Measurement and Characterization the Flocculation Processes by PIV

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Abstract:

Particle image velocimetry (PIV) was applied to characterize the morphological changes of flocs and to acquired velocity field data in the flocculation process in Taylor-Couette reactor. By use of PIV the morphological of the flocs with ferric trichloride (FeCl3) could be characterized and described with good performance, the velocity vector also could be measurement. It was shown that the flocculation efficiencies reached the maximum values and the size of the generated flocs was the biggest when the roating speed was in the range between 20~60 rpm. It was demonstrated that PIV can be exploited as a useful tool in the in-situ observation the flocculation processes. Keywords: flocs morphology; flocculation efficiencies; velocity vector; PIV

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644-647

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October 2013

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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