Developing a Pilot Scale Horizontal Sub Surface Flow Constructed Wetlands for Phytoremediation of Primary Lagoon Effluents

Oluseyi Elizabeth Ewemoje (1) , Abimbola Sangodoyin (1)

1 Department of Agricultural and Environmental Engineering

Wastewater discharge is a threat to nature, causing eutrophication and water borne diseases. The situation is getting worse with rapid urbanization where adequate sanitation and wastewater treatment facilities are lacking. Constructed wetlands (cw) are designed to mimic natural wetlands with much degree of control. Despite recognizing cw as an alternative for conventional wastewater treatment, little has been done in developing countries. This study aims at developing a pilot scale horizontal subsurface flow cw for treatment of primary lagoon effluent. Experimental set - up would consist of three vegetated cells and one non-vegetated cell control. Cells would be packed with 5-10mm diameter pea gravel while 20-50mm diameter pea gravel will be used at the inlet and outlet areas to prevent clogging. Hydraulic residence time (HRT), shall be established from previously published research. Sampling shall be done twice a month for a period of 2 years. SPSS software shall be used for statistical analysis.

Mots clés: Constructed wetlands; Wastewater effluents; Treatment; Developing countries

Domaines: Environnement et Société

Oluseyi Elizabeth Ewemoje, Abimbola Sangodoyin. Developing a Pilot Scale Horizontal Sub Surface Flow Constructed Wetlands for Phytoremediation of Primary Lagoon Effluents. 11th edition of the World Wide Workshop for Young Environmental Scientists (WWW-YES-2011) - Urban Waters: resource or risks?, Jun 2011, Arcueil, France. ⟨hal-00607955⟩