Screen coagulation and flocculation mixing conditions using G value, Gt, power density, and energy input.
Parameters
Mixing power P
W
Input Mixing power P.
Volume V
m3
Input Volume V.
Viscosity mu
mPa s
Input Viscosity mu.
Contact time t
min
Input Contact time t.
Results
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Velocity gradient G
—
Gt value
—
Power density
—
Energy input
G value over contact time
Mixing-energy breakdown
P/V-viscosity Gt map
Model and equations
$$G=\sqrt{\frac{P}{\mu V}},\quad Gt=G\,t$$
This simplified model captures the main relationship only. Boundary conditions, losses, nonlinear effects, and code-specific corrections still need separate checks.
How to read it
Use the main plot to read the controlling trend, including break points that a single result card can hide.
Use the sensitivity view to find input combinations where margin collapses quickly.
For early design, focus on which input controls margin before trusting the absolute value.
Learn Coagulation Flocculation G Value by dialogue
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When reading Coagulation Flocculation G Value, where should I look first? Moving Mixing power P changes both the plots and the result cards.
🎓
Start with Velocity gradient G, but do not treat the number as the whole answer. Use G value over contact time to confirm the assumed state, then read Mixing-energy breakdown for the distribution or trend. Use the main plot to read the controlling trend, including break points that a single result card can hide.
🙋
I can see why Mixing power P changes Velocity gradient G. How should I judge the influence of Volume V?
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Move Volume V in small steps and watch Gt value. That reveals which term is controlling the result. This simplified model captures the main relationship only. Boundary conditions, losses, nonlinear effects, and code-specific corrections still need separate checks. A single operating point is not enough; sweep the realistic scatter range.
🙋
What is P/V-viscosity Gt map for? It feels like the ordinary curve already tells the story.
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P/V-viscosity Gt map is for finding boundaries where the condition becomes risky or margin collapses quickly. Use the sensitivity view to find input combinations where margin collapses quickly. In First-pass comparison of design options before review, the important question is often what happens after a small change, not only the nominal value.
🙋
So if Velocity gradient G is within the target, can I accept the condition?
🎓
Treat this as a first-pass review. It helps with Narrowing controlling factors and worst-side conditions before detailed analysis and Teaching or explaining the equation, numbers, and visualization under the same inputs, but final decisions still need standards, measured data, detailed analysis, and vendor limits. For early design, focus on which input controls margin before trusting the absolute value.
Practical use
First-pass comparison of design options before review.
Narrowing controlling factors and worst-side conditions before detailed analysis.
Teaching or explaining the equation, numbers, and visualization under the same inputs.
FAQ
Start with Velocity gradient G and Gt value. Then use G value over contact time to confirm the assumed state and Mixing-energy breakdown to read distribution or bias. Use the main plot to read the controlling trend, including break points that a single result card can hide
Move Mixing power P alone, then move Volume V by a comparable amount and compare the change in Velocity gradient G. P/V-viscosity Gt map shows combinations where margin or performance changes quickly.
Use it for First-pass comparison of design options before review. Instead of trusting a single point, widen the input range and check whether Velocity gradient G keeps enough margin before moving to detailed analysis.
This simplified model captures the main relationship only. Boundary conditions, losses, nonlinear effects, and code-specific corrections still need separate checks. Final decisions still require standards, measured data, detailed analysis, and vendor limits.