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The formula calculates the length of the settling zone in a sedimentation tank by dividing the total surface area by the width of the tank. This provides the linear dimension along the flow direction.
The calculator uses the formula:
Where:
Explanation: This formula calculates the required length of the settling zone based on the available surface area and tank width, ensuring proper sedimentation efficiency.
Details: Accurate length calculation is crucial for designing efficient sedimentation tanks, ensuring sufficient detention time for particles to settle, and optimizing the treatment process.
Tips: Enter surface area in square meters and width in meters. Both values must be positive numbers greater than zero for accurate calculation.
Q1: Why is length important in sedimentation tank design?
A: Length determines the flow path and detention time, which directly affects the settling efficiency of particles in the tank.
Q2: What are typical values for sedimentation tank dimensions?
A: Dimensions vary based on flow rate and application, but typical lengths range from 15-90 meters for rectangular sedimentation tanks.
Q3: How does length affect sedimentation efficiency?
A: Longer tanks provide more time for particles to settle, improving removal efficiency, but excessive length may not be cost-effective.
Q4: Can this formula be used for circular sedimentation tanks?
A: No, this formula is specifically for rectangular tanks. Circular tanks use different geometric relationships for dimensioning.
Q5: What other factors should be considered in sedimentation tank design?
A: Besides length, important factors include depth, flow velocity, inlet/outlet design, sludge removal mechanism, and surface loading rate.