Application of Biochar in the Remediation of Contaminated Soil with High Concentration of Lead and Zinc

Table 3

Testing program for the contaminated soil before and after the treatment.

Binder type	Binder content (%)	Standard curing time (d)	Testing programs
Untreated	—	0	pH, EC, soil fertility (N, P, K, CEC, and organic content), TCLP, and phytotoxicity property (GI)
Biochar	5%, 8%, 10%	56
PC