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Received March 6, 2014
Accepted May 25, 2014
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Comparison of Low Concentration and High Concentration Arsenic Removal Techniques and Evaluation of Concentration of Arsenic in Ground Water: A Case Study of Lahore, Pakistan
Sustainable Development Study Center, GC University, Lahore, Pakistan
Korean Chemical Engineering Research, October 2014, 52(5), 620-626(7), 10.9713/kcer.2014.52.5.620 Epub 1 October 2014
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Abstract
The main focus of this study was the evaluation of arsenic concentration in the ground water of Lahore at different depth and application of different mitigation techniques for arsenic removal. Twenty four hours of solar oxidation gives 90% of arsenic removal as compared to 8 hr. or 16 hr. Among oxides, calcium oxide gives 96% of As removal as compared to 93% by lanthanum oxide. Arsenic removal efficiency was up to 97% by ferric chloride, whereas 95% by alum. Activated alumina showed 99% removal as compared to 97% and 95% removal with bauxite and charcoal,_x000D_
respectively. Elemental analysis of adsorbents showed that the presence of phosphate and silica can cause a reduction of arsenic removal efficiency by activated alumina, bauxite and charcoal. This study has laid a foundation for further research on arsenic in the city of Lahore and has also provided suitable techniques for arsenic removal.
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Lara AMG, Ocampo CM, Water Air Soil Poll., 205, 237 (2010)
Gholikandi GB, Orumieh HR, Riahi R, Int. J. Safe. Security Eng., 1, 326 (2011)
Tokunaga S, Yokoyama S, Wasay SA, Water Environ. Res., 71, 299 (1999)
Edwards M, J. Am. Water Work. Assoc., 86, 64 (1994)
Neil LM, Edwards M, J. Am. Water Work. Assoc., 89, 75 (1997)
Singh P, Singh ST, Pant KK, Res. J. Chem. Environ., 5(3) (2001)
Debasish M, Debaraj M, Ho PK, J. Environ. Sci., 20(6), 683 (2008)
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Leist M, Casey RJ, Caridi D, J. Hazard. Mater., 76(1), 125 (2000)
Meng X, Bang S, Korfiatis GP, Water Res., 34, 1255 (2000)
