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University of New Hampshire Stormwater Center
2007 Annual Report |
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Aqua-Filter Stormwater Filtration System
About the Aqua-Filter Stormwater Filtration System
General Information
Performance Data
Water Quality Treatment Process
Design
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Water Quality Treatment Process1. Runoff flows into the Aqua-Swirl, which provides pretreatment through the physical settling of particles. 2. Floating contaminants such as trash, oil, and grease are detained by an internal baffle in the Aqua-Swirl. 3. Water flows under the baffle and into the Aqua-Filter. 4. Once in the Aqua-Filter, the stormwater flows through pores in the perlite filter cartridges, which provides physical and chemical treatment that removes suspended sediments and other associated contaminants. Over time, the filtration media clogs—slowing down the infiltration rate—and the perlite cartridges must be replaced. 5. Treated runoff is channeled through an outlet pipe to the surface. |
Table of Contents
Directors' Message
About the Center
2007 Highlights
About the Field Site
How We Evaluate Performance
Stormwater Treatment Performance Comparison
How to Read this Report
Stormwater Treatment System Data
Resources for Land & Water Management
Administration
Download the Report
For a Printed Copy
Tell Us What You Think
This publication was produced in partnership with the UNH/NOAA Cooperative Institute for Coastal & Estuarine Environmental Technology. |
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