Document Detail


Rerating capacity of a constructed wetland treatment system.
MedLine Citation:
PMID:  11804131     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The 482-hectare (ha) City of Orlando (Florida) Easterly Wetlands (OEW) was designed to reduce nutrient concentrations in 0.90 m3/s of wastewater from the Iron Bridge Regional Water Reclamation Facility. Design influent nutrient concentrations were 6 mg/L total nitrogen (TN) and 0.75 mg/L total phosphorus (TP). Actual TN and TP concentrations have been less than design, averaging 2.6 mg/L and 0.29 mg/L, respectively from January 1988 through December 1999. If influent concentrations remain at these levels, the OEW may have the potential to treat significantly higher flows since less than 20% of the total area was utilized for nutrient reduction. To test this theory, a capacity study was performed for approximately nine months in 1997 and 1998. Simulated flows of approximately 1.26 m3/s, 1.66 m3/s, and 1.93 m3/s were tested. It was found that approximately 15% of the area was utilized for nutrient reduction during the 1.26 m3/s simulation, 35% in the 1.66 m3/s, and 1.93 m3/s simulations. Based on these testing results, an application was submitted to the state in early 2000 to increase the permitted capacity to 1.57 m3/s.
Authors:
J A Jackson; M Sees
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Water science and technology : a journal of the International Association on Water Pollution Research     Volume:  44     ISSN:  0273-1223     ISO Abbreviation:  Water Sci. Technol.     Publication Date:  2001  
Date Detail:
Created Date:  2002-01-23     Completed Date:  2002-06-25     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9879497     Medline TA:  Water Sci Technol     Country:  England    
Other Details:
Languages:  eng     Pagination:  435-40     Citation Subset:  IM    
Affiliation:
PBS&J, Orlando, FL 32810-6101, USA.
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MeSH Terms
Descriptor/Qualifier:
Biodegradation, Environmental
Ecosystem*
Nitrogen / metabolism*
Phosphorus / metabolism*
Plants*
Water Movements
Water Purification / methods*
Chemical
Reg. No./Substance:
7723-14-0/Phosphorus; 7727-37-9/Nitrogen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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