Abstract
Research examined solubility of toxaphene by partially miscible organic solvents (PMOSs) in water solutions. Longer-chain and straight-chain alcohols displayed greater toxaphene cosolvency in cosolvent-water solutions than their shorter and branched counterparts. Higher molecular weight PMOSs formed ternary systems that enhanced solubility of toxaphene beyond lone completely miscible organic solvents (CMOSs). An effective first-order bi-continuum model was developed to simulate non-equilibrium sorption in miscible displacement of toxaphene from soil with varied cosolvent solutions. Overall, results showed that cosolvents increase solubility and removal efficiency of toxaphene from soil; which may be applicable for improved cosolvency and remediation of other complex chlorinated organics.
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Acknowledgment
The authors would like to thank the St. John's River Water Management District and the National Science Foundation (SGER-#0455434) for support in this research. Dr. Clark also expresses thanks to El Shaddai for guidance during this project.