Microbial reduction of hexavalent chromium by landfill leachate
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Transcript of Microbial reduction of hexavalent chromium by landfill leachate
30 40 50 60 70 80
(222 ) (311)
(220)
(200)
(g)
(111)
2 Theta (o)
(f)
(e)
(d)
(c)
(b)
(a)
Inte
nsity (
a.u
.)
200 40 0 60 0 80 0
320
350710
695385
310
560
500
520
580
(c)
H2 C
on
sum
ptio
n (
a.u
.)
(i)
(h)
(g)
(f)
(e)
(d)
(b)(a)
Tempe rature (oC)
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TC
D S
ign
al (a
.u.)
Tem perature (ο
C)
2.5 % Ni-S iO2
5 % Ni-MCM- 41( Na)
5 % Ni-M CM-4 1
5 % Ni-MCM(Al)-41
500 600 70 0 80 0
0
20
40
60
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100
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Meth
an
e C
on
ve
rsio
n (
%)
Temperature (oC)
(a)
(b)
(c)
(d)
(e)
Temper ature (oC)
(f)
(g)
(h)
Temperature (oC)
(i)
(j)
(k)
500 60 0 700 800
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.2
2.4
500 600 700 800 500 60 0 70 0 800
(a)
(b)
(c)
H2/C
O r
atio
Temperature (oC)
(d)
(e)
(f )
Temperature (oC)
(g)
(h)
(i)
Temperature (oC)
Ni-MCM(Na)-41
Ni-MCM-41
Ni-MCM(Al)-41
2.5 % Ni
5 % Ni
10 % Ni
Carbon Deposition (%)
121086420
