外磁场调控的聚合硫酸铁水解过程研究

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Abstract Based on the UV-vis spectroscopy characteristics of PFS, the magnetization of polyferric sulfate was controlled by external magnetic field. The effects of different magnetization time and magnetic field strength on the distribution of iron in PFS were studied. The results showed that the iron salt gradually combines with the hydroxyl group during the hydrolysis process, and the transition from the oligomeric state to the relatively high polymer state. On the whole, increasing the magnetization time and magnetic field strength within a certain range could effectively promote the hydrolysis of flocculants, moreover, magnetic field strength can achieve a more obvious effect on the process of multiple parameters operation. In the present paper, the flocculent conformation and qualities of polymer ferric sulfate flocculants were studied by the ultraviolet-visible spectrum. Under the same magnetic field strength, the conversion rate from the oligomeric state to the relatively high polymer state is faster when magnetization time is 4-6min.Under the same magnetization time, the conversion rate of hydrolyzed products with magnetic field strength increased by 1.9% to 12.3%.By designing appropriate magnetic field to provide a more scientific and theoretical surpport for the regulation of PFS flocculation process.

Key words： polymer ferric sulfate UV-vis magnetization iron hydrolytic form

Received: 30 November 2019

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X703

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	Articles by authors
	LIN Neng
	SHI Xiao-xue
	YUAN Yuan
	ZHANG Jin-cheng
	GUO xing-fei
	JIA hui
	WANG Jie

Cite this article:

LIN Neng,SHI Xiao-xue,YUAN Yuan等. Polymeric ferric sulfate hydrolysis based on external magnetic field regulation[J]. CHINA ENVIRONMENTAL SCIENCECE, 2020, 40(7): 2978-2984.

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http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2020/V40/I7/2978

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