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oai:www.ideals.illinois.edu:2142/83309 2023-07-11 col_2142_5131 col_2142_14770 com_2142_5130 com_2142_3518 com_2142_234

Werth, Charles J. Zhang, Changyong 2015-09-25T21:04:12Z 2015-09-25T21:04:12Z 10000-01-01 2006 2006 Alternate flushing with water and two surfactant pulses (5∼6 pore volumes) resulted in 63% of NAPL mass removal from both aquifers. However, NAPL mass flux reduction was lower from aquifer 2 (68%) with a shorter correlation length than from aquifer 1 (82%). Local effluent concentrations from aquifer 2 increased by as high as 34 times after surfactant flushing. 3D MR images of NAPL revealed that NAPL migrated downward and created additional pools in previously uncontaminated areas at the bottom of the aquifers. The additional NAPL pools were created in the direction transverse to the flow in aquifer 2, which explains the higher mass flux relative to aquifer 1. Made available in DSpace on 2015-09-25T21:04:12Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 3243041.pdf: 3019201 bytes, checksum: 496f77a13f19006349cbdb28a9149ea6 (MD5) Previous issue date: 2006 Embargo set by: Seth Robbins for item 84590 Lift date: Forever Reason: Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs Restricted to the U of I community idenfinitely during batch ingest of legacy ETDs U of I Only 131 p. Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 2006. http://hdl.handle.net/2142/83309 (MiAaPQ)AAI3243041 eng Engineering, Civil Impacts of Source Zone Architecture on Nonaqueous Phase Liquid Dissolution and Cleanup: A Magnetic Resonance Imaging Study text Civil and Environmental Engineering Civil and Environmental Engineering University of Illinois at Urbana-Champaign Dissertation Ph.D.