figure
Figure 5b: This figure represents the result of the method bringing the height of the sludge in the graduated cylinder as quickly as possible to different volumes values (Vasc=VGD). One sees that the straight slopes for treated AS ( image) and untreated sludge ( image) are now distinct. K( image)=3.53 ± 0.45 m/h ; r=0.97 / K( image)=2.50 ± 0.28 m/h ; r=0.98.