Figure 4

Mineral content evolution during composting process for Pb, Cr and Ni. Results expressed on dry matter and error bars are standard deviation of the means (n=9). Date of sample: 1 (14.07.2014), 2 (28.07.2014), 3 (11.08.2014), 4 (18.08.2014), 5 (25.08.2014), 6 (08.09.2014) , 7 (15.09.2014), 8 (22.09.2014), 9 (06.10.2014) and 10 (20.10.2014).

© De Gruyter