The continuous flocculation to remove fine particles of White Carbon suspended in the water was investigated experimentally by using the horizontal Couette flocculator of which the inner cylinder is rotating. The effects of the Taylor number, the mean velocity gradient and the relention time on flocculation caused by a polymer flocculant were examined systematically. The extent of flocculation was decided by measuring the average settling rate, the light transmittance and the volume of sediment. It was found that particles were flocculated very easily at a very short retention time. The optimum retention time was about 100 seconds in the region of 1000<Ta<2500 and the best flocculation was produced at Ta
SIMEQ