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Table 4 Final specific biogas (BG) and methane (CH4) yields of silage made from pure soft rush (Juncus effusus) as a single solid-state fermentation substrate. Gas yields are given in standard norm litres (LN) per kilogramme of fresh matter (FM) and per kilogramme of ash excluded organic dry matter (oDM)

From: The energy potential of soft rush (Juncus effusus L.) in different conversion routes

Substrate (replication) Resident time LN BG kg FM−1 LN BG kg oDM−1 LN CH4 kg FM−1 LN CH4 kg oDM−1
Juncus effusus (a) 43 119.98 315.23 47.34 124.38
Juncus effusus (b) 43 143.99 378.30 62.67 164.66
Juncus effusus (c) 61 218.17 573.19 94.60 248.55
Juncus effusus (d) 61 206.42 542.34 78.53 206.31
Mean (sd) 43 131.99 (12.01) 346.77 (31.54) 55.01 (7.66) 144.52 (20.14)
Mean (sd) 61 212.30 (5.88) 557.77 (15.43) 86.57 (8.04) 227.43 (21.12)