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

Table 9

Output leachate pollutant concentrations.

Composition	A0 (mg/L)	A1 (mg/L)	A2 (mg/L)	A3 (mg/L)	A4 (mg/L)
NH4-N^5	563.3	346.1	278.2	172.1	193.2
CODcr^6	305.1	183.2	150.5	90.3	136.4
BOD5^6	50.2	31.5	20.3	18.7	23.6
Total Hg^7	0.03	0	0	0	0
Total Pb^7	0.08	0.03	0	0.02	0