Polymer Feed Rate Formula:
From: | To: |
Definition: This calculator determines the mass flow rate of polymer based on its volumetric feed rate, specific gravity, and concentration.
Purpose: It helps in wastewater treatment and other industrial processes where precise polymer dosing is required.
The calculator uses the formula:
Where:
Explanation: The formula converts volumetric flow to mass flow using the polymer's density (via specific gravity) and accounts for the active polymer concentration in the solution.
Details: Accurate polymer dosing is critical for effective water treatment, process efficiency, and cost control.
Tips: Enter the volumetric feed rate in m³/s, specific gravity (default 1.8), and concentration percentage (default 65%). All values must be > 0.
Q1: What is the 8.34 factor in the formula?
A: This is the conversion factor from cubic meters to kilograms for water (1000 kg/m³ divided by 119.826427 to convert units).
Q2: What's a typical specific gravity for polymers?
A: Most polymers have specific gravity between 1.0-1.2, but emulsion polymers can be 1.05-1.3.
Q3: How do I determine the volumetric feed rate?
A: This is typically set by your metering pump or can be calculated from your system requirements.
Q4: Why is concentration expressed as a decimal?
A: The percentage is converted to decimal (e.g., 65% = 0.65) for the calculation.
Q5: Can this calculator be used for other chemicals?
A: Yes, with appropriate specific gravity and concentration values for the specific chemical.