Recommendations
Turbine flash mixerVelocity gradient to Parshall meterMechanized mixer for flash mixing (Aquaflash) and flocculation (Aquafloc)Rayleigh's numberSine
Axial turbine flocculator
Axial turbine turbine for flocculation

Input data

Incoming flow

Water temperature

Turbine diameter

Square tank side length

Tank depth

Rotation

Output data

Velocity gradient

Detention time

Description

Given the water flow to be treated, the dimensions of the tank for flocculation, the diameter and the rotation of the turbine, calculates the velocity gradient and the detention time in the tank. Relationships between tank dimensions indicated in the figure must be observed.

2.0≤LD≤6.60.9≤hD≤1.12.7≤HD≤3.9De=12Db=8B=b2θ=45°\begin{align*} &2.0 \le \frac{L}{D} \le 6.6 && && 0.9 \le \frac{h}{D} \le 1.1 && && 2.7 \le \frac{H}{D} \le 3.9\\ \\ &\frac{D}{e} = 12 && && \frac{D}{b} = 8 && && B=b\sqrt{2} \\ \\ &\theta=45\degree \end{align*}

Relações dimensionais do floculador

References

  • PARLATORE, A. C. Mistura e floculação. In: CETESB. Técnica de abastecimento de água. 3. Ed. São Paulo: CETESB, 1987.