Floating treatment wetlands for domestic wastewater treatment

Floating treatment wetlands for domestic wastewater treatment.

Floating islands are a form of treatment wetland characterized by a mat of synthetic matrix at the water surface into which macrophytes can be planted and through which water passes. We evaluated two matrix materials for treating domestic wastewater, recycled plastic and recycled carpet fibers, for chemical oxygen demand (COD) and nitrogen removal. These materials were compared to pea gravel or...

Pollutant removal by Canna Generalis in tropical constructed wetlands for domestic wastewater treatment

Constructed wetlands have not been commonly used in Vietnam due to the lack of information in the selection of proper types of constructed wetlands, type of reeds, design parameters and performance efficiency, in tropical climates. This paper focuses on Canna generalis, which is a common reed and easy to grow both in water and wet land conditions. Two kinds of hybrid constructed wetlan...

Localized domestic wastewater treatment: part I - constructed wetlands (an overview)

Constructed wetlands (CW) are an alternative localized treatment technology suitable for reducing BOD, COD, NPK and pathogens to acceptable levels for subsequent use of treated water, especially for irrigation. Dissolved chemicals and heavy metals are also reduced to an extent. CWs are extensively used in developed countries for secondary and tertiary treatment of domestic sewage and treatment ...

Constructed Wetlands for Wastewater Treatment

Treatment Efficiencies of the Vertical Flow Pilot-Scale Constructed Wetlands for Domestic Wastewater Treatment

To foster the practical development of the constructed wetlands used for water quality enhancement in Turkey, 2 vertical subsurface flow pilot-scale constructed wetlands were implemented on the METU campus, Ankara, Turkey. Both of the wetlands were planted with Phragmites australis and operated identically at a flowrate of 3 m3.d−1 and a hydraulic loading rate (HLR) of 0.100 m.d−1, intermittent...