Evaluation of Mediterranean Agricultural Residues as a Potential Feedstock for the Production of Biogas via Anaerobic Fermentation

Table 3

Volatile solids (VS) and total solids (TS) of biomass samples before and after pretreatment with hydrothermal (HT), dilute acid (DA), and steam explosion (SE) methods.

Sample	Untreated		HT		DA		SE
	TS	VS	TS	VS	TS	VS	TS	VS
Vine pruning	95.07	91.97	98.31	96.06	98.17	98.02	93.64	90.63
Olive pruning	91.63	89.02	99.78	97.56	100.00	100.00	88.35	85.72
Almond shells	93.06	91.95	100.00	100.00	98.69	98.69	96.45	95.70