the ethanol productivity in using pretreated paper sludge (1.27 g/L/h, 24 h) was about 3-fold compared to that obtained in using raw paper sludge (0.424 g/L/h, 48 h).
the ethanol productivity in using pretreated paper sludge (1.27 g/L/h, 24 h) was about 3-fold compared to that obtained inusing raw paper sludge (0.424 g/L/h, 48 h).