Applications of chitosan and chitosan derivative

A chitosan derivative, chitosan technology, applied in the application field of chitosan and its derivatives, to achieve good sedimentation effect, improve public health, and enhance the effect of application potential

Active Publication Date: 2015-04-08
中科海洋生物研究院盘锦有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Of course, starting from energy conservation and emission reduction, it is necessary to cut off the source of fine particles to control the atmospheric environment. However, due to the com

Method used

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  • Applications of chitosan and chitosan derivative
  • Applications of chitosan and chitosan derivative
  • Applications of chitosan and chitosan derivative

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Dissolve 2 g of chitosan (1800 kDa) in 1000 ml of 0.2% (mass fraction) acetic acid to obtain a chitosan solution, and then put the chitosan solution into an atomizing device. In a closed laboratory (35m 3 ), through the air particle counter (Dylos 1700, produced in the United States) to monitor the concentration of fine particulate matter PM10 and PM2.5 in the indoor air in real time (the concentration is measured by the number of particles / 0.01 cubic feet). After the fine particle readings in the closed laboratory are stable, the prepared chitosan solution is sprayed in the air in the laboratory through an atomization device, and the solution sprays 6.5mL, and the fine particle PM10 in the laboratory (see figure 1 ) and PM2.5 (see figure 2 ) concentration changes. Such as figure 1 and figure 2 It is shown that after spraying the chitosan solution, the concentration of PM10 and PM2.5 in the room both increased briefly and then decreased rapidly. This is mainly be...

Embodiment 2

[0025] Dissolve 2 g of carboxymethyl chitosan (the degree of substitution is 80%) in 1000 ml of distilled water to obtain a carboxymethyl chitosan solution, and then put the carboxymethyl chitosan solution into an atomizing device. In a closed laboratory (35m 3 ), through the air particle counter (Dylos 1700, produced in the United States) to monitor the concentration of fine particulate matter PM10 and PM2.5 in the indoor air in real time (the concentration is measured by the number of particles / 0.01 cubic feet). After the fine particle readings in the closed laboratory are stable, the prepared carboxymethyl chitosan solution is sprayed in the air in the laboratory through an atomization device, and the solution sprays 6.5mL, and the fine particle PM10 in the laboratory (see image 3 ) and PM2.5 (see Figure 4 ) concentration changes. Such as image 3 and Figure 4 It is shown that after spraying carboxymethyl chitosan solution, the concentration of PM10 and PM2.5 in the ...

Embodiment 3

[0027] N-trimethyl chitosan quaternary ammonium salt (substitution degree is 100%) 2g is dissolved in 1000ml distilled water to obtain N-trimethyl chitosan quaternary ammonium salt solution, after the N-trimethyl chitosan quaternary ammonium salt solution The ammonium salt solution is loaded into the atomization device. In a closed laboratory (35m 3 ), through the air particle counter (Dylos 1700, produced in the United States) to monitor the concentration of fine particulate matter PM10 and PM2.5 in the indoor air in real time (the concentration is measured by the number of particles / 0.01 cubic feet). After the readings of the fine particles in the closed laboratory are stable, the prepared N-trimethyl chitosan quaternary ammonium salt solution is sprayed in the air in the laboratory through the atomization device, and the solution is sprayed 6.5mL, and the fine particles in the laboratory PM10( see Figure 5 ) and PM2.5 (see Figure 6 ) concentration changes. Such as F...

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Abstract

The invention belongs to the technical field of ocean chemical engineering, relates to applications of chitosan and a chitosan derivative, and specifically relates to applications of chitosan and the chitosan derivative as fine particular matter scavengers. According to the invention, absorption characteristics of natural marine organism glycosaminoglycan-chitosan and the derivative are used for sedimentation of fine particular matters in the air; novel approach is provided for application of marine organism resources for land industrial; a novel method used for preventing and controlling haze is provided; it is beneficial for improving resident living environment, and improving human health; and the invention possesses significant social meaning.

Description

technical field [0001] The invention belongs to marine chemical engineering technology, in particular to the application of chitosan and its derivatives. Background technique [0002] In recent years, large-scale smog has occurred in most of the central and eastern regions of my country, including North China, Huanghuai, Jianghuai, and Jiangnan. Beijing's fine particulate matter index has been on the verge of "exploding the table" many times, and the air quality continues to be in a state of serious pollution at level six. Haze weather has had a huge impact on public life and health, so the public is paying more and more attention to PM10 and PM2.5, the main factors that cause haze. Fine particulate matter mainly comes from processes such as thermal power generation, industrial production, vehicle exhaust, biomass combustion, secondary generation, and road dust. The chemical composition of fine particulate matter is very complex, affected by factors such as its source, for...

Claims

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Application Information

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IPC IPC(8): B01D47/06
CPCB01D47/06
Inventor 李克成李鹏程岳洋刘卫翔邢荣娥刘松于华华秦玉坤
Owner 中科海洋生物研究院盘锦有限公司
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