Application of a Bentonite Slurry Modified by Polyvinyl Alcohol in the Cutoff of a Landfill

Table 2

Composition of leachate.

Composition	Range	Physical property	Range
Chemical oxygen demand (CODcr) (mg/L)	500–85000	Suspended solids (SS) (mg/L)	200–1000
Total organic carbon (TOC) (mg/L)	1500–22000	Total phosphorus (TP) (mg/L)	0.8–72
Biology oxygen demand (BOD5) (mg/L)	50–19000	SO^4−(mg/L)	10–750
NH^3−-N (mg/L)	20–7400	Cl^−(mg/L)	180–3250