Environmental Engineering Reference
In-Depth Information
Table 9.4
Mean total K removed (all values in g m
-2
)
Cattail
Rush
Maidencane
Inorganic
Mixture
Waste
Inorganic
Mixture
Waste
Inorganic
Mixture
Waste
Date
Mean
SD
Mean
SD
Mean SD
Mean SD Mean SD Mean SD
Mean
SD
Mean
SD
Mean
SD
08/20/2001 66.9
bc
∗
173.2
a
201.3
a
13.8
cd
11.2
d
2.9
d
18.0
cd
78.1
b
56.2
bcd
31.0
82.3
74.0
2.8
3.4
2.8
13.7
17.5
26.5
10/15/2001 60.0
bc
160.4
a
105.6
ab
53.2
6.3
cd
24.0
cd
1.8
d
17.2
cd
45.6
cd
37.6
cd
52.4
87.3
2.4
12.1
1.0
2.5
5.1
10.8
39.4
a
62.9
a
7.8
a
03/14/2002 -
-
-
-
-
-
26.5
73.8
2.7
-
-
-
-
-
-
06/03/2002 213.5
a
109.6
abc
158.3
ab
50.6
56.6
bc
35.4
bc
2.8
c
105.9
abc
98.5
abc
56.5
bc
141.8
111.0
43.9
31.0
1.7
78.3
17.1
30.6
07/29/2002 158.2
a
76.3
ab
86.9
ab
4.2
b
56.8
b
77.9
ab
36.1
b
107.5
72.1
52.8
2.8
-
-
-
-
38.1
20.3
13.1
09/30/2002 41.4
ab
18.8
ab
10.4
b
6.7
b
24.3
ab
62.9
a
36.4
ab
26.2
-
7.8
9.2
-
-
-
-
13.6
33.1
20.1
540.0
a
538.3
a
562.5
a
127.0
cd
133.5
cd
15.3
d
222.2
bcd
363.0
abc
222.8
bcd
Totals
∗
Letters denote T tests-Least Significant Difference (LSD) in the same row. Where letters are the same, means are not significantly different at the 0.05 level.
