Remediation of hexachlorobenzene in soil by enhanced electrokinetic Fenton process.
The feasibility of enhanced electrokinetic Fenton process for the remediation of Hexachlorobenzene (HCB) in low permeability soil was investigated. Kaolin was artificially contaminated with HCB and treated by electrokinetic and electrokinetic Fenton processes. beta -Cyclodextrin was used to enhance the solubility of HCB in pore fluid. Three tests were carried out, of which two were electrokinetic experiments to observe the suitability of beta -cyclodextrin as a flushing solution for these processes. The third experiment was the electrokinetic Fenton test using beta -cyclodextrin as an enhancing agent. Results show that the removal efficiency depends on the choice of a suitable flushing solution and physical parameters like pH, electric current and electro-osmotic flow.
Laboratory of Applied Environmental Chemistry, Patteristonkatu, University of Kuopio, Mikkeli, Finland. plamthot@uku.fi
Anshy
A
Oonnittan
Reena A
RA
Shrestha
Mika
M
Sillanpaa
D003505:Cyclodextrins / Q000737:chemistry; D004563:Electrochemistry / Q000295:instrumentation / Q000379:methods*; D052918:Environmental Restoration and Remediation; D006581:Hexachlorobenzene / Q000737:chemistry* / Q000302:isolation & purification; D006863:Hydrogen-Ion Concentration; D012989:Soil Pollutants / Q000737:chemistry* / Q000302:isolation & purification
D003505:Cyclodextrins; D012989:Soil Pollutants; D006581:Hexachlorobenzene