reverse osmosis membrane characteristics for partitioning triglyceride-solvent mixtures

residual free gossypol in hexane-extracted cottonseed meal is a frequent concern of the feed industry. it is known that ethanol can efficiently extract the gossypol from cottonseed. however, regeneration of ethanol from ethanol-rich miscellas by conventional evaporation is costly, due to the high latent heat of ethanol. as an alternative ..

membrane technique for renovating industrial effluents

segregation of each effluent from a manufacturing process provides potential for employing membrane-based treatment techniques, capable of selectively separating and concentrating for recovery, the useful polluting compounds. the revenues can defray a part or all of the costs of treatment. this approach has been brought to reality by the ..

use of dynamic membranes for the treatment of effluents arising from wool scouring and textile dyeing effluents

dynamic membrane technology has been extensively researched, with particular reference to industrial effluent treatment. two major plants have been commissioned in the wool scouring and textile dyeing industries. the results of the operation of these plants have shown that product water of a reusable quality was produced. in the case of w..

froth and foam coatings for woven and nonwoven fabrics

various coating methods have been used successfully on a wide variety of closely woven and knit fabrics. however, when loosely woven or open knit fabrics are coated by conventional means, strike-through becomes a major problem. fabrics that have an uneven surface due to the presence of long float yarns or knobby-type yarns pose a differen..

1985 nonwovens binders: additives chemistry and use seminar

the conference proceedings comprises 13 papers dealing with the following subjects: an introduction to polymer chemistry; colloid chemistry fundamentals of latexes; acrylic polymers; coloring nonwovens; fluorochemicals as additives to nonwoven substrates to ensure fluid repelling; waterborne epoxy resins; a discussion of binder quality, i..

mechanisms and materials for fabric dust filtration

there are increasing demands for higher air-to-cloth ratios at higher temperatures for dust filtration fabrics. the paper reviews the mechanisms for the initial fibrous filtration of gas stream and the effect of fiber geometry on aerosol collection efficiency prior to cake formation. the properties of conventional fibers, currently availa..

new super-absorbent sheet form developments

this paper reports on recent development in nonwoven fabrics which having high degree of porosity exhibit enhanced absorbance capacity. absorbent capacities are typically much higher than conventional absorbent materials such as cotton, rayon, tissue and fluff pulp. several types of super-absorbent materials have been developed. these mat..

technical symposium: nonwovens - innovative fabrics for the future, 8th, book of papers, 1980

this volume contains proceedings of 18 papers delivered at the meeting that was described to discussion of recent developments in the field of nonwoven textiles and their applications. one paper appears in abstract form only. among others, the following topics are covered - a new generation of rayon fibers for nonwovens; sorption, charact..

cotton: one of the oldest and newest fibers for nonwoven applications

this paper briefly outlines perspectives for the cotton fiber raw material supply base, and fiber attributes as related to end product performance needs and opportunities. insights are provided relative to specific differences in physical, chemical and morphological properties among various fiber raw materials which should stimulate broad..

research and development of wound dressing in maxillofacial trauma final rept. 1 may 80-16 nov 84 annual rept. 1 jul-16 nov 84

three basic formulations, non-woven fabrics, powders, and microcapsules, of local anesthetic agents, antiseptics, and antibiotics were prepared with poly-l(-)lactide as the polymer. these formulations were characterized by scanning electron microscopy, edax (energy dispersive analysis of x-rays), in vitro drug release rate, in vivo effica..