Abstract:

Filtrodynamic behavior was observed of trans-filter time-dependant pressure signals for different frit and membrane filters using latex spheres of varying diameters. The pressure and light scattering signals were used to fit a curve to describe the characteristic loading model for different conditions.

Suggested Citation:

Dr. Wayne Reed. 2016. Experimental Data for "Filtrodynamics 2: Effects of Particle Size and Filter Type on Trans-Filter Time-Dependent Pressure Signals".. Distributed by: GRIIDC, Harte Research Institute, Texas A&M University–Corpus Christi. doi:10.7266/N7KK98SK

Publications:

Dufrechou, M., Mignard, E., Drenski, M. F., & Reed, W. F. (2014). Filtrodynamics 2: Effects of Particle Size and Filter Type on Trans-Filter Time-Dependent Pressure Signals. Macromolecular Reaction Engineering, 8(7), 529–542. doi:10.1002/mren.201300185

Purpose:

To look at different conditions under which filtrodynamics could be utilized and using the light scattering signals to fit curves to the light scattering signals for these different conditions.

Data Parameters and Units:

Figures 1A Units: Flow rate: The flow of the solution through the system in mL/min Baseline Pressure: Pressure voltage output without the filter Baseline P-1: Normalizing baseline pressure Final Pressure: Pressure voltage output after solution goes through the system Delta pressure: The change in pressure from Baseline to final Delta Pressure/(baseline pressure - 1): The change in pressure divided by the normalized initial pressure. Slope, Initial: the slope of the change in pressure Slope normalized: Slope normalized to 1 mL/min in order to compare different flow rates Slope/flow rate: The change in slope as the flow rate changes Figure 1B Units: Flow Rate (Q, cm^3/min) Baseline Pressure: Pressure voltage output without the filter (V) dp/dt, V: linear pressure increase rates Figure 2 Units: t(s): Time in seconds P1 6 um PTFE 0.2 um: The pressure prior to the 0.2 um polytetrafluoroethylene (PTFE) filter (diameter = 6 um) measured in voltage P1 6 um exponential portion: The pressure for the exponential portion using the 6 um filter P-1: The pressure of the line prior to the filter measured in differential voltage P(dynes/cm^2): transmembrane pressure range (P1-1)/P0-1): The change in pressure divided by the normalized initial pressure Visc1 (V): The viscosity prior to the filter measured in voltage LS1 6um PTFE 0.2 um: Light scattering before the 0.2 um polytetrafluoroethylene (PTFE) filter (diameter = 6 um) measured in voltage LS1 6 um PTFE 0.2 um +5V: Light scattering before the 0.2 um polytetrafluoroethylene (PTFE) filter (diameter = 6 um) measured in voltage LS1 exponential decay: light scattering exponential decay P2 (V): The pressure signal measured after the filter measured in voltage Visc 2 (v): The viscosity measured after the filter measured in voltage LS2 (V): The Light scattering signal measured after the filter measured in voltage

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