Cumulative 7-Year Average
2010 Data
TEPA-1
TEPA-2
TEPA-5
TEPA-6
TEPA-1
TEPA-2
TEPA-5
TEPA-6
pH (A/B)
3.18
3.11
3.11
2.99
3.15
3.06
3.21
3.14
pH (C/D)
6.04
6.31
6.45
6.43
5.53
6.30
6.49
6.52
Al (A/B)
103
192
222
511
91
210
234
448
Al (C/D)
2.30
0.35
0.12
0.18
9.62
0.34
0.13
0.10
% Al removed
97.8
99.8
99.9
100.0
89.4
99.8
99.9
100.0
mmol L −1
yr −1
Al removed
34.1
64.7
75.1
173
27.5
70.9
79.0
151
Fe (A/B)
67.3
90.3
138
211
59.1
105
133
201
Fe (C/D)
35.6
45.2
8.97
9.46
16.5
18.3
23.4
16.4
% Fe removed
47.1
49.9
93.5
95.5
72.1
82.6
82.4
91.8
mmol L −1
yr −1
Fe removed
5.17
7.34
21.0
32.8
6.94
14.1
17.9
30.1
Fe
+Al + Mn
+ pH acidity (A/B)
758
1302
1561
3307
676
1429
1618
2937
Fe
+Al + Mn
+ pH acidity (C/D)
135
148
72
74
139
106
98
90
% acidity removed
89.0
93.3
98.9
99.4
86.4
97.4
97.2
99.0
Alkalinity (C/D)
533
814
981
1124
344
155
477
1100
Net alkalinity (C/D)
398
666
909
1050
205
49
379
1010
H
2 S (C/D)
0.95
6.92
1.09
3.67
1.38
23.9
0.70
5.40
SO
4 (A/B)
1649
2761
3155
6874
1835
3360
3920
6435
SO
4 (C/D)
404
1245
299
692
770
2845
359
1465
% SO
4 removed
75.5
54.9
90.5
89.9
58.1
15.3
90.9
77.2
mmol L −1
a −1
SO
4 removed
118
144
271
587
101
49.0
338
472
DOC (A/B)
4.04
4.79
15.2
16.0
6.51
9.64
21.2
25.6
DOC (C/D)
19.0
30.6
55.2
69.9
9.28
22.9
16.3
32.9
E
H (A/B) in mV
547
545
481
436
587
556
328
300
E
H (C/D)
127
14
69
–3
87
− 90
115
3
Ca (A/B)
52.1
93.1
93.2
129
64.3
94.3
124
153
Ca (C/D)
193
351
245
290
176
606
174
433
Note:
All concentrations are in mg/L; E
H as mV; acidity as mg/L CaCO
3 equivalents; alkalinity as mg/L CaCO
3 .
B
R
e P
l
a
c
S
-
l
l
u
h F
g
u
o
r
h
6 t
-
A
P
E
d T
n
5 a
-
A
P
E
s T
t
c
e
s
n
a
r
d T
n
s a
B
R
t P
o
l
i
h P
g
u
o
r
h
2 t
-
A
P
E
d T
n
1 a
-
A
P
E
s T
t
c
e
s
n
a
r
m T
o
r
a f
t
a
TABLE 8.1
D
Organic-Based PRBs for the Treatment of Heavy Metals, Arsenic, and Acidity 139
2010 Data
TEPA-1
TEPA-2
TEPA-5
TEPA-6
TEPA-1
TEPA-2
TEPA-5
TEPA-6
pH (A/B)
3.18
3.11
3.11
2.99
3.15
3.06
3.21
3.14
pH (C/D)
6.04
6.31
6.45
6.43
5.53
6.30
6.49
6.52
Al (A/B)
103
192
222
511
91
210
234
448
Al (C/D)
2.30
0.35
0.12
0.18
9.62
0.34
0.13
0.10
% Al removed
97.8
99.8
99.9
100.0
89.4
99.8
99.9
100.0
mmol L −1
yr −1
Al removed
34.1
64.7
75.1
173
27.5
70.9
79.0
151
Fe (A/B)
67.3
90.3
138
211
59.1
105
133
201
Fe (C/D)
35.6
45.2
8.97
9.46
16.5
18.3
23.4
16.4
% Fe removed
47.1
49.9
93.5
95.5
72.1
82.6
82.4
91.8
mmol L −1
yr −1
Fe removed
5.17
7.34
21.0
32.8
6.94
14.1
17.9
30.1
Fe
+Al + Mn
+ pH acidity (A/B)
758
1302
1561
3307
676
1429
1618
2937
Fe
+Al + Mn
+ pH acidity (C/D)
135
148
72
74
139
106
98
90
% acidity removed
89.0
93.3
98.9
99.4
86.4
97.4
97.2
99.0
Alkalinity (C/D)
533
814
981
1124
344
155
477
1100
Net alkalinity (C/D)
398
666
909
1050
205
49
379
1010
H
2 S (C/D)
0.95
6.92
1.09
3.67
1.38
23.9
0.70
5.40
SO
4 (A/B)
1649
2761
3155
6874
1835
3360
3920
6435
SO
4 (C/D)
404
1245
299
692
770
2845
359
1465
% SO
4 removed
75.5
54.9
90.5
89.9
58.1
15.3
90.9
77.2
mmol L −1
a −1
SO
4 removed
118
144
271
587
101
49.0
338
472
DOC (A/B)
4.04
4.79
15.2
16.0
6.51
9.64
21.2
25.6
DOC (C/D)
19.0
30.6
55.2
69.9
9.28
22.9
16.3
32.9
E
H (A/B) in mV
547
545
481
436
587
556
328
300
E
H (C/D)
127
14
69
–3
87
− 90
115
3
Ca (A/B)
52.1
93.1
93.2
129
64.3
94.3
124
153
Ca (C/D)
193
351
245
290
176
606
174
433
Note:
All concentrations are in mg/L; E
H as mV; acidity as mg/L CaCO
3 equivalents; alkalinity as mg/L CaCO
3 .
B
R
e P
l
a
c
S
-
l
l
u
h F
g
u
o
r
h
6 t
-
A
P
E
d T
n
5 a
-
A
P
E
s T
t
c
e
s
n
a
r
d T
n
s a
B
R
t P
o
l
i
h P
g
u
o
r
h
2 t
-
A
P
E
d T
n
1 a
-
A
P
E
s T
t
c
e
s
n
a
r
m T
o
r
a f
t
a
TABLE 8.1
D
Organic-Based PRBs for the Treatment of Heavy Metals, Arsenic, and Acidity 139