Olukanni, D. O. and Kokumo, Kola O. PERFORMANCE EVALUATION OF A CONSTRUCTED WETLAND SYSTEM IN NIGERIA. In: IWA Specialist Group on Wetland Systems for Water Pollution Control.
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Abstract
The practice of collecting and treating municipal wastewater at low cost prior to its disposal is continually gaining attention in developing countries. This is because the consequences due to its poor management have become enormous while solutions are being proffered at various quarters. Among the current processes used for wastewatere treatment, constructed wetlands have attracted interest as the unit process of choice for its treatment due to their low cost and efficient operation in tropical regions. The aim of this study is to assess the efficiency of a constructed wetland [water hyacinth reed bed (WHRB)] and to investigate the impact of the hydraulic structures on the treatment system. This study also involves determining the efficiency of water hyacinth in polishing biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), phosphate, magnesium, zinc, nitrate, chloride, sulphate, potassium, pH and fecal coliform. Two samples each were collected and tested from the six WHRB reactors available at Covenant University. The wetland achieved a performance of 70% of BOD-, 68% of COD-, 41% of Total Solids (TS)-, 100% of zinc, 30% of nitrate, 38% of chloride, 94% of sulphate, and 2% of potassium-removal, respectively. The result also shows a 6%, 29% and a significant increase, in pH, phosphate and magnesium, respectively. The study shows that constructed wetlands are capable of polishing wastewater generated in a community and the data obtained would also allow the sustainability of the technology to be assessed
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Subjects: | T Technology > T Technology (General) T Technology > TA Engineering (General). Civil engineering (General) |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Civil Engineering and the Environment |
| Depositing User: | Mrs Hannah Akinwumi |
| Date Deposited: | 06 Sep 2017 14:34 |
| Last Modified: | 06 Sep 2017 14:34 |
| URI: | http://eprints.covenantuniversity.edu.ng/id/eprint/9185 |
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