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Table 2 Mean and standard deviation of BOD5, COD and TSS parameters in the greywater incoming to the system with diverse OLRs

From: Biodegradation and nutrients removal from greywater by an integrated fixed-film activated sludge (IFAS) in different organic loadings rates

Operation time (day) OLR (mgCOD/L.d) BOD5 (mg/L) COD (mg/L) TSS (mg/L)
25–37 111.11 15.43 ± 3.1 55.23 ± 7.1 7.11 ± 1.2
38–47 222.2 35.52 ± 8.6 97.33 ± 8.3 15.37 ± 1.8
48–67 444.4 75.34 ± 9.7 205.12 ± 10.2 30.21 ± 3.9
68–85 888.8 110.48 ± 10.4 401.44 ± 12.8 46.13 ± 8.1
86–105 1333.3 174.33 ± 12.1 610.48 ± 18.2 62.66 ± 9.5