Flotation: Oper. Conds Tab

Variable Definitions, Ranges and Default Values

The following table shows a brief description of the variables appearing in this tab. The table also displays their default values and their generally acceptable range:

Variable	Default Value	Range

○ Flotation % The percentage of the corresponding pure component amount in the feed that becomes part of the floated sludge. A nonzero percentage indicates a particulate component (as opposed to a liquid component).	0.0	0 – 100
○ Particulate Concentration in Floated Sludge (g/L) The ratio of the total mass flow rate of particulate components in the floated sludge to the total volume of the floated sludge. Used to determine the flow of liquid components in the floated sludge.	40.0	Positive
○ Total Surface Loading Rate (m³/m²-day)	11.5	Positive
● Detention Time (h)	2.0	Positive
◙ Absolute Pressure (bar)	3.72	Positive
◙ Recycle Ratio (%)	0.0	Positive
○ Air To Solid Ratio (mL/g)	8.0	Positive
○ Air Solubility (mL/L)	18.5	Positive
○ Saturation Level (%)	50.0	0 – 100
● Air Requirement per Flotation Unit (L/h)	0.0	Positive
● Solids Loading Rate (kg/m²-day)	0.0	Positive
○ Liquid Viscosity (cP) The viscosity of the feed.	1.0	Positive

Symbol Key: ○ User-specified value (always input); ● Calculated value (always output); ◙ Sometimes input, sometimes output

Specification Choices / Comments

The following list describes the available specification choices in this tab; for more details on how these are implemented, see Flotation: Modeling Calculations.

•Detention Time...

The Detention Time is output when the user specifies the tank depth.