1. What is the Surface Area of Sedimentation Tank?

The surface area of a sedimentation tank is a crucial parameter in water treatment processes. It represents the total area available for sedimentation and directly affects the efficiency of solid particle removal from wastewater or water.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( A \) — Area (m²)
• \( w \) — Width (m)
• \( LS \) — Length of sedimentation tank (m)

Explanation: The formula calculates the surface area by multiplying the width of the tank by its length, providing the total area available for sedimentation.

3. Importance of Surface Area Calculation

Details: Accurate surface area calculation is essential for designing efficient sedimentation tanks, ensuring proper settling of particles, and optimizing water treatment processes.

4. Using the Calculator

Tips: Enter the width and length of the sedimentation tank in meters. Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: Why is surface area important in sedimentation tanks?
A: Surface area determines the settling efficiency - larger areas allow more particles to settle out of the water column.

Q2: What are typical dimensions for sedimentation tanks?
A: Sedimentation tanks typically have a length to width ratio of 4:1, with length = 4 × width as a common design parameter.

Q3: How does surface area affect detention time?
A: Larger surface areas generally allow for shorter detention times while maintaining settling efficiency.

Q4: Are there other factors that affect sedimentation efficiency?
A: Yes, including water temperature, particle size and density, flow velocity, and tank depth also significantly impact sedimentation.

Q5: Can this formula be used for circular sedimentation tanks?
A: No, this formula is for rectangular tanks. Circular tanks use πr² for area calculation.