Author/Authors :
Naghizadeh، Ali نويسنده Department of Environmental Health Engineering, School of Public Health, Birjand University of Medical Sciences, Birjand, Iran , , Nasseri، Simin نويسنده 1Department of Environmental Health Engineering, School of Public Health and Institute for Environmental Research, Tehran University of Medical Sciences, Tehran, Iran , , Mahvi، Amir Hossein نويسنده Department of Environmental Health Engineering, School of Health; National Institute of Health Research; Center for Solid Waste Research, Institute fo , , Nabizadeh، Ramin نويسنده Department of Environmental Health Engineering, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran , , Rezaei Kalantary، Roshanak نويسنده Department of Environmental Health, School of Health, Tehran University of Medical Sciences, Tehran, Iran. Rezaei Kalantary, Roshanak , Rashidi، Alimorad نويسنده ,
Abstract :
In the present study, continuous adsorption experiments were carried out in an adsorption column to survey the
efficiency of the carbon nanotubes (CNTs) for removal of natural organic matters (NOMs) from aqueous solution.
Parameters such as mass of CNTs, initial NOMs concentration were evaluated and also the breakthrough curves
were obtained. Experiments performed with various initial NOMs concentration and various CNTs masses. The
breakthrough period was longer at lower initial NOMs concentration. Increase of the initial NOMs concentration,
expectedly, resulted in the faster saturation of the CNTs bed. The adsorption capacities for multi wall carbon
nanotubes (MWCNT) and single wall carbon nanotubes (SWCNT) in highest initial NOMs concentration were 53.46
and 66.24 mg/g, respectively. The effect of amount of CNTs on breakthrough time and volume of treated water
was investigated and resulted that with an increase in the mass of CNTs, breakthrough time occurs very late and
the volume of treated water increased. These findings suggested that CNTs present a great potential in removal of
NOMs from aqueous solutions.
