Evaluation of Occurrence, Concentration, and Removal of Pathogenic Parasites and Fecal Coliforms in Three Waste Stabilization Pond Systems in Tanzania

Table 1

Physicochemical characteristics of influents and effluents of wastewater of the three WSP systems.

Parameter	Morogoro WSPs			Mwanza WSPs			Iringa WSPs
	Inf	Eff	% removal	Inf	Eff	% removal	Inf	Eff	% removal
COD (mg/L)	420	200	52.4	575	215	63	815	235	71.2
TSS (mg/L)	135	57	58	311	105	66	494	154	69
TN (mg/L)	39	32	19	57	38	33	65	52	19
pH	7.5	8.3		7.4	8.2		7.0	8.1
Temperature (°C)	29	29		28	30		23	28

Note. COD = chemical oxygen demand; TSS = total suspended solids; TN = total nitrogen; Inf = influents; Eff = effluents.