art still needs to be improved and cannot meet the requirements of efficient purification, the present invention proposes the following technical solutions:

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A method for controlling air pollution, using aircraft spraying to spray purification materials at high pressure in heavily polluted industrial areas, after spraying for a period of time, air pollutants are adsorbed or degraded, and air quality is improved;

[0026] The purification material is a biomass microsphere formed by a colloidal biomass material loaded with a catalyst, and the colloidal biomass is colloidized by starch and plant fiber; the catalyst is a doped titanium dioxide-silicon dioxide gel catalyst;

[0027] The biomass microspheres are prepared by the following method:

[0028] (1) Mix doped titanium dioxide and silica source at a mass ratio of 10:3, react with dilute sulfuric acid at 60°C, and control the pH value to 4 to obtain doped titanium dioxide-silica sol, and age for 6 hours , drain naturally and set aside;

[0029] (2) Mix starch and plant fiber with a mass ratio of 10:8, soak in excess triethanolamine, soak for more than 24 hours, and centri...

Embodiment 2

[0038] A method for controlling air pollution, using aircraft spraying to spray purification materials at high pressure in heavily polluted industrial areas, after spraying for a period of time, air pollutants are adsorbed or degraded, and air quality is improved;

[0039]The purification material is a biomass microsphere formed by a colloidal biomass material loaded with a catalyst, and the colloidal biomass is colloidized by starch and plant fiber; the catalyst is a doped titanium dioxide-silicon dioxide gel catalyst;

[0040] The biomass microspheres are prepared by the following method:

[0041] (1) Mix doped titanium dioxide and silica source at a mass ratio of 10:3, react with dilute sulfuric acid at 70°C, and control the pH value to 6 to obtain doped titanium dioxide-silica sol, and age for 10 hours , drained naturally, set aside;

[0042] (2) Mix starch and plant fiber with a mass ratio of 10:8, soak in excess triethanolamine, soak for more than 24 hours, and centrif...

Embodiment 3

[0051] A method for controlling air pollution, using aircraft spraying to spray purification materials at high pressure in heavily polluted industrial areas, after spraying for a period of time, air pollutants are adsorbed or degraded, and air quality is improved;

[0052] The purification material is a biomass microsphere formed by a colloidal biomass material loaded with a catalyst, and the colloidal biomass is colloidized by starch and plant fiber; the catalyst is a doped titanium dioxide-silicon dioxide gel catalyst;

[0053] The biomass microspheres are prepared by the following method:

[0054] (1) Mix doped titanium dioxide and silica source at a mass ratio of 10:3, react with dilute sulfuric acid at 80°C, and control the pH value to 7 to obtain doped titanium dioxide-silica sol, and age for 12 hours , drained naturally, set aside;

[0055] (2) Mix starch and plant fiber with a mass ratio of 10:8, soak in excess triethanolamine, soak for more than 24 hours, and centri...

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Abstract

The invention relates to a method for controlling air pollution. In heavily polluted industrial areas, aircrafts are used to spray purification materials with high pressure. After spraying for a period of time, air pollutants are adsorbed or degraded, and air quality is improved; the purification materials are composed of Biomass microspheres formed by colloidal biomass material loaded with a catalyst, the colloidal biomass is gelatinized from starch and plant fibers; the catalyst is a doped titanium dioxide-silica gel catalyst. The purification material is mainly a biomass material, has low cost, is green and environmentally friendly, and will not cause secondary pollution when used. The preparation method of the invention can be operated continuously, is easy to implement and control, and is beneficial to industrialized production.

Description

technical field [0001] The invention relates to a method for controlling air pollution. Background technique [0002] In my country, in recent years, with the accelerated development of urbanization and the rapid development of industrialization, modern industry, transportation, construction, transportation, communication and high-end service industries in cities have brought rich material and spiritual products to urban residents. However, due to dense urban population, industrial agglomeration around the city and overload of urban transportation, the urban environment is increasingly damaged, especially air pollution. Pollutants discharged into the urban atmosphere due to industry, vehicle exhaust, and residents’ living conditions are increasing year by year. Due to the extremely limited urban space, huge energy consumption and high pollution caused by overcapacity, the city cannot perform its self-purification function. In addition, the chemical composition of pollutants...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/86B01J20/24B01J20/28B01J31/38B01J20/30B01D53/60B01D53/44B01D53/58
CPCB01J20/24B01J20/06B01J20/103B01J31/38B01J20/28019B01J20/28047B01D53/02B01D53/8637B01D53/8634B01D53/8687
Inventor 李洪芳
Owner 北京中环高科环境治理有限公司
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