aDepartment of Chemistry, K.C.T.C. College, Raxaul, Bihar, India, E-mail: dr.arun60@gmail.com
bDepartment of Chemistry, K.C.T.C. College, Raxaul, Bihar, India, E-mail: pandey6dinesh@gmail.com
cP.G. Department of Botany, M.S. College, Motihari, Bihar, India, E-mail: dr.rkanand@rediffmail.com
dDepartment of Chemistry, Samata College, Jandaha, Bihar, India, E-mail: nandlalcheml8@yahoo.com
1Corresponding author
Online published on 24 April, 2012.
Saw dust has been prepared as new adsorbent experiments have been conducted to investigate adsorption characteristic for arsenic metal. Effects of contact time, initial concentration pH etc. have been studied for the removal of arsenic. An empirical relationship has been obtained to predict the percentage of arsenic at any time for known values of adsorbent and initial adsorbent concentration under observed test conditions. The adsorption process was observed to follow the kinetic order. The optimum pH was exhibited to be 6.0. The adsorbed arsenic was disrobed quantitatively by 0.5 MHCl solutions and the adsorbent could be reused for three cycle consecutively.
Arsenic, Indo-Nepal Border, Batchexperiment, adsorbentconcentration
