Types of Sludge Watering Centrifuges


There are several types of centrifuges available on the market. These include the Basket, Decanter, and DecaPress centrifuges. Here is an overview of these centrifuge types. Each of these models has its own benefits and disadvantages. Learn which type of Sludge centrifuge is right for your application.

Decanter centrifuge

Decanter centrifuges are efficient tools for watering large volumes of sludge. They are used in various applications including wastewater treatment, food, and pharmaceutical processing, and manufacturing. Decanters are ideal for high-volume dewatering applications where the solids content is low. They are also useful in facilities where large quantities of fat need to be separated.

Decanter centrifuges are usually two or three-phase separation machines. The settling solids form an inner layer on the bowl wall and are extracted by centrifugal force. This process requires different operation parameters for different applications. These centrifuges can be configured according to the sludge dewatering requirements.

Generally, decanter centrifuges have more advantages than disadvantages, though there are a few limitations. They are relatively easy to install and start up. They also take up minimal space.

Basket centrifuge

A basket centrifuge for sludge dewatering works by separating the solids and liquids from an incoming feed. The outer peripheral wall of the centrifuge bowl is shaped to separate the two phases of the feed. The liquid feed enters the bowl through the feed tube 16, which is provided with a solenoid valve that controls the feed flow. The liquid feed enters the bowl through feed tube 16, travels through the nozzle, and enters the fee cone. As the feed is rotated, the solids and liquid are separated according to their specific gravities.

The sludge cake obtained from a basket centrifuge is generally more brittle and drier than other forms of sludge dewatering. A basket centrifuge can remove up to 10-15-percent solids from a 50:50 mixture of waste and anaerobically digested sludge.

DecaPress centrifuge

The DecaPress centrifuge is a high-performance, heavy-duty centrifuge that dealers sludge by using centrifugal force. The stainless steel construction offers enhanced corrosion protection and wear resistance. It can operate for decades without needing to change filter media. Furthermore, it uses fewer moving parts than filter presses.

This decanter centrifuge is a popular choice for sludge dewatering. It removes a significant amount of water and solids from sludge by allowing solids to be thrown onto the inner wall of the centrifuge bowl. The screw propeller in a DecaPress centrifuge can be designed to provide additional dewatering, solids pressing, or both.

The DecaPress decanter has a sophisticated control system that monitors the scrolling torque, which is directly proportional to the solid content of the feed. This allows the operator to optimize the operation by reducing the amount of solids emitted. This means the operation costs for the plant are reduced. This can translate into significant savings for the company.


The DecaPress Sludge Dewatering centrifuge is a centrifugal device that separates liquid from solids. Depending on the feed sludge and dosing conditions, solids recovery will vary. Some models can be configured to include a solid cake pressing area, which can increase the solids recovery. Other versions can incorporate additional dewatering of the cake after the solid cake pressing stage.

The DecaPress Sludge Dewatering centrifuge by Hiller offers a hydraulic scroll drive and closed-loop differential-speed control. It is capable of thickening sludge to 16+/-0.5% dry solids (a) and can \\\\\operate at a rate of 70-120 m3/hr. This centrifuge also allows for a high recovery rate of 95-98%.

DecaPress sludge dewatering centrifuge

The DecaPress sludge dewatered centrifuge is a high-performance decanter centrifuge that removes a significant portion of water and solids from sludge. The centrifuge works by separating solids from sludge by throwing them onto the inside wall of the centrifuge bowl and pushing them out through the sludge outlet. The centrifuge is easy to maintain and features built-in sensors to detect the amount of solids in the sludge.

The DecaPress sludge dewatered is an effective industrial centrifuge for municipal and industrial wastewater treatment facilities. Its high centrifugal force separates water from sludge, reducing the volume of wastewater needed for disposal. It is also ideal for biosolids handling, which is an important aspect of sustainability.