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Organic Loading Formula:
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Organic Loading is the amount of organic material, typically measured in kilograms per day per cubic meter that is applied to the filter bed for biological treatment of wastewater. It represents the organic load per unit area of the filter surface.
The calculator uses the Organic Loading formula:
Where:
Explanation: The equation calculates the organic loading rate by dividing the biochemical oxygen demand by the product of filter area and filter length.
Details: Accurate organic loading calculation is crucial for designing and operating trickling filters, ensuring optimal treatment efficiency, preventing overloading, and maintaining proper biological treatment conditions.
Tips: Enter BOD loading in kg/s, filter area in m², and filter length in m. All values must be valid positive numbers greater than zero.
Q1: What is the typical range for organic loading in trickling filters?
A: Organic loading rates typically range from 0.08 to 0.32 kg BOD5/m³·day for standard-rate filters and 0.32 to 1.0 kg BOD5/m³·day for high-rate filters.
Q2: How does organic loading affect filter performance?
A: Higher organic loading rates can lead to better treatment efficiency up to a point, but excessive loading may cause clogging, odor problems, and reduced treatment effectiveness.
Q3: What factors influence the optimal organic loading rate?
A: Media type, wastewater characteristics, temperature, hydraulic loading, and desired effluent quality all influence the optimal organic loading rate.
Q4: How is BOD5 measured for this calculation?
A: BOD5 is typically measured through standard laboratory tests that determine the amount of oxygen consumed by microorganisms during a 5-day incubation period at 20°C.
Q5: Can this calculator be used for other filter types?
A: While specifically designed for trickling filters, the basic principle can be applied to other biological filtration systems with appropriate adjustments for specific design parameters.