Volume Flow Rate Formula:
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Definition: This calculator determines the volume flow rate of sludge based on its weight flow rate, water density, specific gravity, and percent solids.
Purpose: It helps wastewater treatment professionals calculate the volumetric flow of sludge for processing and handling.
The calculator uses the formula:
Where:
Explanation: The formula converts weight flow to volume flow considering the sludge's properties relative to water.
Details: Accurate flow rate calculation ensures proper sizing of pumps, pipes, and treatment equipment in wastewater systems.
Tips: Enter the weight flow rate in lb/hr, water density (default 62.4 lb/ft³), specific gravity (default 2), and percent solids (default 45%). All values must be > 0.
Q1: Why is water density important in this calculation?
A: Water density serves as the reference point since specific gravity is defined relative to water's density.
Q2: What's a typical specific gravity for sludge?
A: Most sludges have specific gravity between 1.0-2.5, with 2.0 being a common default value.
Q3: How do I determine percent solids?
A: Percent solids is typically measured through laboratory testing of sludge samples.
Q4: Why is the 7.48 factor included?
A: 7.48 converts cubic feet to gallons (there are 7.48 gallons in 1 cubic foot).
Q5: What's the purpose of the 60 in the denominator?
A: The 60 converts hours to minutes since the result is in gallons per minute.