1. What is the Discharge Calculation Formula?

The discharge calculation formula estimates the volumetric flow rate of water in a circular tank based on its dimensions and detention time. This is essential for designing and analyzing water treatment systems and storage facilities.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( Q_d \) — Discharge in tank (m³/s)
• \( D \) — Diameter of the tank (m)
• \( d \) — Depth of water in the tank (m)
• \( T_d \) — Detention time (s)

Explanation: The formula accounts for the geometric properties of the circular tank and the time water is retained to calculate the discharge rate.

3. Importance of Discharge Calculation

Details: Accurate discharge calculation is crucial for designing water treatment systems, ensuring proper detention times for treatment processes, and optimizing storage capacity in circular tanks.

4. Using the Calculator

Tips: Enter diameter and depth in meters, detention time in seconds. All values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is detention time in water treatment?
A: Detention time is the theoretical time that water remains in a tank or basin during the treatment process.

Q2: Why is circular tank geometry important?
A: Circular tanks provide efficient use of materials and space, and the geometry affects flow patterns and mixing characteristics.

Q3: What are typical detention times for different processes?
A: Detention times vary widely - from minutes for rapid mixing to hours for sedimentation and days for storage tanks.

Q4: How does depth affect discharge calculation?
A: Greater depth increases the volume of water in the tank, which affects the discharge rate for a given detention time.

Q5: Can this formula be used for non-circular tanks?
A: No, this specific formula is designed for circular tanks. Different formulas apply to rectangular or other shaped tanks.