Use of Al2O3-Areca nut activated carbon composite as an adsorbent for defluoridation of water
- 1Department of Engineering Science and Humanities, Institute of Engineering, Pulchowk Campus, Tribhuvan University, Nepal
Res.J.chem.sci., Volume 8, Issue (9), Pages 1-6, September,18 (2018)
The concentration of fluoride in drinking water above 1.5 mg/L can cause adverse health effects. The present study deals with defluoridation (fluoride removal) of water using Al2O3-Areca nut activated carbon composite as an adsorbent. Activated carbon (AC) was prepared from Areca nut using H3PO4 as an activating agent at 400°C under N2 atmosphere. The Al2O3-Areca nut AC composite (composite adsorbent) was prepared with the resultant AC and Al2O3. The effects of pH, adsorbent dosage and contact time on the percentage of fluoride removal were studied by batch mode. The percentage of fluoride removal by the composite adsorbent (~80) was much higher as compared to the plain AC (~40%). The highest percentage of fluoride removal was found at pH 2, adsorbent dose of 20gm/L and contact time of 180min. The adsorption data were fitted more to Langmuir isotherm than Freundlich isotherm. It describes a monolayer adsorption of the fluoride on a uniform composite adsorbent surface. The maximum adsorption capacity of the composite adsorbent for fluoride removal was 7.6 mg/gm. As such, it can be concluded that, Al2O3-Areca nut AC composite shows best performance for defluoridation and can be applied in water treatment.
- WHO (2008)., Fluoride in drinking-water, Guidelines for drinking-water quality., World Health Organization, Geneva, 1. ISBN 978 92 4 154761 1.
- Singh K., Lataye D.H., Wasewar K.L. and Yoo C.K. (2013)., Removal of fluoride from aqueous solution: status and techniques., Desalination and Water Treatment, 51(16-18), 3233-3247.
- Ramesh M., Narasimhan M., Krishnan R., Chalakkal P., Aruna R.M. and Kuruvilah S. (2016)., The prevalence of dental fluorosis and its associated factors in Salem district., Contemporary clinical dentistry, 7(2), 203.
- Bashir M.T., Ali S.B., Adris A. and Haroon R. (2013)., Health Effects Associated with Fluoridated Water Sources-A Review of Central Asia., Asian Journal of Water, Environment and Pollution, 10(3), 29-37.
- Larsen M.J. and Pearce E.I.F. (1992)., Partial defluoridation of drinking water using fluorapatite precipitation., Caries research, 26(1), 22-28.
- Dwivedi S., Mondal P. and Balomajumder C. (2014)., Bioadsorption of fluoride by Ficus religiosa (Peepal leaf powder): Optimization of process parameters and equilibrium study., Research Journal of Chemical Sciences, 4(7), 52-60.
- Malay D.K. and Salim A.J. (2011)., Comparative study of batch adsorption of fluoride using commercial and natural adsorbent., Research Journal of Chemical Sciences, 1(7), 68-75.
- Tembhurkar A.R. and Dongre S. (2006)., Studies on fluoride removal using adsorption process., Journal of environmental science & engineering, 48(3), 151-156.
- Veeraputhiran V. and Alagumuthu G. (2011)., Treatment of high fluoride drinking water using bioadsorbent., Research Journal of Chemical Sciences, 1(4), 49-54.
- Wu Y.C. and Nitya A. (1979)., Water defluoridation with activated alumina., Journal of the Environmental Engineering Division, 105(2), 357-367.
- Kaseva M.E. (2006)., Optimization of regenerated bone char for fluoride removal in drinking water: A case study in Tanzania., Journal of Water Health, 4, 139-147.
- Das N., Pattanaik P. and Das R. (2005)., Defluoridation of drinking water using activated titanium rich bauxite., Journal of Colloid and Interface Science, 292(1), 1-10.
- Mondal P., George S. and Mehta D. (2014)., Use of calcite for defluoridation of drinking water in acidic medium., Research Journal of Chemical Sciences, 4(6), 62-65.
- Joshi S., Shrestha L.K., Kamachi Y., Yamauchi Y., Pradhananga M.A., Pokhre B.P. and Pradhananga R.R. (2015)., Sodium hydroxide activated nanoporous carbons based on Lapsi seed stone., Journal of nanoscience and nanotechnology, 15(2), 1465-1472.
- Alagumuthu G. and Rajan M. (2010)., Kinetic and equilibrium studies on fluoride removal by zirconium (IV)-impregnated ground nut shell carbon., Hemijska Industrija, 64 (4), 295-304.
- Joshi S. and Pradhananga M.A. (2016)., Removal of Fluoride Ions by Adsorption onto Fe 2 O 3/Areca Nut Activated Carbon Composite., Journal of the Institute of Engineering, 12(1), 175-183.
- Ramos R.L., Ovalle-Turrubiartes J. and Sanchez-Castillo M.A. (1999)., Adsorption of fluoride from aqueous solution on aluminum-impregnated carbon., Carbon, 37(4), 609-617.
- Tchomgui-Kamga E., Alonzo V., Nanseu-Njiki C.P., Audebrand N., Ngameni E. and Darchen A. (2010)., Preparation and characterization of charcoals that contain dispersed aluminum oxide as adsorbents for removal of fluoride from drinking water., Carbon, 48(2), 333-343.
- Hao J., Lirong T., Qiaoling Z., Xinyu Z., Guanfeng L. and Biao H. (2011)., Research on carbon/pottery adsorption composite for removing fluoride., Scientia Silvae Sinicae, 47(4), 147-151.
- Lunge S., Thakre D., Kamble S., Labhsetwar N. and Rayalu S. (2012)., Alumina supported carbon composite material with exceptionally high defluoridation property from eggshell waste., Journal of Hazardous Materials, 237, 161-169.
- Basker A., Shabudeen P.S., Daniel S. and Kumar P.V. (2014)., Adsorptive removal of malachite green from aqueous solution using Areca husk carbon., Rasayan journal of chemistry, 7(1), 1-15.
- Haloi N., Sarma H.P. and Chakravarty P. (2013)., Biosorption of lead (II) from water using heartwood charcoal of Areca catechu: equilibrium and kinetics studies., Applied Water Science, 3(3), 559-565.
- Chakrabarty S.U.T.A.P.A. and Sarma H.P. (2011)., A study on defluoridation capacity of Betel nut coir charcoal from aqueous solutions., Poll Res, 30(4), 75-80.
- American Public Health Association (2012)., Standard Methods for examination of water and wastewater., 22nd edition, USA, ISBN 978-087553-013-0.