WRRCSR No.1:10:83 Decontamination of Chromium Contaminated Soil and Water: Pearl Harbor Naval Shipyard, Pearl Harbor, Hawaii, Phase 2

Date
1983-01
Authors
Dugan, Gordon L.
Gee, Henry K.
Lau, L. Stephen
Journal Title
Journal ISSN
Volume Title
Publisher
Water Resources Research Center, University of Hawaii
Abstract
Phase 2 of this project represents the analytical monitoring of an estimated 64,800 ft^3 (1,835 m^3) of chromium-contaminated soil, classified as a hazardous waste (>5 mg/l chromium extract concentration as measured by the standard EP toxicity test), that was treated at the Pearl Harbor Naval Shipyard during a two-month period in late 1982. Although the treatment process details (wash-water-detention times, number of wash-water-flow through times, and type and amount of chemicals) were the contractor's proprietary information, the analytical monitoring treatment process essentially followed the general treatment methods developed in Phase 1 (laboratory and pilot plant studies). The treatment performed by Advanced Environmental Consultants, Inc., of Pittsburgh, Pennsylvania consisted of utilizing 2 yd^3 (1.53 m^3) modified dumpsters as the soil receptacles, using upflow/ downflow washing to leach the chromium from the soil, adding a reducing agent to chemically reduce chromium Cr+6 to Cr+3, raising the pH to approximately 8.5 to precipitate the chromium from solution and to dewater the chromium laden sludge. Each processed soil batch (nearly all 2 yd^3 dumpster units) were monitored for chromium extract. Only 35 of approximatley 1200 dumpster loads were above the 5-mg/l limit, and these were reprocessed.
Description
Keywords
chromium, soil contamination effects, soil treatment, Hawaii, Pearl Harbor Naval Shipyard, Oahu
Citation
Dugan GL, gee HK, Lau LS. 1983. Decontamination of chromium contaminated soil and water: Pearl Harbor Naval Shipyard, Pearl Harbor, Hawaii, phase 2. Honolulu (HI): Water Resources Research Center, University of Hawaii. WRRC special report, 1:10:83.
Rights
Access Rights
Email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.