Influence of ultrasound on cadmium ion removal by sorption process.
This study presents the removal of Cd(II) from aqueous solution by the sorption process in the presence (sono-sorption) and absence (conventional method) of ultrasound. Batch experiments were conducted to study the main parameters such as sorbate concentration, amount of sorbent, contact time, and ultrasound intensity. In addition, the sorbate/sorbent concentration ratios were studied in two different ways: (a) in a constant sorbate concentration and variable amount of sorbent, (b) in a constant amount of sorbent and variable sorbate concentration. The results indicated that under proper conditions, there was a possibility to remove cadmium ion very fast and efficiently from aqueous solution. In addition, the intensity of ultrasound and the sorbate/sorbent concentration ratio were two important factors for the removal of this pollutant and therefore, this study was focused mostly on these two variables.
Entezari
Mohammad H
MH
Department of Chemistry, Ferdowsi University of Mashhad, Mashhad 91775, Iran. Electronic address: moh_entezari@yahoo.com.
Bastami
Tahereh Rohani
TR
Department of Chemistry, Ferdowsi University of Mashhad, Mashhad 91775, Iran.
D000327:Adsorption; D002104:Cadmium / Q000737:chemistry* / Q000528:radiation effects*; D007202:Indicators and Reagents; D010316:Particle Size; D012996:Solutions; D014465:Ultrasonics
D007202:Indicators and Reagents; D012996:Solutions; D002104:Cadmium