Can you explain state point analysis for clarifiers?

State point analysis is a mathematical model that predicts clarifier performance using actual operating data. The operating data required to perform state point analysis using an Excel spreadsheet consists of the following six parameters:

1. Influent flow rate
2. Return activated sludge (RAS) flow rate
3. Mixed liquor suspended solids (MLSS) concentration
4. Clarifier surface area
5. Number of clarifiers in service
6. Sludge volume index (SVI)

An example of these inputs is shown in the Excel spreadsheet below along with the state point analysis graph that is generated from the inputs. The “SVISN” acronym represents a sludge volume index value generated using a 2 liter settleometer without stirring.

state point for clarifier means to settle down the activated sludge to the bottom and remove clean water to the next process or by clarifying water from a residual substance or activated sludge.

it is used for removal of suspended solid or solid particles and also separation of liquid and solid.

it is by means of continues removal of solids.