Ultrafiltration Characteristics of Oil—Detergent—Water Systems: Membrane Fouling Mechanisms

D. Bhattacharyya, A. B. Jumawan, R. B. Grieves

Research output: Contribution to journalArticlepeer-review

53 Scopus citations


The ultrafiltration characteristics of oil (bilge oil and synthetic based lubricating oil)-nonionic detergent-water (river water and distilled water) systems are evaluated with noncellulosic, tubular membranes. The water flux behavior (membrane fouling) is dictated by the membrane resistance increase due to detergent-membrane interaction and due to surface fouling in the presence of oil-detergent emulsions and suspended solids. Membrane fouling and cleaning requirements depend on the type of oily water systems. Flux drop can be minimized by operating at temperatures above 35 °C and/or with short-term membrane depressurization. In all cases the steady-state water flux is a function of the initial membrane water flux. Depending on the oil water systems, water fluxes of 8 to 52 x 10–4 cm/sec are obtained. Excellent oil rejections are observed in all cases: even with oil-detergent systems, an ultrafiltrate oil concentration of less than 10 mg/1 can be achieved.

Original languageEnglish
Pages (from-to)529-549
Number of pages21
JournalSeparation Science and Technology
Issue number6
StatePublished - Aug 1 1979

ASJC Scopus subject areas

  • Chemistry (all)
  • Chemical Engineering (all)
  • Process Chemistry and Technology
  • Filtration and Separation


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