期刊名称：African Journal of Environmental Science and Technology
电子版ISSN：1996-0786
出版年度：2011
卷号：5
期号：1
页码：1-7
DOI：10.5897/AJEST09.238
语种：English
出版社：Academic Journals
摘要：Biosorption of Cadmium (Cd (II)) and Arsenic (As (III)) ions from wastewater by tea waste biomass was examined in a batch experimental setup. The effects of pH and temperature on the biosorption were studied in this work. The optimum pH for the maximum efficiency of biosorption of Cd (II) and As (III) were found to be 5.5 and 7.5, respectively. The adsorption process was endothermic in nature and spontaneous. About 95 and 84.5% removal of Cd (II) and As (III) ions was obtained at 200 mg/l of adsorbate and 6 g/l and 7 g/l of adsorbent dosage, respectively. The present study showed that tea waste biomass can serve as a good and cheap substitute for conventional carbon- based adsorbents.
关键词：Tea waste biomass; Cd (II); As (III); biosorption
