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

Table 1

Physical properties of leachate.

Physical property	Index	Physical property	Index
Color	Yellow-dark gray-purple black	Organic acid (mg/L)	50–25000
Smell	Stink	pH	5.2–8.5
Total residue (mg/L)	2300–36000	Total hardness	3000–10000
Conductivity (μΩ/cm)	10–26000	Oxidation-reduction potential (mV)	320–800