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Xu W.,Changchun University of Technology | Xu W.,Binzhou University | Li C.,Binzhou University | Li C.,Key Laboratory of Comprehensive Utilization of Liquid Pollutants in Binzhou City | And 3 more authors.
Chinese Journal of Environmental Engineering | Year: 2013

The hydrated zirconium oxide was loaded successfully onto the D401 chelating resin to obtain a new sorbent named D401-Zr. The removal of As(V) by using D401-Zr under different experiment conditions was studied. The results indicated that D401-Zr has a good adsorption capacity to As(V) at pH<5.2. The static experiment data also demonstrated that the adsorption isotherm presented a good fitting to Langmuir model. The kinetic data of the D401-Zr adsorption to As(V) could be described by the Lagergren second-order rate equation well. The removal rate of D401-Zr to As(V) still reached more than 90% in the presence of the competing anions such as SO4 2- and Cl-, but PO4 3- and F- had a strong inhibition on As(V), which would cause the removal rate to decrease clearly.


Liu Y.,Binzhou University | Jia D.,Binzhou University | Jia D.,Key Laboratory of Comprehensive Utilization of Liquid Pollutants in Binzhou City | Yang Z.,Binzhou University
Chinese Journal of Environmental Engineering | Year: 2013

Zeolite loaded with starch(ZLS), a new composite material for removal of Pb2+, Cu2+ and Ni2+ was produced and characterized through FTIR. The effects of mass ratio of starch to zeolite, temperature, time, pH and initial concentration on the adsorption efficiency were investigated. The adsorption experimental results showed that the optimum experimental conditions were mass ratio of 10:1 of zeolite to starch, pH value of 6 and temperature of 30°C. The adsorption process follows particle internal diffusion model very well and can be according with pseudo-second-order rate equation on the whole. Furthermore, the adsorption of Pb2+, Cu2+ and Ni2+ on ZLS can be described by the Freundlich isotherm equation and may be a mult-layer adsorption process.

Loading Key Laboratory of Comprehensive Utilization of Liquid Pollutants in Binzhou City collaborators
Loading Key Laboratory of Comprehensive Utilization of Liquid Pollutants in Binzhou City collaborators