Digestion of bio-waste - GHG emissions and mitigation potential

Table 4 Investigated AD plants differed to kind of digestate and considered GHG credits (marked with ‘x’)

	Kind of digestate	Solid digestate				Liquid digestate
		Substitution of mineral fertilizer	Substitution of peat	Humus accumulation	Humus reproduction	Substitution of mineral fertilizer	Humus reproduction
1	Fresh compost	x	-	x	x	-	-
2	Finished compost	x	x	x	x	-	-
3	Solid digestate (separated)	x	-	-	x	-	-
4	Liquid digestate	x	-	-	x	x	x
5	Separated digestate without post-composting	x	-	-	x	x	x
6^a	Solid digestate	x		-	x	-	-
7	Fresh and finished compost	x	x	x	x	-	-
8	Fresh and finished compost	x	x	x	x	x	x
9^b	Finished compost	x	x	x	x	x	x
10	Finished compost	x	x	x	x	-	-
11	Fresh and finished compost	x	x	x	x	-	-
12	Finished compost	x	x	x	x	-	-

^aAssumption according to plant no. 5 (no data available). ^bAssumption according to plant no. 8 (no data available).

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