Effects of Operational Condition on Flocs Density in Flocs Blanket

Gang Zhang; Li Qing Zhang

doi:10.4028/www.scientific.net/AMR.864-867.2104

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 864-867Effects of Operational Condition on Flocs Density...

Effects of Operational Condition on Flocs Density in Flocs Blanket

Abstract:

In flocs blanket clarifier process, flocs density is a significant parameter which determine water treatment quality and efficiency. In this study, factors effecting flocs density were evaluated though kinetic and experimental methods. The kinetic study indicated that, the particle collision frequency, as well as flocs density, shares linear relationship with operational conditions such as raw water concentration, up-flow rate, and polymer dosage. The experimental results proved this conclusion, under the pilot experimental condition, flocs density declined linearly among with the increasing of up-flow rate u_w, while when the up-flow rate was higher than 40 cm/min, flocs density had no significant decrease along with the increasing of u_w. Both raw water concentration and PAM dosage presented positive correlation with flocs density. The experimental results indicated that, appropriate control of operational condition would improve the treatment effectively.

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Periodical:

Advanced Materials Research (Volumes 864-867)

Pages:

2104-2107

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.864-867.2104

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Online since:

December 2013

Authors:

Gang Zhang, Li Qing Zhang

Keywords:

Flocs Blanket, Flocs Density, Operational Condition, PAM Dosage, Up-Flow Rate

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