600 mL of slurry was added to each digester for each replicate. The digesters were flushed with argon gas prior to sealing. Gas bag was fixed to each digester to collected biogas evolved.
600 mL of slurry was added to each digesterfor each replicate. The digesters were flushed with argongas prior to sealing. Gas bag was fixed to each digester to collectedbiogas evolved.