3.3. Hydrolysis and acidification and methanogenesis
The courses of COD hydrolysis and acidification processes
in the three reactors over the period of operation form P1,
to P2 and P3 are presented in Table 2 and Figure 3. During
the present experiment, biogas was not collected due to low
strength influent and biogas dissolution. However, SMAs of
all reactor sludges were determined with and without different
substrates (nutrient solution and influent) at 35◦C. The
data show that the CODdis in the effluent was mainly in the