Research on co-disposal and utilization of ferrous packaging containers contaminated with hazardous wastes by steel converter

Table 4 Mean values of the leaching concentrations of studied metals in solid waste (unit: mg L⁻¹)

Metal element	Hg	Cd	Ni	Pb	Cr^a	Cr^b	As	Cu	Zn
Steel slag	0.03	0.03	0.38	0.12	0.30	0.03	0.04	0.05	0.04
Dust	0.03	0.04	0.21	0.37	0.41	0.04	0.03	0.06	0.43
Mud cake	0.04	0.05	0.30	0.45	0.39	0.04	0.05	0.05	0.59
Chinese National Standard (GB5085.3–2007)	0.1	1	5	5	15	5	5	100	100

ISSN: 2468-2039