Our range of CST testing devices includes the basic 304B to the fully automated CST.

Rapid determination of sludge dewatering increases solids recovery and sludge cake dryness. It optimises the dosing of conditioning chemicals, reduces operational costs and improves plant efficiency.

Stirred Specific Volume Index (SSVI) determines the settling properties of an activated sludge. It is a simple test that is easy and quick to perform, and yet provides considerable information about the sludge settlement characteristics.

SSVI can be used both in routine plant operation and for designing a final sedimentation tank.