期刊名称:Journal of Applied Sciences and Environmental Management
印刷版ISSN:1119-8362
出版年度:2019
卷号:23
期号:11
页码:1991-1994
出版社:Department of Pure & Industrial Chemistry, University of Port Harcourt
摘要:The objective of this study was to investigate the biosorption of Zn (II) from aqueous solution by Aspergillus fumigatus immobilized in calcium alginate. The effects of adsorbent dosage, initial solution pH, contact time and initial Zn (II) concentrations were investigated. Results were fitted to the Langmuir isotherm. The results showed an increase in biosorption efficiency with increase in biosorbent dosage. The optimum pH of adsorption was 5.0 while the maximum adsorption was achieved within 10 minutes at initial Zn (II) concentration of 1 mg/L. The experimental results showed a high R2 (0.9070) value for the Langmuir isotherm. This therefore suggests that it is a monolayer adsorption. The maximum biosorption capacity was 3.55 mgg-1. These results indicate that zinc metal removal by biomass of Aspergillus fumigatus immobilized in alginate is a low cost wastewater treatment option and can be effectively used in small scale treatment plants.