Decanters compete with other separation technologies such as filter presses, screw presses, etc.

Though all these different equipment have advantages, decanters have some specific benefits. These benefits are due to the decanter centrifuge being a mechanical separator.

All the other technologies use media separation, which has inherent drawbacks.

The following is a list of advantages of decanter centrifuges over filtration methods.

1. Process Adaptability:

Decanter centrifuges can easily handle product variations. They can produce consistent separation results even with varying flow rates. These centrifuges can handle process fluid mix variations without final product degradation.

2. Compact Dimensions:

Decanter centrifuges have a smaller footprint than belt and filter presses of similar capacity. This small size allows for the installation of decanters in small, confined spaces.

3. Vapor Tight Design:

The basic design of decanters includes a rotating bowl in an enclosed chamber. This design prevents odors, undesirable fumes, and gases from contaminating the operating space.

4. Low Labor Costs:

Fluid separation through a decanter is practically an automatic process. This process requires minimal manual attendance service, thereby reducing associated labor costs.

5. Reduced Operating Cost:

Since only worn parts are replaceable in decanter centrifuges, it minimizes long-term operating costs. Filter media need constant replacement in other separation methods.

6. Long Service Life:

Robust design and construction are primary features of decanter centrifuges. Besides, high-quality construction material helps decanters perform with reliability for extended periods. Replaceable wear parts such as sludge discharge ports enable long service life.

7. Easy and Quick Installation:

Decanter centrifuge systems are self-contained and are thus easy to install. The speed and ease of commissioning allow them to be productive quickly.

8. Wide Range of Particle Separation:

The decanter separates particle size ranges from 1 Micron to 15 mm or larger. This ability gives decanters a significant advantage over media filters with fixed apertures.

9. Three-Phase Separation:

Besides separating solids from liquids, three-phase decanters (tricanters) also separate immiscible liquids. This separation co-occurs with solids separation.

10. Easy Adjustments for Desired Separation Phase:

The decanter centrifuge user can adjust sludge dryness or centrate clarity quickly and easily. This ease of phase quality adjustment is an added benefit lacking in filtration equipment.
The installed weir plate controls the separated phase dryness by changing the pond depth.