Flocculation Kinetics Using Fe(III) Coagulant to Coagulate Kaolin Clay in Water: Effects of Temperatureby Lim-Seok Kang,
John L. Cleasby,
Abstract: Flocculation kinetics using ferric nitrate as a coagulant to coagulate kaolin clay in water was examined using several experimental factors. Both the particle size distribution data obtained from Automatic Image Analysis (AIA) system and the measurement of the degree of turbidity fluctuation in a flowing suspension by Photometic Dispersion Analyzer (PDA) were used to measure flocculation kinetics. Cold water temperature had a pronounced detrimental effect on flocculation kinetics when using Fe(III) coagulant. For improving flocculation kinetics at low water temperature, maintaining constant pOH was found to be partially effective only in the more acidic pH range studied (pH 6.8).
Subject Headings: Flocculation | Kinetics | System analysis | Thermal analysis | Nitrates | Kaolin | Particle size distribution | Water temperature
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