SST Sludge Screw Thickener

Thicken. Separate. Filter.

The Sludge Screw Thickener (SST) for throughputs of up to 100m3/h offers an optimal solution for increasing the total solids percentage of sludge, manure, and digestate in municipal and industrial applications. The robust and easy-to-operate SST sludge thickener is available in two sizes and stands out due to its continuous operation modes, low maintenance costs, and low energy consumption.

Benefits at a glance

Frugal

Low wear and maintenance costs, reduced polymer consumption with dynamic inline mixer

Efficient

Reduction of digestate volume, increase in biogas production

Productive

High separation and thickening performance with very low energy consumption

Quiet & Clean

Minimal noise and odour

Intelligent

Fully-automatic continuous operation

Flexible

Adaption to various media and conditions is possible

SST Features

Schaubild SST - Separationstechnik

Cover

Pneumatic back-pressure device

Discharge for thickened sludge

Base frame with filtrate tank

Screw

Flange with filtrate drain

Screen baskets

Connection for spray nozzles

Drive unit and bearing

Inlet

Moving spray nozzles

Runs and runs and runs

SST as central component in sludge treatment

  • Throughout of up to 35m3/h or 700kg TS/h (SST 225) and up to 100m3/h or 2200kg TS/h (SST 400)
  • Continuous operation / high availability with non-clogging slotted screen baskets and uninterrupted cleaning process using an integrated spray cleaning system

Well-considered design

  • Innovative wipers prevent clogging of the screen slots
  • Pneumatically operating spray device with flat jet nozzles arranged in a circle around the screen area
  • High-quality bearing and seal unit
  • Closed housing ensures hygienic operation

Experience flexibility

  • Interchangeable slotted screen segments enable adaption of the thickening performance for various media
  • Optional polymerization reactor and/or dynamic inline mixer for reliable and efficient flocculation
  • Total solids percentage of cake is adjustable with pneumatic back-pressure device

How the SST works

The flow diagram below shows the individual steps of our preparation technology:

SST
Donato Cristaldi
Donato Cristaldi Head of Sales & Service
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SST Sludge Screw Thickener - Separation