Microbiological Evaluation of the Effectiveness of Sewage Sludge Sanitization with Solar Drying Technology

Table 6

Values of parameters that determine the way of using sewage sludge [11].

Number	Parameter		Type of reuse
		Reuse in agriculture and agricultural land reclamation	Reuse for nonagricultural land reclamation	Reuse for the cultivation of plants destined for compost production; reuse for the cultivation of plants which are not destined for consumption and fodder production
1	Cadmium Cd [mg × kg^−1 DM]	20	25	50
2	Copper Cu [mg × kg^−1 DM]	1000	1200	2000
3	Nickel Ni [mg × kg^−1 DM]	300	400	500
4	Lead Pb [mg × kg^−1 DM]	750	1000	1500
5	Zinc Zn [mg × kg^−1 DM]	2500	3500	5000
6	Mercury Hg [mg × kg^−1 DM]	16	20	25
7	Chromium Cr [mg × kg^−1 DM]	500	1000	2500
8	Number of Salmonella [cfu × 100 g^−1]	0	u*	u
9	ATT [egg × kg^−1 DM]	0	≤300	≤300

*Undefined.