The ALDEC range of decanter centrifuges was developed with

a focus on cost-efficiency, reliability and easy operation. The

ALDEC design is used for sludge dewatering in a wide range

of industrial wastewater treatment applications, as well as

municipal wastewater treatment plants.

Ideal for both small and medium-capacity installations

ALDEC decanter centrifuges are designed to be efficient, simple

to install, easy to maintain and straightforward to operate.

Installation, operating and service life costs are minimal.

The ALDEC range features

• fully enclosed process sections

• critical parts made of wear-resistant material

• high performance combined with low energy consumption.


The ALDEC decanter centrifuge design provides a series of

concrete benefits

• reduces sludge volume, which cuts down on transport and

disposal costs

• continuous operation

• compact, modular design saves space

• low installed power reduces electricity consumption.

Working principle

Separation takes place in a horizontal cylindrical bowl

equipped with a screw conveyor (see drawing on page two).

The feed enters the bowl through a stationary inlet tube and

is accelerated smoothly by an inlet distributor. The centrifugal

force that results from the rotation then causes sedimentation

of the solids on the wall of the bowl.

The conveyor rotates in the same direction as the bowl, but

slightly slower, thus moving the solids towards the conical end

of the bowl. The cake leaves the bowl through the solids discharge

openings into the casing. Separation takes place

throughout the entire length of the cylindrical part of the bowl,

and the clarified liquid leaves the bowl by flowing over

adjustable plate dams into the casing.