Environmental Engineering Reference
In-Depth Information
Table 9.3
Mean total P 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 9.3
c
∗
24.1
a
28.3
a
2.5
d
3.3
d
0.7
d
2.6
d
18.2
b
12.3
bc
4.4
7.8
8.8
0.7
0.5
0.5
1.7
2.0
3.6
10/15/2001 7.7
bcde
19.8
a
14.3
ab
1.0
ef
3.7
cdef
0.3
f
2.5
def
10.1
bc
8.5
bcd
6.9
9.6
6.8
0.4
1.4
0.2
0.8
2.1
1.5
5.3
a
8.3
a
1.3
a
03/14/2002 -
-
-
-
-
-
3.8
8.3
0.5
-
-
-
-
-
-
06/03/2002 23.4
a
9.7
abc
22.5
ab
8.4
bc
6.3
c
0.9
c
13.0
abc
22.3
ab
13.3
abc
16.4
10.2
8.7
6.1
4.5
0.6
9.7
2.8
6.3
07/29/2002 16.5
a
6.9
bc
12.9
ab
0.6
c
6.3
bc
13.6
ab
5.7
bc
11.5
5.6
7.1
0.4
-
-
-
-
4.4
2.9
2.0
09/30/2002 4.9
ab
1.5
b
1.1
b
1.0
b
2.7
b
11.8
a
7.8
ab
3.2
-
0.5
1.2
-
-
-
-
1.4
6.1
3.6
61.8
abc
62.0
abc
79.1
a
18.8
f
21.6
ef
3.2
f
27.1
def
76.0
ab
47.6
cde
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.
