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Table 1 Performance of anaerobic fixed film baffled reactor (AnFFBR) in removing DEP

From: A comparative study of anaerobic fixed film baffled reactor and up-flow anaerobic fixed film fixed bed reactor for biological removal of diethyl phthalate from wastewater: a performance, kinetic, biogas, and metabolic pathway study

Study step A B
Study phase 1 2 3 4 5 1 2 3 4
Influent DEP concentration (mg L−1) 300 300 300 300 300 400 500 600 700
HRT (h) 12 18 24 30 36 36 36 36 36
L org (g COD m−2 day−1)a 4.162 2.775 2.081 1.665 1.387 1.85 2.312 2.775 3.237
Attached mass [TS (mg) of biofilm] 6180 4860 4180 3880 3710 4560 5400 6260 7170
Attached mass [VS (mg) of biofilm] 4500 3300 2820 2520 2400 3120 3900 4560 5340
VS/TS ratio 0.728 0.679 0.674 0.649 0.647 0.684 0.722 0.728 0.744
Effluent total suspended solids (mg day−1) 334.3 205 137.7 111.4 90 141.6 168.8 239.5 276.2
Effluent volatile suspended solids (mg day−1) 224.4 130.2 84.5 64.2 48.4 81 98.6 144.3 168.9
DEP concentration in TSSe (mg g−1)b 8.5 8.2 6.6 6.2 4.1 7.3 7.5 7.5 7.9
SRT (day) 18.48 23.7 30.35 34.83 41.22 32.2 31.99 26.13 25.96
Methane production (L/g CODrem) 0.21 (0.19)c 0.28 (0.25) 0.32 (0.29) 0.37 (0.34) 0.44 (0.4) 0.38 (0.35) 0.35 (0.32) 0.34 (0.31) 0.31 (0.28)
Methane percentage (%) 42.2 44.2 52.5 56.4 64.8 63.3 62.1 61.7 61.1
DEP removal (%) 73.46 78.43 81.4 86.33 90.26 90.62 90.64 90.83 91.11
COD removal (%) 66.66 70.1 77.33 82.29 87.01 88.04 89.48 89.6 90.31
TOC removal (%) 51.82 57.95 66.82 75.7 83.17 83.06 81.90 82.5 82.57
  1. aOrganic loading rate
  2. bEffluent total suspended solids
  3. cNumbers in brackets are methane yield at STP (1 bar and 273.15 °K)