Micro-vortex in liquid phase of conical fluidized-bed flocculation reactor

caused by fluidizing solid particles

was utilized to make colloids collision and aggregation

which results in the formation of flocs.When the value of GT increased from 1836.51 to 5399.53

the removal fraction (RF) of kaolin clay suspension increased from 23.97% to 85.37%.Also

The RF increased with the decreasing of G and the increasing of T

when G was within 169.2—189.7 s-1.According to the Fractal Dimension model

the correlation coefficient of flocs was above 0.9 at the similar operation conditions of reactor.This indicated the similarity of the flocs properties

which led to a narrow distribution of free falling velocity

and the maximum value of amount of flocs particles with the same falling velocity was up to 45%.