Skip to main content

Table 4 Characterization of greasy water, our own analysis in comparison with literature values

From: Biogas and nutrients from blackwater, lawn cuttings and grease trap residues—experiments for Hamburg’s Jenfelder Au district

Parameter Unit Own analysis Literature
No. of samples AWW FNR 2006 [13] Deegener [7]
Average ± SD Min–max values Average ± SD
DM % 6 2.32 ± 0.22 2–70 4.52 ± 4.03
oDM % DM 6 81.59 ± 11.31 75–93 88.4 ± 10.5
COD mg/l 7 63,374 ± 33,582 63,900 ± 56,500
TOC mg/l 7 9158 ± 2805 16,100 ± 13,600
TN mg/l 7 567 ± 230 0.1–3.6 % DM 540 ± 520
NH4 +/NH3-N mg/l 0.02–1.5 % DM
pH 4 4.54 ± 0.32 4.1 ± 0.7