FAQ

What is the MLSS?
MLSS is the concentration of suspended solids in the mixed liquor within an aeration tank during the activated sludge process. MLSS is usually measured using the Milligram per Liter for Density. Note that the value of MLSS is always positive.
Can the MLSS be negative?
No, the MLSS, measured in Density cannot be negative.
What unit is used to measure MLSS?
MLSS is usually measured using the Milligram per Liter[mg/L] for Density. Kilogram per Cubic Meter[mg/L], Kilogram per Cubic Centimeter[mg/L], Gram per Cubic Meter[mg/L] are the few other units in which MLSS can be measured.
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