Environmental Engineering Reference
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5.3.2.3 Hg 0 Adsorption Ability of Modified Bentonite
After modification, the Hg 0 adsorption ability of bentonite improved greatly. The
Hg 0 adsorption ability of bentonites treated by dipping into active MnO 2 and FeCl 3
were much improved compared to other modified zeolites (Fig. 5.12 and Fig. 5.13).
100
80
60
40
20
Treated bentonite
Bentonite
0
0 0 0 0 0 0 0 0
Time (min)
Fig. 5.12 Hg 0 adsorption ability of bentonite treated by dipping into active MnO 2
100
90
80
70
60
50
Treated bentonite
Bentonite
40
0
20
40
60
80
Time (min)
Fig. 5.13 Hg 0 adsorption ability of bentonite treated by dipping into FeCl 3
5.3.2.4 Hg 0 Adsorption Ability of Modified Vermiculite
There was a great improvement in the Hg 0 adsorption ability of vermiculite after
modification. The Hg 0 adsorption ability of vermiculites treated by dipping into
active MnO 2 and FeCl 3 were also much improved compared to other modified
zeolites (Fig. 5.14 and Fig. 5.15).
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