CONSTRUCTED WETLANDS FOR WASTEWATER TREATMENT AND EDUCATION
Author: Leffler, Michael R.
Source: Proceedings of the Water Environment Federation, WEFTEC 2001: Session 71 through Session 80 , pp. 44-54(11)
Publisher: Water Environment Federation
Abstract:University School is a private high school located in Hunting Valley, Ohio. The school's commitment to environmental education is afforded many opportunities on the 229-acre forested campus. When the school was faced with upgrading the extended aeration plant that treats the school's wastewater, the administration opted for constructed wetlands to improve the effluent quality and to provide additional educational opportunities. Extended aeration plant improvements were designed to meet Ohio EPA requirements. The Free Water Surface Wetlands was sized using kinetic equations. The constructed wetlands was designed to conform to the existing site topography and includes two trains which may be operated in series or parallel. Deeper, plant-free zones are included at the ends of each wetlands cell for flow distribution and collection. The wetlands were planted by seeding, green house plants and the natural spread of seeds from local plants. The vegetation spread rapidly and was well established by the end of the first summer. Since vegetation was established, the wetlands have produced an effluent with very low TSS, CBOD5 and Ammonia-N.
Document Type: Research Article
Publication date: January 1, 2001
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