c
± σ
c
± σ
c
± σ
Compound
μg/L
Compound
μg /L
Compound
μg/L
Phenol
302
27
1-Aminonaphthalene
4.0
0.8 2-Hydroxycarbazole
3.1
0.9
Benzene a
708
165
2-Naphthol
62
6
3-Methylbenzothiophene
16
3
2-Methylphenol
338
43
1-Indanone
74
13
2-Hydroxydibenzofuran
31
5
3/4-Methylphenol
265
30
Indane
381
46
2-Methylnaphthalene
50
22
3,5-Dimethylphenol
220
40
Indane a
367
86
1-Methylnaphthalene
262
74
2,3-Dimethylphenol
48
5
1-Naphthol
63
8
Biphenyl
58
9
Toluene a
336
32
Benzothiophene
664
67
Acenaphthene
72
11
2,4/2,5-Dimethylphenol
203
30
2-Methylbenzofuran
34
3
Acenaphthylene
4.8
0.9
2,6-Dimethylphenol
136
14
1,2,3-Trimethylbenzene a
43
5
1,3-Dimethylnaphthalene
25
5
3,4-Dimethylphenol
53
5
Benzothiophene a
886
82
Anthracene
1.7
0.8
2,4,6-Trimethylphenol
57
5
Isoquinoline
15
4
1,6-Dimethylnaphthalene
11
3
2,3,6-Trimethylphenol
26
2
Acridine
1.9
0.5 2-Ethylnaphthalene
5.7
1.4
Benzofuran a
216
16
1,3,5-Trimethylbenzene a
53
7
1,4/2,3-Dimethylnaphthalene
5.7
1.4
Benzofuran
182
19
2-Methylquinoline
24
4
Dibenzofuran
53
15
Ethylbenzene
132
16
2-Phenylpyridine
44
3
Xanthone
0.83
0.2
o-Xylene a
173
19
1,2,4-Trimethylbenzene a
87
14
1,8/2,7-Dimethylnaphthalene
17
4
2,3,5-Trimethylphenol
41
5
1,2-Dimethylnaphthalene
9.7
0.9 Fluorene
18
6
3,4,5-Trimethylphenol
10
2
6/7-Methylquinoline
4.2
0.5 Phenanthrene
5.3
2.5
Indene a
1149
198
Dibenzothiophene
1.0
0.3 Pyrene
0.19
0.1
Indene
1309
139
Naphthalene a
5864
652
Fluoranthene
0.44
0.3
m,p-Xylene a
494
51
1-Cyanonaphthalene
72
6
Note:
Mean values with standard deviations are shown, obtained from 10 concentrations within the runtime of 3 months. Order of compounds as found
in column experiments (e.g., phenol was the fastest compound, fluoranthene was the slowest in both columns).
a
Compounds were analyzed by headspace GC, all other compounds were analyzed by GC–MS. Concentrations sum up to
Σc = 13.3 mg/L (for benzofuran, indane, indene, and benzothiophene mean values were used).
236
)
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TABLE 11.5
C
Permeable Reactive Barrier
± σ
c
± σ
c
± σ
Compound
μg/L
Compound
μg /L
Compound
μg/L
Phenol
302
27
1-Aminonaphthalene
4.0
0.8 2-Hydroxycarbazole
3.1
0.9
Benzene a
708
165
2-Naphthol
62
6
3-Methylbenzothiophene
16
3
2-Methylphenol
338
43
1-Indanone
74
13
2-Hydroxydibenzofuran
31
5
3/4-Methylphenol
265
30
Indane
381
46
2-Methylnaphthalene
50
22
3,5-Dimethylphenol
220
40
Indane a
367
86
1-Methylnaphthalene
262
74
2,3-Dimethylphenol
48
5
1-Naphthol
63
8
Biphenyl
58
9
Toluene a
336
32
Benzothiophene
664
67
Acenaphthene
72
11
2,4/2,5-Dimethylphenol
203
30
2-Methylbenzofuran
34
3
Acenaphthylene
4.8
0.9
2,6-Dimethylphenol
136
14
1,2,3-Trimethylbenzene a
43
5
1,3-Dimethylnaphthalene
25
5
3,4-Dimethylphenol
53
5
Benzothiophene a
886
82
Anthracene
1.7
0.8
2,4,6-Trimethylphenol
57
5
Isoquinoline
15
4
1,6-Dimethylnaphthalene
11
3
2,3,6-Trimethylphenol
26
2
Acridine
1.9
0.5 2-Ethylnaphthalene
5.7
1.4
Benzofuran a
216
16
1,3,5-Trimethylbenzene a
53
7
1,4/2,3-Dimethylnaphthalene
5.7
1.4
Benzofuran
182
19
2-Methylquinoline
24
4
Dibenzofuran
53
15
Ethylbenzene
132
16
2-Phenylpyridine
44
3
Xanthone
0.83
0.2
o-Xylene a
173
19
1,2,4-Trimethylbenzene a
87
14
1,8/2,7-Dimethylnaphthalene
17
4
2,3,5-Trimethylphenol
41
5
1,2-Dimethylnaphthalene
9.7
0.9 Fluorene
18
6
3,4,5-Trimethylphenol
10
2
6/7-Methylquinoline
4.2
0.5 Phenanthrene
5.3
2.5
Indene a
1149
198
Dibenzothiophene
1.0
0.3 Pyrene
0.19
0.1
Indene
1309
139
Naphthalene a
5864
652
Fluoranthene
0.44
0.3
m,p-Xylene a
494
51
1-Cyanonaphthalene
72
6
Note:
Mean values with standard deviations are shown, obtained from 10 concentrations within the runtime of 3 months. Order of compounds as found
in column experiments (e.g., phenol was the fastest compound, fluoranthene was the slowest in both columns).
a
Compounds were analyzed by headspace GC, all other compounds were analyzed by GC–MS. Concentrations sum up to
Σc = 13.3 mg/L (for benzofuran, indane, indene, and benzothiophene mean values were used).
236
)
”
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b
A
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C
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B
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a
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h
f t
n o
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i
s
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p
m
o
TABLE 11.5
C
Permeable Reactive Barrier