Title :
Characterization of Particle Size Distribution (PSD) Evolution during Flocculation by an Image Acquisition and Analysis System
Author :
Zhai, Xue-Dong ; Liu, Juan-Fang
Author_Institution :
Sch. of Municipal & Environ. Eng., Harbin Inst. of Technol., Harbin, China
Abstract :
An in-situ image acquisition and analysis system was developed to characterize the dynamics of particle size distribution (PSD) during flocculation. The system consisted of a flocculator coupled with an external flow-through cell for observation and photography, a microscopic charge-coupled device video recorder with backlighting, and an image analyzer. This non-intrusive side-stream setup was used to record the evolution of the PSD to determine the flocculation dynamics of two types of particle systems: Clean kaolin, kaolin coated with natural organic matter (NOM). The results were discussed and the error induced during measurement was evaluated.
Keywords :
CCD image sensors; biotechnology; flocculation; image processing; particle size; water treatment; flocculation dynamics; image acquisition; image analysis system; image analyzer; microscopic charge-coupled device video recorder; natural organic matter; particle size distribution; particle size distribution characterization; Aggregates; Fractals; Image analysis; Information analysis; Microscopy; Optical imaging; Particle measurements; Photography; Size measurement; Suspensions; characterization of flocs; flocculation; imaging techniques; particle size distribution; water treatment;
Conference_Titel :
Environmental Science and Information Application Technology, 2009. ESIAT 2009. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-0-7695-3682-8
DOI :
10.1109/ESIAT.2009.422
