Design and Performance of Experimental Constructed Wetlands in Uganda, Planted with Cyperus Papyrus and Phragmites Mauritianus
Autor: | J. J. A. van Bruggen, G. B. J. Rijs, T. O. Okurut |
---|---|
Rok vydání: | 1999 |
Předmět: | |
Zdroj: | Water Science and Technology. 40:265-271 |
ISSN: | 1996-9732 0273-1223 |
DOI: | 10.2166/wst.1999.0171 |
Popis: | The viability of the use of constructed wetlands planted with indigenous Cyperus papyrus and Phragmites mauritianus plants for the purification of pre-settled municipal wastewater in tropical environments was investigated in concrete lined constructed wetlands for a period of 11 months. BOD and total suspended solids concentrations in the effluents from both systems were below 20 mg/l and 25 mg/l, respectively. In the C. papyrus systems, the removal rates for COD, NH4+ and o-PO4− averaged to 3.75, 1.01 and 0.05 (g/m2.day), respectively. In P. mauritianus units, the rates were 1.52, 0.97 and 0.068 (g/m2.day), respectively. A high degree of faecal coliform removal was attained at longer retention times in the two systems. |
Databáze: | OpenAIRE |
Externí odkaz: |