Remediation of PAHs, NSO-Heterocycles, and Related Aromatic Compounds in Permeable Reactive Barriers Using Activated Carbon - Permeable Reactive Barrier: Sustainable Groundwater Remediation - page 236

TABLE 11.5
Composition of the Groundwater Used in Both Column Experiments (“Biotic-Column” and “Abiotic-Column”)

c ± σ c ± σ c ± σ

Compound μ g/L Compound μ g /L Compound μ g/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, luoranthene 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 benzo-
furan, indane, indene, and benzothiophene mean values were used).