Fe(0) and Coke as “Active” Cap Media for PCB Destruction/Sequestration. Gregory V. Lowry Kathleen M. Johnson Paul J. Murphy Meghan L. Smith EPA-TIO Anacostia River Internet Seminar March 12, 2003. Overview. “Active” cap concept Potential “active” media
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Gregory V. Lowry
Kathleen M. Johnson
Paul J. Murphy
Meghan L. Smith
EPA-TIO Anacostia River Internet Seminar
March 12, 2003
Criteria:No PCB flux through active layer after 100 years
Size: 1-100 nm
0.05% Pd/Peerless Fe(0)
Size: 0.355 - 2.36 mm
Size: 0.15 mm
Size: 0.355 - 2.36 mmFe(0) Media
b Jonker et al. 2002
a foc= 0.001, b foc = 0.02,
Kd=Koc*foc, log Koc =4 (biphenyl)
De=1.9 E-5 cm2/s for all cases. This incorporates diurnal
seepage of ±5 cm/d due to tides.
TCLP=Toxic Characteristics Leaching Procedure
CCC=Criterion Continuous Concentration
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