Elaboration,characterization and evaluation of the performance of a new adsorbent material based of marine sponges: Application in adsorption of volatile organic compounds [Elaboration,caractérisation et évaluation des performances d'un nouveau matériau adsorbant à base des éponges marines: Application dans l'adsorption des composés organiques volatils]

The objective of this study is the valorization of a sub-product of marine sponges; it is the extract residue of the marine sponge cinachyrella tarentine,which represents more than 80% of the weight of the raw material. it is a natural residue that we could turn into adsorbent material under the effect of chemical activation with sulfuric acid which allows the development of a large pore in the activated material. to optimize the conditions for elaboration of our adsorbent material,experimental design was applied to reduce the number of experiment trials needed to evaluate some parameters (percentage of sulfuric acid,temperature and time of activation) and their effects on the responses (capacity of adsorption of methylene blue,yield adsorbent). the product obtained under the optimal conditions has good textural and structural properties and development of surface functions. the application of adsorbent material optimized in the treatment of gaseous effluents,has revealed its efficiency and significant adsorption properties towards some volatile organic compounds i.e. the toluene,the cyclohexane and the ethylbenzene.