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

Table 5

Compositions of artificial leachate.

Composition	Content (mg/L)
NH4-N^5	1333
CODcr^6	13333
BOD5^6	6000
Total Hg^7	1.3
Total Pb^7	20

Note. The concentration of NH₄-N was measured by the low concentration nitrogen oxide detector. The concentration of COD_cr and BOD₅ was measured by liquid chromatograph. The concentration of total Hg and total Pb was measured by the atomic absorption spectrophotometer. The instrument details are listed in Table 6.