Fig. 25.2 Concentration of PAH groups in composted creosote-treated wood (CTW) with either
broiler litter (BL) or grass-cuttings (GC) co-substrate. The data are the mean Æ standard deviation of
five independent replicates (Covino et al. 2016)
Table 25.2 Comparison of real PAH biodegradation efficiency and predicted efficiency calculated
according to F-fraction—Treatment 2: Creosote-treated wood co-composted with broiler litter
(CTW + BL) or grass cuttings (CTW + GC)
2–3-ring PAHs
4-ring PAHs
5–6-ring PAHs
Σ PAHs
Original conc. (mg/kg)
13,371
11,123
2004
26,498
F-fraction (%)
96.2
64.4
50.6
79.4
CTW – BL
Degradation efficiency (%)
96.3
69.1
50.8
81.4
CTW – GC
Degradation efficiency (%)
98.2
95.7
93.9
97.0