Preparation and Biosorption Evaluation of /alginate-chitosan Microcapsule

Overview

Journal Nanotechnol Sci Appl

Publisher Dove Medical Press

Specialty Biotechnology

Date 2017 Feb 23

PMID 28223783

Citations 3

Authors

Ke Tong

Affiliations

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Abstract

The aim of this study was to assess the effect of alginate-chitosan microcapsule on viability characteristics of and the ability of microcapsule to remove uranium ion from aqueous solution. The effects of particle size, chitosan molecular weight and inoculum density on viability characteristics were studied using alginate-chitosan microcapsule-immobilized experiments. In addition, the effects of pH, immobilized spherule dosage, temperature, initial uranium ion concentration and contact time on removal of uranium ion were studied using batch adsorption experiments. The results showed that alginate-chitosan microcapsule significantly improved the viability characteristics of and that subtilis/alginate-chitosan microcapsule strongly promoted uranium ion absorption. Moreover, the optimum values of pH was 6; immobilized spherule dosage was 3.5; temperature was 20°C; initial uranium ion concentration was 150 mg/L; contact time was 3 h of uranium ion absorption and the maximum adsorption capacity of uranium ion was 376.64 mg/g.

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