Table 3. Proximate and ultimate analysis of the moisture-free fecal sludge samples (Avg +/- St. Dev).

N is the number of replicates analyzed. HHV (higher heating value), LHV (lower heating value).

	Coimbatore	Tiruppur
Proximate Analysis	N = 2	N = 11
Ash (%)	69.3 ± 12.9	39.0 ± 12.8
Volatile Matter (%)	26.5 ± 8.8	47.7 ± 9.9
Fixed Carbon (%)	3.2 ± 3.5	11.4 ± 3.2
HHV [Meas] (MJ/kg)	5.4 ± 2.4	13.4 ± 3.2
Sulfur (%)	0.8 ± 0.2	1.1 ± 0.2
Ultimate Analysis	N = 2	N = 11
Carbon as C (%)	16.3 ± 6.7	33.0 ± 7.4
Hydrogen as H (%)	2.4 ± 1.2	4.7 ± 1.0
Nitrogen as N (%)	1.4 ± 0.7	3.1 ± 0.7
Oxygen as O (%)	9.7 ± 4.1	19.2 ± 4.1
Sulfur as S (%)	0.9 ± 0.2	1.1 ± 0.2
HHV [Equ 1] (MJ/kg)	6.1 ± 3.6	14.3 ± 3.7
HHV [Equ 2] (MJ/kg)	5.8 ± 3.1	13.0 ± 3.1
LHV [Equ 3] (MJ/kg)	5.2 ± 3.8	11.9 ± 2.9