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Sustainable Design Guidelines to Support the Washington State Ferries Terminal Design Manual: Assessment of Copper and Zinc Adsorption to Lignocellulosic Filtration Media Using Laboratory and Field Scale Column Tests for the Purpose of Urban Stormwater Re
| 题名： | Sustainable Design Guidelines to Support the Washington State Ferries Terminal Design Manual: Assessment of Copper and Zinc Adsorption to Lignocellulosic Filtration Media Using Laboratory and Field Scale Column Tests for the Purpose of Urban Stormwater Re |
| 作者： | Yonge, D.; McIntyre, V.; Smith, J.; Norgaard, I.; Wolcott, M. |
| 关键词： | Sustainable design guidelines##Copper adsorption##Zinc##Lignocellulosic materials##Filtration media##Field scale tests##Stormwater remediation##Sustainability##Ferry terminals##Runoff##Washington State## |
| 摘要： | This report represents the third and final phase of a three-part effort aimed at providing Sustainable Design Guidelines for Washington State Ferry terminals, specifically addressing the efficacy for removal of copper and zinc using a biobased filter media both in laboratory and field conditions. This work supplements previous reports that detail design concepts in implementation of stormwater strategies to be deployed on waterfront structures. The Bainbridge Island ferry terminal staging area was selected as the field test site. A pilot scale adsorption column and submersible weir system was designed and constructed to fit within an existing stormwater vault. Laboratory and field scale continuous flow column studies were performed on raw and torrefied Douglas-fir Crumbles® (Psuedotsuga menziesii), charcoal (also referred to as biochar), and pea gravel to evaluate their effectiveness for adsorbing soluble forms of copper and zinc. Laboratory column tests indicated that the most efficient adsorption for both copper and zinc was non-torrefied wood, followed in order by pea gravel, torrefied wood, and charcoal. Increasing influent column flow by a factor of four resulted in no statistically significant difference in effluent metal concentration. A deicer flush performed on torrefied wood and charcoal columns following adsorption tests resulted in over an order of magnitude increase in column effluent copper and zinc concentration, indicating that bypassing the filtration system during deicer runoff events should be considered. |
| 总页数： | 88 |
| 报告类型： | 科技报告 |
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