Health & Environmental Research Online (HERO)


Print Feedback Export to File
4510198 
Journal Article 
Efficiency of Oxidation Ponds in Wastewater Treatment 
Mtethiwa, AH; Munyenyembe, A; Jere, W; Nyali, E 
2008 
Yes 
International Journal of Environmental Research
ISSN: 1735-6865
EISSN: 2008-2304 
University of Tehran, P.O. Box: 14155-6135 Tehran 
2 
2 (Apr 2008) 
149. 
WOS:000256018900006 
Efficiency of oxidation ponds in wastewater treatment was measured. Water samples from the effluent discharging points in the maturation ponds were collected and analysed in the laboratory for biochemical oxygen demand (BOD), coliform bacteria, total nitrogen (TN), phosphorous and chlorophyll-a. It was suggested that just like Kauma oxidation ponds, most oxidation ponds did not fully treat the water to standard hence discharged water with high concentration of BOD, Coliform bacteria, Total Phosphorous, Total Nitrogen and Turbidity. The concentrations of these substances did not comply with the guidelines of World Heath Organisation. It was recommended that there must be close monitoring of the treatment processes, redesigning of treatment plants to include re-circulation of the untreated water or by providing a constructed wetland or tertiary treatment system which would ensure further treatment of the effluent before being discharged. 
DISSOLVED OXYGEN; PHYTOPLANKTON; WASTEWATER TREATMENT; BIOCHEMICAL OXYGEN DEMAND; WATER QUALITY STANDARDS; OXIDATION; COLIFORM BACTERIA; WATER SAMPLING