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Author: Mike Wastewater Treatment Engineer Water Treatment Expert Time: Jul 16, 2025 Introduction: I'm Mike, I've been deeply engaged in the field of wastewater treatment and environmental protection equipment for a long time, with extensive front-line experience. I focus on engineering implementation and operation optimization, sharing practical and applicable industry insights. |
In wastewater treatment plants, industrial wastewater stations, river remediation, and various other water treatment processes, the submersible mixer is one of the essential core pieces of equipment. But what exactly is it, and how does it work? Today, the VIVAMIX technical team will give you a clear and complete explanation.
What Is a Submersible Mixer?
A submersible mixer, also known as a submersible propeller, is a mixing device that integrates the motor and the impeller into a single unit capable of long-term operation underwater.
Whether it is an oxidation ditch, anaerobic tank, or anoxic tank in a municipal wastewater treatment plant, or an industrial circulation tank or river remediation project, a stable and reliable flow field provided by a submersible mixer is indispensable.
Its main functions are:
Strong water flow promotes circulation
The powerful thrust created by the impeller ensures continuous movement of the water. This circulation helps maintain consistent water quality throughout the entire tank.
01
Even suspension of solids
The mixer prevents particles from settling by maintaining a uniform suspension. This ensures that solids are effectively carried through each treatment stage.
02
Prevent sludge sedimentation
By creating a constant flow, the mixer stops sludge from settling at the bottom of the tank. This reduces the risk of blockages and maintains optimal tank capacity.
03
Enhance oxygen transfer efficiency
Effective mixing increases contact between oxygen and microorganisms. This accelerates biological reactions, improving overall treatment results.
04
What are the main components of a submersible mixer?
Taking VIVAMIX's submersible mixer as an example
Installation System
Working Principle of Submersible Mixer
Taking the VIVAMIX submersible mixer as an example, the motor drives the impeller to rotate at high speed. The impeller pushes the surrounding water forward, creating a directional flow or circulating flow.
The core working principles are:
Using the rotation of the impeller to drive liquid movement
Utilizing kinetic energy to create a circulating flow field in the tank
Keeping solid particles in the wastewater evenly suspended through mixing
Enhancing oxygen transfer and mixing efficiency within the water
Features of Submersible Mixer
Compact structure
Self-cleaning blade
Class F insulation of motor winding
Motor protection grade lP68
Two rows of independent mechanical seal, longer service life
Application Examples
Municipal Wastewater Treatment Plants: Flow propulsion in oxidation ditches, mixing in mixing tanks, and preventing sedimentation in anaerobic/anoxic tanks
Industrial Wastewater Stations: Mixing wastewater in industries such as chemical, electroplating, papermaking, and food processing
River/Lake Remediation: Preventing formation of stagnant water zones and improving water quality
Aquaculture Water Circulation: Promoting dissolved oxygen and preventing sludge deposition
Why Choose VIVAMIX?
As a professional submersible mixer brand, VIVAMIX is committed to providing customers with efficient, energy-saving, and easy-to-maintain underwater mixing solutions. From model selection and design to on-site installation, we offer tailored services to help our clients build stable and reliable wastewater treatment systems.
Feel free to contact us for a free selection plan and technical support!
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