The BMP results for mono-digestion of Ulva are illustrated in
Fig. 4. Table 6 outlines a comparison of the BMP results with theoretical
methane production. The yields are significantly lower
than theoretical maximum potential suggested by use of the Buswell
equation. For the unwashed samples (samples 1 and 2) the
BMP achieved 42% and 36% of theoretical value respectively. The
fresh sample generated a higher value than the wilted sample.
The washed samples exhibited a higher methane yield with sample
3 (washed and dried) generating the highest yield at 250 L CH4/
kg VS (64% of the theoretical value).