Abstract
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 language | English |
|---|---|
| Pages (from-to) | 529-549 |
| Number of pages | 21 |
| Journal | Separation Science and Technology |
| Volume | 14 |
| Issue number | 6 |
| DOIs | |
| State | Published - Aug 1 1979 |
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- Process Chemistry and Technology
- Filtration and Separation