1. What is Organic Loading?

Organic Loading is the amount of organic matter, typically measured as biochemical oxygen demand or chemical oxygen demand, that is introduced into a wastewater treatment system per unit volume of the treatment tank.

2. How Does the Calculator Work?

The calculator uses the Organic Loading formula:

Where:

• \( VL \) — Organic Loading (kg/m³)
• \( Q \) — Sewage Flow (m³)
• \( BOD_i \) — BOD Influent concentration (kg/m³)
• \( V \) — Volume of Tank (m³)

Explanation: The equation calculates the organic loading rate by multiplying the sewage flow rate by the BOD concentration and dividing by the tank volume.

3. Importance of Organic Loading Calculation

Details: Accurate organic loading calculation is crucial for designing and operating wastewater treatment systems, ensuring proper treatment efficiency, and preventing system overload.

4. Using the Calculator

Tips: Enter sewage flow in m³, BOD influent concentration in kg/m³, and tank volume in m³. All values must be valid and greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical range for organic loading rates?
A: Organic loading rates vary depending on the treatment process, but typically range from 0.1 to 2.0 kg BOD/m³·day for activated sludge systems.

Q2: How does organic loading affect treatment efficiency?
A: Higher organic loading rates can lead to reduced treatment efficiency, oxygen depletion, and potential system failure if not properly managed.

Q3: What units should be used for BOD concentration?
A: BOD concentration should be in kg/m³ (equivalent to g/L) for consistency with the formula.

Q4: Can this calculator be used for other organic parameters?
A: While designed for BOD, the same formula can be applied to Chemical Oxygen Demand (COD) or other organic matter measurements.

Q5: What factors influence organic loading rates?
A: Factors include wastewater characteristics, treatment process type, temperature, and desired effluent quality standards.