Treatment of solutions with binary solutes using an admicellar enhanced CSTR: background solute effect.
This study presents an admicellar enhanced continuous-flow stirred tank reactor (CSTR). Solutions containing single and binary aliphatic alcohols are introduced into this reactor for breakthrough experiments. Two phenomena occur during experiments with binary solutes: (a) a competitive effect caused by background solutes with relatively high hydrophobicity; (b) a co-solvent effect attributable to background solutes with relatively low hydrophobicity. The competition phenomenon and the corresponding mechanism involved are well demonstrated by directly monitoring the pre-adsolubilized solutes drawn out back to the solution while adsolubilizing other solutes with higher hydrophobicity. On the other hand, adsolubilization kinetics hindered by the background solute, which acts as a co-solvent, significantly alters the slopes of breakthrough curves of the target solute treated in the reactor.
Lee
Chon-Lin
CL
Department of Marine Environment and Engineering, National Sun Yat-Sen University, Kaohsiung, Taiwan, ROC. linnohc@mail.nsysu.edu.tw
Lee
Jiu-Chang
JC
D007700:Kinetics; D012995:Solubility; D012997:Solvents / Q000737:chemistry; D013501:Surface-Active Agents / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis; D018508:Water Purification / Q000379:methods*
D012997:Solvents; D013501:Surface-Active Agents; D014874:Water Pollutants, Chemical