H. Chiu, Shang-da Huang
1991
Citations
0
Influential Citations
16
Citations
Journal
Separation Science and Technology
Abstract
Abstract Heptachlor (HTC) and its hydrolytic product, 1-hydroxychlordene (HDCD), were removed from aqueous solutions by air stripping, solvent sublation, and foam fractionation. The effects of air flow rate, added salt, ethanol, and surfactants were studied. Foam fractionation was found to be most effective, with 99% of HTC and 97% of HDCD being removed from the aqueous solution in 5 min. This study shows that foam fractionation may find applicability for nonionic organic pollutants removal from aqueous solution. Those nonionic organic pollutants which can be removed by solvent sublation may also be removed by foam fractionation with much better separation efficiency and no organic phase (such as paraffin oil) being required.