Sludge Thickening

Wastewater treatment plants commonly use thickening devices to increase the solids concentration at the end of a particular process step within the activated sludge process. Thickening of sludge increases its solids content and reduces the volume of free water thereby minimizing the unit load on downstream processes such as digestion and dewatering.

The most commonly used thickening processes include gravity thickening, dissolved air flotation, gravity belt thickening and rotary drum thickening. Centrifuge thickening is also becoming more common. The type of thickening selected is usually determined by the size of a wastewater plant, its physical constraints and the downstream process.

We offer alum sludge thickening, centrifugal thickening, dissolved air flotation (DAF) thickening, gravity thickening, lime sludge thickening, and mechanical and rotary drum thickening.

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Contact Us

For more information about sludge thickening, contact the Information Desk, Monday through Friday, 8 a.m. to 5 p.m., Eastern Standard Time: 1.866.926.8420 or 1.724.772.1402 or information.water@siemens.com.

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Sludge Thickening Products

CONTRAFAST™ Sludge Thickener Clarifier
Envirex® Gravity Thickeners for Sludge Handling
Float-Treat® Dissolved Air Flotation (DAF) Thickeners
Gravity Belt Thickener
Sludge Thickening System
Total Treat CPS

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