Research and development to overcome fouling of membranes. Final report | Zendy

S. C. NARANG | Zendy; Sanjeev Sharma | Zendy; Georgina P. Hum | Zendy; Susanna Ventura | Zendy; Daryl L. Roberts | Zendy; D.E. Gottschlich | Zendy; Nicole Ahner | Zendy

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Research and development to overcome fouling of membranes. Final report

Author(s) -

S. C. NARANG,

Sanjeev Sharma,

Georgina P. Hum,

Susanna Ventura,

Daryl L. Roberts,

D.E. Gottschlich,

Nicole Ahner

Publication year - 1998

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/670074

Subject(s) - membrane , ultrafiltration (renal) , concentration polarization , fouling , membrane fouling , materials science , chemical engineering , chemistry , chromatography , engineering , biochemistry

To overcome fouling of membranes, SRI International is developing a unique piezoelectric backing for ultrafiltration membranes. This backing is capable of producing local turbulence next to the membrane to minimize concentration polarization and the rate of buildup of solutes and particulate matter on the membrane surface. We have studied piezoelectrically assisted ultrafiltration in more detail, with the objective to apply this process to industrial ultrafiltrations. We conducted several ultrafiltration experiments on flat sheet membranes with model dextran solutions and with electrocoat paint to study flux enhancement as a function of parameters such as feed flow rate, feed pressure, as well as the piezodriver-membrane system

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