Use of fiber Luffa Cylindrica for waters traitement charged in copper. Study of the possibility of its regeneration by desorption chemical

The accumulation of toxic industrial waste has become for man and his environment, a topical problem. Organic products come in a large share of this pollution, and their elimination is the subject of much research. It exists in the literature of many studies on plant fibers, but very few are devoted to the study of fibers of the luffa Cvlindrica, hence the idea of directing a study in this direction. Indeed, Luffa cylindrica is an annual herb of the family Cucurbitaceae fruit gives slightly angular cylindrical shape of variable size. In the first step, we studied the kinetics of adsorption system (copper/fiber of Luffa cylindrica) using copper pollution model and method of analysis as UV spectrophotometry, the estimation of specific surface area (0.082 m2/g) revealed a porous biomaterial too, although its maximum adsorption capacity (0.101 mg/g) under optimal conditions is low. In the second step two comparative models (Langmuir and Freundlich) were tested for the adsorption isotherms obtained. We completed this work by studying the possibility of regeneration (30.2%) and reuse this material. For that several parameters were optimized: the nature of the desorbent, the pHi 1.5, and the content of Luffa cylindrica desorbing, hence the method and very promising for the treatment of water laden with heavy metals. It allows them to concentrate and recover in a smaller volume, making the process more economical.