Synder Introduces New Nanofiltration Membrane for Dye Desalting Applications
Case Study Summary
Synder NDX 2540 elements were tested in a simulated feed stream was comprised of 3wt% Reactive Red 195 dye and 5wt% NaCl, and testing was performed through 6x volume concentration factor (VCF). Dye rejection of NDX was consistent at >99.9% for all tested concentration factors. Sodium rejection was observed to increase slightly over the duration of testing but remained less than 22% by the end of the study, without the use of diafiltration. Overall, NDX exhibited consistently high dye rejection and high salt passage rates through 6x VCF, as well as solid flux performance under relatively low operating pressures. These results indicate that the use of NDX is effective for removing salts, increasing dye purity, and improving product value.
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With over 25 years of experience in the membrane filtration industry, Synder continues to focus on specialty process applications and provide exceptional lead times and responsiveness. The addition of NDX to our nanofiltration membrane line provides a wider range of options for customers looking to use nanofiltration for specialty process applications. For more information about our membranes, please visit our website at www.synderfiltration.com or email us at firstname.lastname@example.org.
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- Definition of a Membrane
- Membrane Materials: Organic vs. Inorganic
- Pressure-Driven Membrane Filtration Processes
- Concentration Polarization in Pressure-Driven Processes
- Degrees of Membrane Separation
- Flux Behavior in Membrane Processes