Anaerobic Codigestion of Municipal Wastewater Treatment Plant Sludge with Food Waste: A Case Study

Table 4

Biogas production and process performance in terms of TS, VS, and COD removal.

Feedstocks	Parameters	Period I; (0–20 d)	Period II; (20–40 d)	Period III; (40–60 d)	Period IV; (60–80 d)	Period V; (80–100 d)	Period VI; (100–120 d)
1% PF	Avg biogas
	CH4%
	TS removal%
	VS removal%
	COD removal%
	pH
2% PF	Avg biogas
	CH4%
	TS removal%
	VS removal%
	COD removal%
	pH
5% FW	Avg biogas
	CH4%
	TS removal%
	VS removal%
	COD removal%
	pH
1% GT	Avg biogas
	CH4%
	TS removal%
	VS removal%
	COD removal%
	pH
2% GT	Avg biogas
	CH4%
	TS removal%
	VS removal%
	COD removal%
	pH
100% SS	Avg biogas
	CH4%
	TS removal%
	VS removal%
	COD removal%
	pH