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RECORD NUMBER: 12 OF 23

OLS Field Name OLS Field Data
Main Title Long-term performance of permeable reactive barriers using zero-valent iron : an evaluation at two sites /
Author Wilkin, Richard T. ; R. T. WILKIN ; R. W. PULS ; G. W. Sewell
Other Authors
Author Title of a Work
Puls, Robert W.
Sewell, Guy W.
CORP Author National Risk Management Research Lab., Ada, OK.
Publisher U.S. Environmental Protection Agency, National Risk Management Research Laboratory,
Year Published 2002
Report Number EPA 600-S-02-001
Stock Number ADA487826
OCLC Number 50595562
Subjects Groundwater--Purification. ; Soil remediation--Technological innovations. ; Bioremediation. ; Iron--Environmental aspects.
Additional Subjects Water chemistry ; Permeability ; Sites ; Reactivities ; Iron ; Precipitates ; Valence ; Geochemistry ; Microbiology ; Test and evaluation ; Barriers ; Prb(Permeable reactive barrier)
Internet Access
Description Access URL
http://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=30003TJ7.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
EHAM  EPA/600/S-02/001 Region 1 Library/Boston,MA 05/25/2016
EJAD  EPA 600/S-02-001 Region 3 Library/Philadelphia, PA 11/21/2003
EJBD ARCHIVE EPA 600-S-02-001 Headquarters Library/Washington,DC 02/19/2019
EKAM  600/S-02/001 Region 4 Library/Atlanta,GA 03/07/2003
ELBD  EPA 600-S-02-001 AWBERC Library/Cincinnati,OH 11/01/2002
EMBD  EPA/600/S-02/001 GWERD Library/Ada,OK 09/13/2002
NTIS  ADA487826 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 04/28/2010
Collation 18 pages : illustrations ; 28 cm.
Abstract
Research described in this research brief explores the geochemical and microbiological processes occurring within zero-valent iron treatment zones in permeable reactive barriers that may contribute to decreases in iron reactivity and decreases in reaction zone permeability that, in turn, may eventually lead to system plugging and failure. Using advanced surface analytical techniques together with detailed coring and water sampling programs at two geographically, hydrogeologically, and geochemically distinct iron barrier installation sites, specific objectives of this research project were to: 1) Characterize the type and nature of surface precipitates forming over time at the upgradient aquifer/iron interface, within the iron zone, and at the downgradient/iron interface. 2) Develop conceptual models that predict the type and rate of precipitate formation based on iron characteristics and water chemistry. 3) Identify type and extent of microbiological activity upgradient, within and downgradient in at least one of the chosen sites to evaluate microbiological response or effects from emplaced iron into an aquifer system. 4) Develop practical and cost-effective protocols for long-term performance assessments at permeable reactive barrier installations.
Notes
"March 2002." Includes bibliographical references (page 18). "EPA 600-S-02-001."