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4271696 
Journal Article 
Temperature and air-water ratio influence on the air stripping of benzene, toluene and xylene 
Abdullahi, ME; Abu Hassan, MA; Noor, ZZ; Ibrahim, RKR 
2015 
Yes 
Desalination and Water Treatment
ISSN: 1944-3994
EISSN: 1944-3986 
Desalination and Water Treatment 
54 
10 
2832-2839 
English 
WOS:000353715700018 
Volatile organic compounds in water and wastewater can be removed using air stripping. The effects of temperature and air-water ratios on the air stripping of benzene, toluene and xylene (BTX) from wastewater have been examined at a temperature range of 30-50 degrees C and air-water ratios of 20-100. Removal efficiencies of >99%, >93% and 93% for BTX, respectively, were obtained at 50 degrees C and air-water ratios of 100. The removal efficiencies increase non-linearly with temperature and air-water flow ratio. The effects of increasing temperature on the removal efficiency were found to be more significant at temperatures between 30 and 35 degrees C than at 45 and 50 degrees C. The effects of increasing water-air ratios on the removal efficiency were more significant at air-water ratios of 20-60 than at 80-100. The results indicate that a high removal of BTX can be achieved by operating the air stripper at high temperature conditions even at relatively low air-water ratios and vice versa. 
Removal efficiency; Volatile organic compounds; Wastewater treatment; Air stripping