Beginning in 1990, efforts were initiated to implement an in situ remediation project to address the creosote and pentachlorophenol (PCP) contaminated surficial aquifer at the Bell Lumber and Pole Company (Bell Pole) Site. The remediation project involves the application of the Contained Recovery of Oily Wastes (CROW[trademark]) process which consists of hot-water injection to displace and recover the non-aqueous phase liquids (NAPL). Based on the results from the pilot test the following conclusions can be made: (1) The pilot test provided sufficient hydraulic information to design the full-scale CROW remediation system. The pumping test portion of the pilot test indicated …
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Western Research Inst., Laramie, WY (United States)
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Laramie, Wyoming
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Beginning in 1990, efforts were initiated to implement an in situ remediation project to address the creosote and pentachlorophenol (PCP) contaminated surficial aquifer at the Bell Lumber and Pole Company (Bell Pole) Site. The remediation project involves the application of the Contained Recovery of Oily Wastes (CROW[trademark]) process which consists of hot-water injection to displace and recover the non-aqueous phase liquids (NAPL). Based on the results from the pilot test the following conclusions can be made: (1) The pilot test provided sufficient hydraulic information to design the full-scale CROW remediation system. The pumping test portion of the pilot test indicated uniform aquifer properties. The entire thickness of the aquifer reached the target temperature range and containment of the injected hot water was achieved. (2) Pretest injection and production rate predictions were achieved. (3) The post test soil boring data indicated hot-water injection displaced greater than 80% of the NAPL near the injection well. The data indicates that a NAPL saturation of approximately 19% (pore volume basis) and a 500 fold decrease in PCP concentration can be achieved with 20 pore volumes of flushing. (4) The treatment system used during the pilot test was effective in reducing PCP and PAH compounds to concentrations acceptable for sanitary sewer discharge. (5) The microbial assay of the post test samples found an encouraging increase in microbial population compared to earlier data collected before the pilot test.
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Fahy, L. J.; Johnson, L. A. Jr. (Western Research Inst., Laramie, WY (United States)); Sola, D. V.; Horn, S. G. & Christofferson, J. L. (Conestoga-Rovers and Associates Limited, St. Paul, MN (United States)).Bell Pole CROW pilot test results and evaluation,
article,
January 1, 1992;
Laramie, Wyoming.
(https://digital.library.unt.edu/ark:/67531/metadc1445357/:
accessed July 16, 2024),
University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu;
crediting UNT Libraries Government Documents Department.
