A Comprehensive Study on the Physicochemical Characteristics of Faecal Sludge in Greater Accra Region and Analysis of Its Potential Use as Feedstock for Green Energy

Table 3

Summary results for ionic composition of the faecal sludge.

Parameter	Unit	Public				Private				Composite
		Mean	SD	Min	Max	Mean	SD	Min	Max	Mean	SD	Min	Max	% cont
	mg/L	1.62	0.45	<1	1.75	1.10	0.61	<1	1.25	1.45	0.51	<1	1.58	0.065
Cl^-	mg/L	950	12.5	783	1030	668	11.4	540	754	895	10.89	658	994	39.895
	mg/L	0.12	0.52	0.07	0.14	0.09	0.54	<0.06	0.08	0.08	0.61	<0.06	0.11	0.004
	mg/L	0.88	0.49	0.68	0.95	0.48	0.55	0.45	0.54	0.75	0.42	0.60	0.86	0.033
K+	mg/L	750	18.9	712	890	615	21.5	589	635	712	52.4	698	830	31.738
Na+	mg/L	578	50.8	501	601	498	71.5	445	550	531	68.9	495	589	23.670
Mg2+	mg/L	12.35	3.2	10.1	13.1	10.44	5.2	9.4	11.05	11.1	4.6	9.8	12.7	0.495
Ca2+	mg/L	98	10.08	85	112	78	10.14	64	85	92	9.89	72	102	4.101