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

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

Physico-chemical parameters	Laboratory data
Physico-chemical parameters	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
TSS^a (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
OD_475nm	34.5	25.2

SDW was incubated aerobically during 10 days with A. niger as explained in Methods section
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
^aExcept for TSS that were measured on insoluble suspended solids

ISSN: 2054-3085