PERFORMANCE OF A CONSTRUCTED WETLAND SYSTEM FOR THE TREATMENT OF DOMESTIC WASTEWATER.

The efficiency of a vertical-flow constructed wetland was investigated for the treatment of domestic wastewater from a rural area in Turkey. The constructed wetland was planted with Phragmites communis and Typhia latifolia. In this study, the removal efficiency of chemical oxygen demand (COD), five-days biochemical oxygen demand (BOD5), total suspended solids (TSS), ammonium-nitrogen (NH4+-N), and nitrate-nitrogen (NO3 -N) were measured for a period of 7 months. The gravel-filled wetland was operated with a flow-rate of 45 m3.day-1 of domestic wastewater at a hydraulic loading rate of 129 m3.day-1. According to the results, an average percent removal of contaminants from the wetland was found as follows: COD, 48-94%; BOD5, 72-96%; TSS, 94-98%; NH4+-N, 68-87%. Based on the results obtained, wetlands might be an applicable system for the treatment of domestic wastewater releasing from rural areas. [ABSTRACT FROM AUTHOR]

Copyright of Fresenius Environmental Bulletin is the property of PRT-Parlar Research & Technology and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)