4.1. Heavy and light metal concentrations in plant wastes and
biogas production
The composition of processed materials has to be determined
during the design of various technological processes. The
maximum and minimum concentrations of selected compounds
vary in different rawmaterials, and they have to be determined due
to differences in the origin and the intended use of recycled wastes.
Heavy and light metal concentrations in the evaluated waste
samples are presented in Tables 3 and 4, and the content of light
metals in the analyzed samples e in Table 5. Mean values (X),