— Sludge testing instruments —

 


CST Instruments 

The CST test is a simple test to determine the detawerability of sludge and is in Standard Methods Examination of Water and Wastewater (2710 G). 

Mainly used to help determine sludge dosing levels to optimise dewatering.

SSVI Instruments 

SSVI test is used to determine the settability of a sludge. It is listed in Standard Methods Examination of Water and Wastewater (2710 C). 

The SSVI test is a simple test used to both monitor current sludge properties and help size a dewatering plant in the intial design phase.