What is example of static mixer?
Normally the fluids to be mixed are liquid, but static mixers can also be used to mix gas streams, disperse gas into liquid or blend immiscible liquids….Static mixer.
| A promotional sample of a helical static mixer enclosed in a clear tubular housing | |
|---|---|
| Uses | Mixing |
| Related items | Magnetic stirrer, vortex mixer |
How do you speed up flocculation?
Water Treatment 101: 6 Tips for Improving Coagulation, Flocculation and Clarification
- Use the correct polymer or coagulating chemicals.
- Keep injection point close.
- Slow mixing is good mixing.
- Velocity gradient is important.
- Keep an eye on temperature.
- Balance the velocity.
What chemical is used for flocculation?
Coagulants such as alum (Al2(SO4)3-14H2O), iron salts (ferric chloride (FeCl36H2O), ferric sulfate (Fe2(SO4)3) and ferrous sulfate (FeSO47H2O)), lime (Ca(OH)2) and organic polyelectrolytes are used as flocculation aids during wastewater treatment.
How are static mixers made?
A static mixer consists of a tube element containing moulded parts, the so-called mixing elements, which ensure that the flow profile is disturbed (influenced) in such a way that everything is mixed into one homogeneous mixture. In a process, external components, such as a pump, provide the forced feed to the mixer.
How does an in line mixer work?
Inline mixers feed and output material in a continuous stream, allowing material to often be perfectly hydrated, emulsified or homogenized in a single pass. They differ from other types of homogenization wherein large amounts of ingredients are mixed in a standalone unit before going through the homogenization process.
What is the principle of flocculation?
Flocculation refers to the process used to bring the coagulated particles together so that they can combine to form larger, settleable, and filterable masses of particles called floc. Zeta potential is defined and its role in coagulation described.
What makes a good flocculant?
Polymers are useful as flocculants because they are robust molecules and sometimes carry charges. Because they are so large, small particles can get trapped in the curves of the polymer causing them to accumulate a mass heavy enough to prevent their retention in solution.
What can be used as a flocculant?
The following natural products are used as flocculants:
- Chitosan.
- Isinglass.
- Moringa oleifera seeds (Horseradish Tree)
- Gelatin.
- Strychnos potatorum seeds (Nirmali nut tree)
- Guar gum.
- Alginates (brown seaweed extracts)
What is a static mix?
The term static mix refers to a mix that you create using only the faders and the pan pots in your DAW. When creating a static mix, you don’t add plugins and you don’t use automation. You simply create the best mix that you can by setting the faders and the pan pots to a static position.
How are inline static mixers used for flocculation?
Inline static mixers are devices that blend liquid mixtures with liquid products in the pipeline before the tank. Therefore, the resulting mixture is mixed well. Without the need for mixing tank agitators. Flocculation is particle agglomeration that uses binding chemicals such as polymers.
What is the average velocity of a flocculation mixer?
The average velocity of the liquid in the mixer must be greater than 0.8 m/s. Slow flow rates are better in the flocculation process so that more elements can be placed in the mixer. In conclusion, the process of flocculation aims to reduce the level of turbidity and to get clear water.
Can a static mixer be used for organic sludge?
They may not be too large, so they can fit into the mixer. You can use inline static mixers for organic sludge with solid concentrations of less than 0.5%. Second, consider the polymer concentration. It must treat the polymer with a dose of less than 0.05% polymers.
When to use coagulation and flocculation in wastewater?
For use in Coagulation/Flocculation applications where suspended solids and particles must be removed from wastewater and space is limited. A coagulant, added to wastewater downstream of Westfall’s Static Mixer Model 2800, undergoes high shear turbulence.