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http://dx.doi.org/10.5762/KAIS.2014.15.12.7438

Study of the Floc Size Distribution for the Efficiency Assessment of Flocculation Process in Water Works  

Jung, Jin-Hong (Environmental Engineering Research Division, Korea Institute of Civil Engineering and Building Technology)
Choi, Gye-Woon (Dept. of Civil & Environmental Engineering, Incheon University)
Park, Jae-Roh (Environmental Engineering Research Division, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.15, no.12, 2014 , pp. 7438-7442 More about this Journal
Abstract
An assessment of flocculation was performed by measuring the distribution of the floc size during sedimentation in water works. The size and number of flocs have a greater effect on an evaluation of the efficiency of flocculation rather than the turbidity. The data was collected in situ using particle image velocimetry and image analysis. The measurements were carried out at a water depth of 1m. The removal efficiency of the total organic compounds, UV absorbance and turbidity depended on the size and floc size distribution in flocculation as the G value. The G value of 50 sec-1, 30 sec-1 and 10 sec-1 showed the highest degree of efficiency in the case of an inlet water turbidity of 5 NTU, and the highest degree of efficiency was observed at a G value of 65 sec-1, 40 sec-1 and 10 sec-1 when the inlet water turbidity was 263 NTU. The number of flocs with a distribution of above $1,200{\mu}m$ was 14. The dynamics between two important growth mechanisms were investigated as the energy input changed. This is a certain method that makes use of the size and number of flocs as an efficiency assessment.
Keywords
Assessment; Distribution; Floc; Flocculation; Water Works;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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