Table 5.

Retention of heavy metals after 17 h of batch tests.

Elements	Initial concentration of heavy metals, mg/L	Retention on Technosols, %
		Technosol 1 99.5% soil + 0.5% MCNPs	Technosol 2 99% soil + 1% MCNPs	Negative Control (only soil)
Cu	3.51	98	98	95
Cd	0.17	83	82	82
Zn	23.61	97	98	93
Pb	1.18	100	100	100