Fluoride Removal from Water using Chitosan Coated Activated Carbon and Cuttle Bone Ash in Combination with Alumina
Fluoride Removal from Water using Chitosan Coated Activated Carbon and Cuttle Bone Ash in Combination with Alumina
Date
2020
Authors
Laly, S. J.
Priya, E. R.
Zynudheen, A. A.
Journal Title
Journal ISSN
Volume Title
Publisher
Society of Fisheries Technologists (India)
Abstract
Fluoride contamination of ground water is an
important health concern globally. Presence of high
level of fluoride in drinking water can lead to issues
of skeletal and dental fluorosis. A combination of
chitosan coated activated carbon (CCAC) and
chitosan coated cuttle bone ash (CCBA) along with
alumina was used for the removal of fluoride from
drinking water. The sorbents were characterized by
SEM and FTIR. Combination of 2.5% CCAC and 1%
alumina resulted a fluoride removal efficiency of
85.4%, while a 2% CCBA and 2% alumina combination
resulted removal of 96.6%, also the fluoride
removal efficiency increased along with increase of
contact time (p<0.01). At higher initial fluoride
concentrations, CCBA was more effective in fluoride
removal than CCAC in combination with alumina.
This information can help in modeling and designing
of filtration devices with these adsorbents for
effectively managing fluoride - contaminated ground
water.
Description
Keywords
Fluoride, chitosan, adsorbents, activated carbon, cuttle bone ash