两亲性壳聚糖制备优化及其气浮除藻研究

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Abstract Three amphiphilic CTS were used for PosiDAF algal removal experiment, and the algal removal effects under different conditions were compared to explore the algal removal mechanisms. The results showed that the amphiphilic modification can enhance the water solubility of CTS while reduce the thermal stability of CTS. The significant degree of influence on the responding value (substitution degree) was as follows:carbon chain length>reaction time>reaction temperature>raw material feeding ratio. When the 1.0mg/L N-2hydroxypropyl trimethyl chitosan ammonium chloride (C4-HTCC) was used as modifier, the effectiveness of algae removal was the best, reaching 93.47%; because the modified microbubbles have strong electrostatic attraction.

Key words： PosiDAF chitosan modification surface modification of microbubbles response surface method adhesion mechanism influencing factors

Received: 02 January 2022

PACS:

X524

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	Articles by authors
	WANG Yong-lei
	WANG Xing-lin
	LI Ya-nan
	JIN Li
	SHAO Ming-rui
	LYU Bing-qi
	QI Hao-ran
	XUE Jie

Cite this article:

WANG Yong-lei,WANG Xing-lin,LI Ya-nan等. Preparation optimization of amphiphilic chitosan and removal of algae by air flotation[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(8): 3704-3712.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I8/3704

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