barium recovery from slag using ultrasonication
Renny Mariam Mathew,,Deepa Elizabeth Johnson,C.Balamurali Krishna
Published in International Journal of Advanced Research in Mechanical and Production Engineering and Development
ISSN: 2320-7256 Impact Factor:1.398 Volume:1 Issue:1 Year: 08 June,2013 Pages:1-5
Abstract
Ultrasonication is a process which has high potential in the processing of liquids and slurries by improving the mixing and chemical reactions. Its main application is its efficiency in direct degradation of pollutants, dehydration of sludge, slurry filtration and metal recovery. Barium is a toxic radionuclide released during industrial activities which leads to environmental pollution. In the current study, recently developed methods such as ultrasonication and microwave are discussed which aids in the recovery of barium from industrial slag. Power ultrasound is done at 20 kHz using power ranging from 200W to 2000W. Microwave treatment method is mainly adopted at two different temperatures of 160° C and 360°C. The process is carried out using four different acids with normalities ranging from 0.1 to 0.5N at various timings and the effect of time and normalities are studied
Kewords
Ultrasonication, Microwave, metal recovery
Reference
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