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Table 1 Comparison of physico-chemical parameters of raw SDW and treated SDW filtrates obtained after 10 days of aerobic fermentation by A. niger

From: Production of Aspergillus niger biomass on sugarcane distillery wastewater: physiological aspects and potential for biodiesel production

Physico-chemical parameters

Laboratory data

Raw SDW (day 0)

Fermented SDW (day 10)

pH

4.6

5.4

COD (g L−1)

107

50

TDS (g L−1)

114 ± 12.8

89 ± 7.07

TSSa (g L−1)

8.13 ± 1.41

43.42 ± 1.2

TN (g L−1)

2.32

1.7

Ashes (g L−1)

38.5 ± 2.33

43.2 ± 1.94

C/N

11.8

11.3

OD475nm

34.5

25.2

  1. SDW was incubated aerobically during 10 days with A. niger as explained in Methods section
  2. TDS total dissolved solids, TSS total suspended solids, COD chemical oxygen demand, TN total nitrogen, C/N carbon/nitrogen, OD 475nm optical density measured at 475 nm
  3. aExcept for TSS that were measured on insoluble suspended solids