|
International Journal of Environment Science and Technology
Center for Environment and Energy Research and Studies (CEERS)
ISSN: 1735-1472 EISSN: 1735-1472
Vol. 13, No. 10, 2016, pp. 2459-2466
|
Bioline Code: st16228
Full paper language: English
Document type: Research Article
Document available free of charge
|
|
International Journal of Environment Science and Technology, Vol. 13, No. 10, 2016, pp. 2459-2466
en |
Determination of ammonia removal from aqueous solution and volumetric mass transfer coefficient by microwave-assisted air stripping
Ata, O. N.; Aygun, K.; H., Okur & Kanca, A.
Abstract
In this study, the removal of ammonia from
synthetically prepared ammonia solution at pH 11 was
investigated by using microwave radiation heating. Initially,
conventional and microwave radiation heating were
compared with respect to ammonia removal efficiency and
overall volumetric mass transfer coefficient at five different
temperatures. Overall volumetric mass transfer coefficient
was calculated from the material balance for ammonia at
unsteady-state condition. The effects of temperature, initial
ammonia concentration, air flow rate, stirring speed, and
microwave radiation power on both ammonia removal
efficiency and overall volumetric mass transfer coefficient
in liquid phase were also examined. The results of the
experiments revealed that microwave-assisted air stripping
allowed to the higher ammonia removal efficiency and
overall volumetric mass transfer coefficient value compared
to the conventional heating air stripping. Additionally,
temperature and air flow rate were determined as the
most substantial parameters affecting both ammonia
removal efficiency and overall volumetric mass transfer
coefficient value.
Keywords
Ammonia removal; Microwave radiation; Air stripping; Volumetric mass transfer coefficient
|
|
© Copyright 2016 - Islamic Azad University Alternative site location: http://www.ijest.org
|
|