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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