Study of Flocs Morphology of Chitosan Coagulation Aid Treatment and Fractal Dimensions

Abstract:

Flocculation water treatment is one of the important aspects of water treatment .The aim of this work is to use PFS for treating Yellow River surface water and different molecular weights of chitosan as coagulant aid. Electron microscope was used to observe flocs morphology and study CTS coagulation aid morphological change, floc image with microscope camera system analysis, calculation of floc fractal dimension. The results show that the different molecular weights of CTS in dealing with surface raw water to play a good coagulation aid effect. Microscope and image analysis system of flocs morphology show that fractal dimension of morphology of PFS / CTS were significantly higher ,Among them，high molecular weight of CTS as coagulant aid，and fractal dimension of morphology of PFS/ CTS were 1.1026,1.5593 , low molecular weight of CTS as coagulant aid，and fractal dimension of morphology of PFS/ CTS were 1.0904,1.5440 respectively. Floc fractal dimension changes to better reflect the flocculation level and treatment effect for the establishment of floc fractal dimension number of changes in the coagulation control is provided for reference.

• Periodical: Advanced Materials Research (Volumes 282-283)
• Pages: 59-63
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.282-283.59
• Online since: July 2011
• Authors: Bing Tao Liu, Hai Yang Cong, Yong Cao
• Keywords: Chitosan (CS), Coagulation, Flocs, Fractal Dimension

References

[1] Logan B E, Kilps J R. Environments . Water Research, 1995, 29 (3): 443 - 443.

[2] Bushell G, Amal R,. J Colloid Interface Sci, 2000, 221(12): 186.

[3] Jiang Q, Logan B E. Envion Sci. Technol., 1991, 25 (12) ：2031 - (2038).

[4] Li D H, Ganczarczyk J. Envion Sci Technol, 1989, 23 (11) ：1385 - 1389.

[5] Wang Xiaochang, Tambo N. A , ACTA scientiae circumstantiae, 2000, 20(3): 257-262.

[6] Chang Ying, Zhang Jinshong, Wang Baozhen., China water and wastewater, 2005, 25 (2)：1-5.