Wastewater centrifuges offer stable separation performance under fluctuating loads. With high clarification efficiency and modular automation, they’re ideal for treatment plants aiming to meet strict discharge requirements while minimizing energy and polymer consumption.
What Is a Wastewater Centrifuge?
Wastewater is a fairly generic term, simply denoting water that contains any kind of solid or liquid contaminant. For example, municipal wastewater contains organic sludge (e.g., human waste), while industrial wastewater might contain inorganic sludge (e.g., industrial chemicals that have been disposed of). Wastewater usually accumulates in large volumes, which often means a high concentration of solid waste. To dispose of this waste quickly and effectively, allowing for the proper treatment of the water itself, it’s critical to separate the solid and liquid elements of wastewater. There are a number of technologies that can be used to achieve this goal, but one of the most dependable is the wastewater centrifuge.
What are the Different Types of Wastewater Centrifuges?
There are three basic types of centrifuges that can be applicable in wastewater treatment.
Sludge Thickening/Dewatering Type
This type of centrifuge removes water from slurries, thereby thickening the sludge. To put it differently, this type of centrifuge dewaters and concentrates (or thickens) sludge. This can be helpful for continuously processing large quantities of sludge-ridden water. Most often, this type of centrifuge is used to deal with oilfield drilling mud, livestock manure, and municipal sewage.
Clarifying Type
The wastewater clarifier is a disc-stack type, producing high speeds and high centrifugal forces to separate suspended particles at the micron level. These particles are pushed to the edges of the bowl and automatically purged. This type of centrifuge application is most commonly employed in mining applications.
Oily Wastewater Separator
Often, industrial wastewater is accompanied by oil as well as sludge. This presents a unique challenge, as the oil cannot be disposed of through normal drains. This type of centrifuge is specifically designed to provide a liquid-liquid-solid separation effect.
How Our Wastewater Centrifuge Works
1-Feed & Conditioning
Wastewater is introduced into the centrifuge through a stationary feed tube. An integrated polymer dosing system may be used to condition the influent, enhancing flocculation and improving solid-liquid separation efficiency.
2-High-G-Force Separation
The bowl rotates at high speed, creating centrifugal forces up to 3000 x g. This force rapidly separates the denser solid particles from the liquid phase.
3-Solids Conveyance
A scroll conveyor rotating at a differential speed relative to the bowl conveys the separated solids toward the conical beach, where centrifugal forces enable effective dewatering.
4-Dual Discharge
Clarified effluent is discharged continuously through the liquid outlet, while dewatered solids (cake) are conveyed to a separate solids discharge port—ensuring uninterrupted operation.
Key Features of the Wastewater Centrifuge
1- Remove up to 99.5% of total suspended solids (TSS) in optimized wastewater treatment processes—ensuring high-effluent clarity and regulatory compliance.
2- Engineered for continuous 24/7 operation, with over 99% system uptime to support critical wastewater treatment processes.
3- Smart automation adjusts in real time to shifting flow rates, cutting manual monitoring and keeping your plant stable and efficient—day and night.
4- Modular design enables scalable system expansion—whether adding throughput capacity or integrating with existing wastewater treatment lines.
5- Equipped with energy-efficient VFD drive systems, our centrifuges reduce power consumption by up to 25% compared to conventional models—lowering long-term operating costs.
6- Key components are built from duplex stainless steel (SS316L/SS2205), providing exceptional resistance to corrosion, abrasion, and chemical attack—ideal for harsh wastewater environments.
The Benefits of Wastewater Centrifuge
There are a number of benefits to the centrifugal method of treating wastewater. These benefits include:
* Reduced transportation and disposal costs.
* Greater durability for the wastewater treatment equipment.
* A relatively low operating expense.
* Minimal operator requirements.
* Compact size.
Conclusion
A wastewater centrifuge is a type of separation machine. Using several thousand Gs of centrifugal force, it separates the sludge from the rest of the wastewater. The sludge accumulates along the periphery of the centrifugal tank or bowl, where it may then be discharged. The remaining, solid-free liquid may then pass through a liquid outlet, typically located at the other end of the tank or bowl.
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Reference
1- Wastewater Decanter Centrifuge
https://www.zkcentrifuge.com/product/wastewater-decanter.html#
2- What is a Wastewater Centrifuge?
https://phsenesacinc.com/what-is-a-wastewater-centrifuge/
