Oil removal from water by selective sorption on hydrophobic cotton fibers. 1. Study of sorption properties and comparison with other cotton fiber-based sorbents.
Hydrophobic cotton fibers, obtained by acylation of cellulose with fatty acid using microwaves radiations, have a high selective affinity for vegetable or mineral oil, fuel, and petroleum, in aqueous medium. Their sorption capacity (SC) (weight of liquid picked up by a given weight of sorbent) is about 20 g/g, after draining. They are reusable after simple squeezing, and their SC reaches a constant value, ca. 12 g/g. Moreover, this product is stable in water, whereas raw cotton can develop molds, after oil sorption. Besides, it is also biodegradable.
Deschamps
Gerald
G
Laboratoire de Chimie Agro-Industrielle, ENSIACET, 118 Route de Narbonne, 31077 Toulouse Cedex 4, France.
Caruel
Herve
H
Borredon
Marie-Elisabeth
ME
Bonnin
Christophe
C
Vignoles
Christian
C
D000327:Adsorption; D001673:Biodegradation, Environmental; D002482:Cellulose / Q000737:chemistry; D032561:Cotton Fiber; D005227:Fatty Acids; D008899:Mineral Oil; D010578:Petroleum; D010938:Plant Oils; D014876:Water Pollution / Q000517:prevention & control*; D018508:Water Purification / Q000379:methods*
D005227:Fatty Acids; D010578:Petroleum; D010938:Plant Oils; D008899:Mineral Oil; D002482:Cellulose