Please use this identifier to cite or link to this item: https://hdl.handle.net/11681/26752
Title: Conceptual Design Report pH Level Control and Greensand Filter Study
Authors: Stanley Consultants
Keywords: Cold Regions Research and Engineering Laboratory (U.S)
United States. Comprehensive Environmental Response, Compensation, and Liability Act of 1980
Greensand filters (GSF)
Trichloroethylene (TCE) treatment system
Noncontact cooling water (NCCW) system
Issue Date: Apr-2009
Publisher: United States. Army. Corps of Engineers. Vicksburg District.
Series/Report no.: Comprehensive Environmental Restoration, Compensation, and Liability Act Administrative Record (Cold Regions Research Engineering Laboratory (CRREL)) ; April 2009
Abstract: This study addresses two concerns of the trichloroethylene (TCE) treatment system and the noncontact cooling water (NCCW) systems at the Corps of Engineers Cold Regions Research and Environmental Laboratory (CRREL) in Hanford, New Hampshire: 1. Violation of the National Pollutant Discharge Elimination System (NPDES) Permit for pH limits, and 2. Inadequate performance of the greensand filters (GSF). The causes for the high pH levels in the noncontact cooling water discharge to the river are discussed in this study. The existing carbon dioxide system used for pH control is evaluated. Alternatives for pH control are presented. The existing GSF remove iron from well water prior to air stripping. This reduces the fouling potential in the air strippers and downstream NCCW systems. CRREL has experienced operational problems with the filters. This study addresses how the performance of the GSF canbe improved. Alternative iron removal methods are also presented.
Description: Administrative Record
URI: http://hdl.handle.net/11681/26752
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