期刊名称：International Research Journal of Environmental Sciences
电子版ISSN：2319-1414
出版年度：2014
卷号：3
期号：7
页码：39-44
语种：English
出版社：International Science Community Association
摘要：This study established efficiency of arsenic removal from drinking water using different plant-based biomaterials that are widely available in the arsenic affected regions of Bangladesh. Dried and powdered roots of the water hyacinth (WH) plant was best at removal of As (III) and As (V) followed by banana pseudostem (BN), sugar cane bagasse (SC) and Jute. Small quantities (2 mg/ml) of each material in the form of a powder was agitated in 25 ml of drinking water, spiked with 300 µg/l of As(III)/As(V), at pH 7.0 for 2 hours in a flask using a shaker. The percentage removal of As (III) and As (V) using WH, SC, BN and Jute were (78%, 81%), (66%, 47%), (64%, 67%) and (26%, 11%), respectively. A prototype filter was prepared from WH (20 g) which was capable of removing 80% and 84% of arsenic from drinking water with concentrations of 250 and 1000 µg/l, respectively. Further studies are needed to improve the design of this filter and evaluate its performance with arsenic contaminated groundwater at the field level.
