Abstract:
This study evaluates the removal of arsenic from drinking water by using some bio-adsorbents such as jute stick powder (JSP), jute leaf powder (JLP), sugarcane powder (SCP), lily leaf powder (LLP), fish ayes powder (FAP), egg`s skull (ES), dheki (pteris) vegetable powder (DVP), fern (Drvopteris ramosa) plant powder (FPP) and water hyacinth root powder (WRHP). Both the batch and column studies were performed to assess the arsenic removal activity of bio-adsorbents. The isotherm study showed that the observed data of JSP, SCP, FAP and WHRP fit well to the Langmuir and Freundlich isotherm model. The adsorption capacities of JSP, JLP, DVP and FPP were 6.67x10-5 Kg/Kg, 5.21 x 10-5 Kg/Kg, 4.79x 10-5 Kg/Kg and 4.74x10-1 Kg/Kg. The K values were 7.79x10-6 Kg/Kg (JSP), 6.64x 10-6 Kg/Kg (JLP), 1.3x 10-5 Kg/Kg (DVP) and I.06x 10-5 Kg/Kg (FPP). The values of Langmuir constant b, for JSP, JLP, DVP and FPP are 0.039, 0.046, 0.23 and 0.13, respectively. The Freundlich constants, n> l and the values of 1/n fell between 0.36 and 0.44 for JSP, JLP, DVP and FPP.
Page(s):
157-164
DOI:
DOI not available
Published:
Journal: Proceedings of Pakistan Academy of Sciences, Volume: 44, Issue: 3, Year: 2007