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Abstract
This paper summarizes the results of the study on removal of arsenite ions in liquid medium at an ambient temperature by ferritization and its application in wastewater/groundwater treatment. X-ray Diffractometry (XRD), thermal analysis and dc resistivity measurement have characterized the ferruginous material (Arsenic ferrite) precipitated by both the aeration and ageing procedures. The laboratory scale experiments conducted with synthetic solution of arsenite at different concentration suggest that the arsenite ions can be effectively retrieved > 99%. The recovered arsenic ferrites may find commercial application as semiconductors, catalysts, metal scavengers, etc.
Acknowledgments
The authors are jointly indebted to Dr. Sukumar Devotta, the Director of National Environmental Engineering Research Institute (NEERI), Nagpur for providing the opportunity to present this work in this renowned journal. The authors wish to thank Dr. C.A. Moghe, Scientist, NEERI and Dr. Atul P. Vanerkar, NIMH, Nagpur for their guidance and help.
Notes
*Conditions: Total volume required: 300 mL; pH of the solution: 8.0; Rate of aeration: 45 mL min− 1.
*Conditions: Total volume: 300 mL; Aeration rate: 45 mL min− 1; and Time taken for ferrite formation: 45 min.
*Conditions: Total volume 300 mL; pH 8.0.
**Optimized condition.
*Conditions: Total volume 300 mL; and pH 7.5.