Performance Evaluation of Dry Faecal Sludge-Derived Activated Carbon (DFSAC) for Wastewater Pollutant Removal: A Case Study of the Lavender Hill Faecal Treatment Plant

Table 4

Wk 2 mean results for analyzed heavy metal concentration of Mudor and lab-scale setup effluent.

Metal		N	Mudor WWTP effluent				Recycled effluent				% Removal	EPA STD.
			Min	Max	Mean	Std. dev.	Min	Max	Mean	Std. dev.
Cu	mg/L	21	0.017	0.092	0.057	0.0265	0.002	0.021	0.015	0.005	73.68	0
Cd	mg/L	21	0.014	0.055	0.028	0.010	0.001	0.027	0.008	0.001	71.43	0.1
Zn	mg/L	21	0.018	0.026	0.022	0.002	0.004	0.015	0.010	0.003	54.55	0.5
Fe	mg/L	21	0.004	0.019	0.010	0.006	0.001	0.009	0.003	0.002	70.00	0.3
Pb	mg/L	21	0.000	0.004	0.002	0.001	0.00	0.00	0.00	0.00	100	0.1
As	mg/L	21	0.000	0.008	0.003	0.002	0.00	0.001	0.0002	0.000	93.33	0.1

Wk: week; Significance at 95% confidence level.