Biosorption of reactive dye by waste biomass of Nostoc linckia

被引:90
作者
Mona, Sharma [1 ]
Kaushik, Anubha [1 ]
Kaushik, C. P. [1 ]
机构
[1] Guru Jambheshwar Univ Sci & Technol, Dept Environm Sci & Engn, Hisar 125001, Haryana, India
关键词
Nostoc linckia; Spent biomass; Immobilization; Biosorption; Reactive dye; RSM; AQUEOUS-SOLUTION; DECOLORIZATION; REMOVAL; WATER; GREEN; SORPTION; COLOR; ALGAE;
D O I
10.1016/j.ecoleng.2011.04.005
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
Potential of spent biomass of a cyanobacterium, Nostoc linckia HA 46, from a hydrogen bioreactor was studied for biosorption of a textile dye, reactive red 198. The waste biomass was immobilized in calcium alginate and used for biosorption of the dye from aqueous solution using response surface methodology (RSM). Kinetics of the dye in aqueous solution was studied in batch mode. Interactive effects of initial dye concentration (100-500 mg/L), pH (2-6) and temperature (25-45 degrees C) on dye removal were examined using Box-Behnken design. Maximum adsorption capacity of the immobilized biomass was 93.5 mg/g at pH 2.0, initial concentration of 100 mg/L and 35 degrees C temperature, when 94% of the dye was removed. Fourier transform infrared (FT-IR) studies revealed that biosorption was mainly mediated by functional groups like hydroxyl, amide, carboxylate, methyl and methylene groups present on the cell surface. (C) 2011 Elsevier B.V. All rights reserved.
引用
收藏
页码:1589 / 1594
页数:6
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