Table 3.

Bioremediating efficiency of prepared anodes for metal ions from synthetic wastewater via BMFCs energized by local sweet potato waste.

Electrodes		Target Metal	Inoculation Source	Initial Concentration (ppm)	Operational Time (Days)	Remediation Efficiency (%)	MCL (ppm)
Anode	Cathode						MMOH	WHO
GO	Graphite rod	Cd (II)	Synthetic wastewater	100	0	0.00	1	0.05
					10	14.01
					20	23.09
					30	44.91
					40	55.00
GO-PANI	Graphite rod				0	0.00
					10	22.99
					20	36.88
					30	52.02
					40	65.51
GO	Graphite rod	Pb (II)	Synthetic wastewater	100	0	0.00	0.01	0.05
					10	10.32
					20	17.99
					30	35.54
					40	53.50
GO-PANI	Graphite rod				0	0.00
					10	16.01
					20	29.09
					30	48.69
					40	60.33

MCL = Maximum contaminant level; MMOH = Malaysian Ministry of Health; WHO = World Health Organization, Data received from reference [48,49].