Fractal Dimension of Floc Growth in Micro-Coagulation Stage I: Using to Forecast Water Quality of Settled Water

Abstract:

Article Preview

The coagulation experiments, with Kaolin as objects, aluminum chloride (PAC) as coagulant, were accomplished under different conditions. In the experiment, the particle size distribution and turbidity in water were detected by on-line detector. Result showed that all floc changed in speed in the first 5 min of the coagulation process and the fractal dimension of floc growth in the first 4 min of coagulation process had best linear relation (R2 was biggest and more than 0.92 )with turbidity, total particle number and the number of particle size <5µm of settled water. The fractal dimension had a direct ratio relation with water quality of settled water and could be used as a factor to forecast water quality of settled water.

Info:

Periodical:

Advanced Materials Research (Volumes 243-249)

Edited by:

Chaohe Chen, Yong Huang and Guangfan Li

Pages:

4831-4834

DOI:

10.4028/www.scientific.net/AMR.243-249.4831

Citation:

J. Nan et al., "Fractal Dimension of Floc Growth in Micro-Coagulation Stage I: Using to Forecast Water Quality of Settled Water", Advanced Materials Research, Vols. 243-249, pp. 4831-4834, 2011

Online since:

May 2011

Export:

Price:

$38.00

[1] A. Vlaski, A. vanbreemen, G.J. Alaerts. The role of particle size and density in dissolved air flotation and sedimentation. Water Science and Technol, 1997, 36 (4): 177-189.

[2] J. Dai, B. Sun, H. Chen. Study of particle counting technique on filter operation in water supply plants. Water & Wastewater ngineering, 2008, 34 (7): 14-18.

[3] F. Wang, Y. Li, and Y. Ni. Development of fractal the ory and its application in coagulation process. Journal of Tongji University, 2005, 31(5): 614–618.

[4] J. Kilander, S. Blomstrom, A. Rasmussen. Spatial and temporal evolution of floc size distribution in a stirred square tank investigated using PIV and image analysis. Chemical Engineering Science, 2006, 61(11): 7651–7667.

DOI: 10.1016/j.ces.2006.09.001

[5] J. Nan, W. He, J. Song. Fractal growth characteristics of flocs in flocculation process in water treatment. 2009 International Conference on Energy and Environment Technology, vol 3: 582-589.

DOI: 10.1109/iceet.2009.379

In order to see related information, you need to Login.