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THE TREATMENT OF CONTAMINATED WATER AT REMEDIAL WOOD PRESERVING SITES
Citation:
Grosse*, D W., E R. Bates*, AND E SahleDemessie**. THE TREATMENT OF CONTAMINATED WATER AT REMEDIAL WOOD PRESERVING SITES. Remediation Journal 10(3):111-127, (2000).
Description:
Contaminated groundwater and surface water have posed a great challenge in restoring wood preserving sites to beneficial use. Often contaminated groundwater plumes extend far beyond the legal property limits, adversely impacting drinking water supplies and crop lands. To contain, treat and/or remediate these valueable resources is an important parrt of restoring these impacted sites. Various options are available for remediating the groundwater and other affected media at these sites. Frequently, pump and treat technologies have been used which can provide well-head treatment at installed extraction wells. This approach has shown to be costly and excessively time consuming. Some of the technologies used for pump and treat are granular activated carbon (GAC), biotreatment, and chemical oxidation. Other approaches use in-situ treatment applications which include enhanced bioremediation, monitored natural attenuation (biotic and abiotic) and chemical reduction/fixation. Ultimately it may only be feasible, economically or practicably, to use hydraulic containment systems. Depending upon site-specific conditions, these treatment approaches can be used in various combinations to offer the best remedial action. A comparison of water treatment system costs extrapolated from the treatability studies performed on contaminated groundwater from the McCormick-Baxter Superfund Site in Stockton, Ca, yielded operation and maintenance costs of $1.19/1,000 gal for carbon treatment and $7.53/1,000 gal for UV peroxidation, respectively.