process of obtaining modified rice husk fiber, modified rice husk fiber, use of modified rice husk fiber

摘要

process of obtaining modified rice husk fiber, modified rice husk fiber, use of modified rice husk fiber. process of obtaining modified rice husk fiber, modified rice husk fiber and use of modified rice husk fiber, obtained by chemical reaction with the amino-propyl triethoxysilane (aps) dry route, resulting in a product characterized by the presence of the amino group (- nh2) and increase of the silicon content (si) on the fiber surface, thus intensifying its reversible adsorption capacity of metallic lions to be applied in both preconcentration and in the process. aqueous effluent treatment. The modified rice husk fiber can also be used in the ph correction in acid aqueous effluents, since the presence of the same allows the ph increase of the medium.