The system was also
inoculated with a rinse solution from the forest residues (50.5 g
wood chips of forest residues rinsed with 400mL 0.9% NaCl) in
order to add new microorganisms which had different capability
for degradation of organic compounds. In order to investigate the
effect of the yeast extract addition, the amount of yeast extract was
increased from 1 g/L to 2 g/L in the synthetic dye mixture. The effect
of the wastewater flow rate was also tested by increasing the rate
from 0.351 mL/min to 0.803 mL/min.