Open AccessComparison of Low Concentration and High Concentration Arsenic Removal Techniques and Evaluation of Concentration of Arsenic in Ground Water: A Case Study of Lahore, Pakistan
Author(s) -
Abdullah Yasar,
Amtul Bari Tabinda,
Uzma Shahzadi,
Pakeeza Saleem
Publication year - 2014
Publication title -
korean chemical engineering research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.168
H-Index - 9
eISSN - 2233-9558
pISSN - 0304-128X
DOI - 10.9713/kcer.2014.52.5.620
Subject(s) - arsenic , bauxite , chemistry , environmental chemistry , alum , activated charcoal , charcoal , ferric , adsorption , phosphate , environmental engineering , environmental science , inorganic chemistry , organic chemistry
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 oxi- dation 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 char- coal, respectively. Elemental analysis of adsorbents showed that the presence of phosphate and silica can cause a reduc- tion 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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