%A ZHONG Qian-qian, YUE Qin-yan*, LI Qian, LI Ying, XU Xing, GAO Bao-yu %T Kinetics of the adsorption of Reactive Brilliant Red K-2BP onto    modified wheat residue %0 Journal Article %D 2011 %J Journal of Shandong University(Engineering Science) %R %P 133-139 %V 41 %N 1 %U {http://gxbwk.njournal.sdu.edu.cn/CN/abstract/article_1005.shtml} %8 2011-02-16 %X

For removing the dye from wastewater, the wheat residue was modified into an anion exchanger. The adsorption kinetics of Reactive Brilliant Red K-2BP (RBR K-2BP) from aqueous solutions onto modified wheat residue(MWR)were  studied in a batch reactor. Adsorption experiments were carried out as a function of pH and adsorbent dosage. In addition, the kinetic data were respectively fitted by pseudo-first-order equation, pseudo-second-order equation, Elovich equation and the intraparticle diffusion model. It was found that the pseudo-second-order equation could  provide  the best correlation to the data. The intra-particle diffusion was the main rate-controlling step for the adsorption of RBR K-2BP onto MWR. The adsorption activation energy of dye was 17.21kJ/mol, which indicated that the adsorption type  whole process was mainly of the physical adsorption.