Table 2.

Characterization of the sludge for anaerobic biodegradation test and original sludge.

	Sludge in the tank of the Yamada Biomass Plant	35 °C	55 °C
Total solid concentration (%)	3.58	2.24	2.07
Volatile solids (%)	2.03	1.11	1.03
Total organic carbon (%)	0.98	0.38	0.37
Total nitrogen (%)	0.30	0.24	0.24
C/N ratio	3	2	2
pH	8.3	8.3	8.5