Explore every S3A parameter.
Each guide explains what the result represents, when it is produced and how it fits into the complete S3A settlement-analysis workflow.
01 / MLSS
Mixed Liquor Suspended Solids
Measure MLSS from a compact 210 ml activated-sludge sample in approximately 10 seconds, within the specified 50 to 6,500 mg/L range.
02 / SVI
Sludge Volume Index
Relate the settled sludge volume to MLSS concentration after the unattended 30-minute settlement test.
03 / SSL
Settled Sludge Level
Record the volume occupied by activated sludge after the S3A completes its 30-minute settlement cycle.
04 / SPNT
Supernatant Clarity
Assess the solids remaining above the settled sludge after the completed settlement cycle.
05 / FS
Floating Sludge
Record an indication of sludge floating or rising during the unattended 30-minute settlement test.
06 / Optional stirrer
Optional Stirred Parameters
Add SSVI and SSSL measurement capability when the optional stirrer module is fitted to the S3A.
Extend the S3A workflow with the optional stirrer.
The optional stirrer enables Stirred Sludge Volume Index and Stirred Settled Sludge Level. SSVI and SSSL are not available from the standard unstirred S3A workflow.
SSVI guide
Learn how the optional S3A stirrer supports stirred sludge volume index measurement during a 30-minute test for activated-sludge comparisons.
Explore guideStirred settled sludge level
See how the optional S3A stirrer supports stirred settled sludge level measurement during a 30-minute test for repeatable activated-sludge comparisons.
Explore guide