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The Length of Tank Given Overflow Rate formula calculates the required length of a sedimentation tank based on discharge rate, overflow rate, and tank width. This is essential for designing efficient water treatment systems and sedimentation basins.
The calculator uses the formula:
Where:
Explanation: The formula calculates the required tank length to achieve proper sedimentation based on the flow characteristics and tank dimensions.
Details: Accurate length calculation is crucial for designing effective sedimentation tanks that properly separate solids from liquids. Proper tank dimensions ensure optimal retention time and efficient particle settlement.
Tips: Enter discharge in m³/s, overflow rate in m/s, and width in meters. All values must be positive numbers greater than zero for accurate calculation.
Q1: What is overflow rate in sedimentation tanks?
A: Overflow rate is the flow rate of water per unit surface area of the tank, typically measured in m³/m²/day or m/s.
Q2: How does tank length affect sedimentation efficiency?
A: Longer tanks provide more retention time, allowing particles to settle more effectively before the water exits the tank.
Q3: What are typical overflow rates for sedimentation tanks?
A: Typical overflow rates range from 20-40 m³/m²/day for primary sedimentation and 10-20 m³/m²/day for secondary sedimentation.
Q4: Can this formula be used for rectangular sedimentation tanks only?
A: This specific formula is designed for rectangular sedimentation tanks. Circular tanks require different calculations.
Q5: What factors besides length affect sedimentation efficiency?
A: Other factors include tank depth, inlet/outlet design, temperature, particle characteristics, and flow distribution.