Environmental Engineering Reference
In-Depth Information
TABLE 8.1
Data from Transects TEPA-1 and TEPA-2 through Pilot PRBs and Transects TEPA-5 and TEPA-6 through Full-Scale PRB
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
5.17
7.34
21.0
32.8
6.94
14.1
17.9
30.1
mmol L
−1
yr
−1
Fe removed
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
115
3
− 90
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
.
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