Adsorption of Strontium from Aqueous Solution Using Collagen Fiber Immobilized Tannins

Abstract:

The removal of strontium from aqueous solution with collagen fiber immobilized tannins was studied. The effects of several experimental parameters such as pH, dosage, temperature, contact time and initial concentration of strontium on removal efficiency of strontium were investigated to determine the optimum conditions of strontium sorption process. The adsorbent was characterized by SEM and FTIR analysis. The results of regression analysis indicated that temperature parameters were not individually statistically significant for Sr²⁺ adsorption. However, the efficiency of strontium adsorption increased with the increase in pH and dosage. The adsorption capacity was increased with increasing initial concentration of Sr²⁺. The removal efficiency of Sr²⁺ was 49% at optimum pH of 6 and initial concentration of 20mg/L. Moreover, the absorption data were fitted well to the Langmuir sorption isotherm model.

• Periodical: Advanced Materials Research (Volumes 726-731)
• Pages: 2107-2110
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.726-731.2107
• Online since: August 2013
• Authors: Han Zhou, Xue Gang Luo, Xiao Yan Lin
• Keywords: Adsorption, Collagen Fiber, Strontium, Tannins

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