A Comprehensive Review on Thermal Coconversion of Biomass, Sludge, Coal, and Their Blends Using Thermogravimetric Analysis

Table 4

Elemental and chemical composition of sewage sludge.

Year	Sewage sludge	Proximate analysis				Ultimate analysis					HV	Biochemical composition		Ref.
		M (%)	VM (%)	FC (%)	Ash (%)	C (%)	H (%)	N (%)	S (%)	O (%)	MJ/kg	Protein	Extr.
2017	Municipal	5.1	60.34	1.13	33.43	36.88	4.94	5.03	1.14	52.01	14.90	—	—	[90]
2017	Wastewater treatment plant	7	50	3	40	27.9	4.7	4.5	1.4	34.6	12.50	28	3.5	[84]
2016	Wastewater treatment plant	5.6	54.2	8.6	37.2	40.6	7.1	7.7	3.3	41.2	11.1	—	—	[91]
2016	Wastewater treatment plant	7.4	63.1	7.1	22.5	38.0	5.1	6.9	1.2	19.0	—	—	—	[92]
2016	Wastewater treatment plant	5.8	54.1	6.0	34.2	34.9	4.8	4.5	1.1	14.8	—	—	—	[93]
2015	Wastewater treatment plant	8.71	61.11	9.20	26.89	45.16	7.20	7.69	—	27.59	16.18	—	—	[94]
2014	Wastewater treatment plant	4.43	68.57	16.42	15.01	53.24	7.39	6.12	—	33.25	24.2	—	—	[95]