Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4390117 | Ecological Engineering | 2011 | 8 Pages |
Abstract
This paper describes the activity period of an experimental hybrid wetland system placed in a cold climate region. The aim is to determine the efficiency of the system in reducing TSS, BOD5, COD and other pollutants. The constructed wetland consists of a fat-removal unit and a basin for the storage and the distribution of the wastewater which precedes three phytoremediation beds: the first two are parallel and they work as submerged vertical flow wetland with gravel medium for an area of 180 m2; the last is a submerged horizontal flow wetland with sand medium and an area of 360 m2. The CW was designed to process a total estimated BOD5 loading rate of about 24 g mâ2 dâ1, which was less than half of the average actual loading rate. The wastewater treatment did not meet the required Italian law outflow limits, most likely due to BOD5 overloading.
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Authors
Elena Comino, Vincenzo Riggio, Maurizio Rosso,