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原文传递 Jonathan Run Acid Rock Discharge Mitigation Strategies.

题名：	Jonathan Run Acid Rock Discharge Mitigation Strategies.
作者：	neufeld, r. d. gray, t. monnell, j. smoke, j.
关键词：	construction, clay, surface water, water quality, degradation, subsurface, discharged(water), flow management, watersheds, pennsylvania
摘要：	Jonathan Run is a tributary Beech Creek that is impacted with acid rock containing fill material and clay during the construction of I-80 in central Pennsylvania. The acidic discharge of Jonathan Run contains white aluminum precipitates resulting in surface water quality degradation. Based on field research and subsurface investigations, preliminary suggestions are made for passive and active treatment systems involving flow elimination, mitigation and treatment. The active treatment alternative was selected for the major discharge while passive treatment was used for the less contaminated discharges. A conceptual design is presented consisting of a NaOH reactor, vertical flow wetlands for excess wet weather flow management, a sludge disposal pond, and constructed wetlands for residual flows located on the opposing side of I-80. A Power Point file print out of the presentation made to the Beech Creek watershed association on January 15, 2007 in included. / NOTE: Final rept. (12 Sep 05-5 Mar 07). / Supplementary Notes: Sponsored by Pennsylvania Dept. of Transportation, Harrisburg. Bureau of Planning and Research. / Availability Note: Product reproduced from digital image. Order this product from NTIS by: phone at 1-800-553-NTIS (U.S. customers); (703)605-6000 (other countries); fax at (703)605-6900; and email at orders@ntis.gov. NTIS is located at 5285 Port Royal Road, Springfield, VA, 22161, USA.
总页数：	u0714；134p
报告类型：	科技报告