Cake Solids Formula:
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Definition: This calculator determines the percentage of solids in the dewatered "cake" based on solids recovery, feed solids percentage, and centrate solids percentage.
Purpose: It helps in wastewater treatment and industrial processes to evaluate the efficiency of solid-liquid separation equipment like centrifuges.
The calculator uses the formula:
Where:
Explanation: The formula calculates the percentage of solids that make it to the discharge point as dewatered cake based on the recovery efficiency and input/output concentrations.
Details: Accurate cake solids calculation helps optimize dewatering processes, assess equipment performance, and determine disposal or reuse options for the solids.
Tips: Enter the percent solids recovery, feed solids percentage, and centrate solids percentage. All values must be > 0.
Q1: What is Percent Solids Recovery?
A: It's the mass of solids in the cake divided by the mass of solids in the feed, expressed as a percentage.
Q2: What's a typical Feed Solids percentage?
A: This varies widely by application but typically ranges from 1% to 10% in wastewater treatment.
Q3: How is Centrate Solids percentage measured?
A: It's measured by analyzing the solids content in the liquid portion (centrate) that exits the centrifuge.
Q4: What affects Cake Solids percentage?
A: Factors include feed characteristics, centrifuge settings, polymer dosage (if used), and equipment design.
Q5: What's a good Cake Solids percentage?
A: This depends on the material, but 20-35% is typical for municipal wastewater biosolids.