Immobilization of Lead and Nickel Ions from Polluted Yam Peels Biomass Using Cement-Based Solidification/Stabilization Technique

Table 6

Leaching test results.

Brick composition	Leachate (ppm)	Environmental policy
5% YP-Pb(II)	0.082	0.5
10% YP-Pb(II)	0.145	0.5
5% YP-Pb(II), replica	0.054	0.5
10% YP-Pb(II), replica	0.155	0.5
5% YP-Ni(II)	0.201	2
10% YP-Ni(II)	0.268	2
5% YP-Ni(II), replica	0.241	2
10% YP-Ni(II), replica	0.307	2