1. What is Percent Polymer Concentration?

Definition: Percent Polymer Concentration is the concentration of polymer in polymer solution, expressed in decimal percentage.

Purpose: This calculation helps in determining the proper mixing ratios for polymer solutions used in various industrial applications, particularly in wastewater treatment.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( \%P \) — Percent Polymer Concentration (decimal)
• \( P \) — Polymer Feed Rate (kg/s)
• \( Pv \) — Volumetric Polymer Feed Rate (m³/s)
• \( Gp \) — Specific Gravity of Polymer
• 8.34 — Conversion factor (lb/gal to kg/m³)

Explanation: The formula calculates the percentage concentration of polymer in a solution based on the mass flow rate, volumetric flow rate, and specific gravity of the polymer.

3. Importance of Polymer Concentration Calculation

Details: Accurate polymer concentration is crucial for effective wastewater treatment, ensuring proper flocculation while minimizing chemical usage and costs.

4. Using the Calculator

Tips: Enter the polymer feed rate in kg/s, volumetric feed rate in m³/s, and specific gravity of the polymer (default 1.8). All values must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical range for polymer concentration?
A: Most polymer solutions range from 0.1% to 2% concentration depending on application.

Q2: Why is specific gravity important?
A: Specific gravity accounts for the density difference between the polymer and water, affecting concentration calculations.

Q3: What units should I use for the feed rates?
A: The calculator expects kg/s for mass feed rate and m³/s for volumetric feed rate.

Q4: What is the 8.34 constant in the formula?
A: This converts between lb/gal and kg/m³ (1 lb/gal = 8.34 kg/m³).

Q5: How accurate is this calculation?
A: The calculation is theoretically accurate when using precise measurements of all parameters.