The Potential of Wetlands as Treatment Systems for Organic Matter and Some Selected Metals (As, Ca, Cd, Cr, Cu, Fe, K, Mg, Mn, Na, Pb, and Zn): Case Study of Yitamot Wetland, Ethiopia

Table 4

Percentage of pollutant removal efficiency using Yitamot wetland.

Pollutant (mg/L)	Inlet	Outlet	Removal efficiency (%)
Mn	0.11	nd	>99.99
COD	207.00	5.25	97.46
Cr	0.43	0.15	64.59
Cu	1.20	0.59	50.48
Fe	0.81	0.41	48.93
Na	14.91	12.15	18.55
Zn	1.69	1.47	12.88
K	4.76	4.48	5.88
As	0.40	0.38	5.56
Ca	46.26	52.98	-14.53
Mg	4.20	5.90	-40.41
Pb	nd	nd	nd
Cd	nd	nd	nd

nd = not detected.