title: Lipid profile characterization of wastewaters from different origins.
abstract: Lipids in wastewaters are potential raw material for renewable diesel, but may complicate biological treatment of wastewaters. The lipid composition of palm oil mill effluent (POME), chemithermomechanical pulp mill (CTMP) wastewater and municipal wastewater (MWW) was studied with a combination of thin-layer chromatography and nuclear magnetic resonance. Gravimetrically determined content of extracted lipids from the solids of POME and CTMP wastewater were 8.4 ± 1.2 g/L (19.6 ± 0.8% of dry weight) and 0.17-0.23 g/L (12.4-18.5%), respectively, while MWW contained 0.021 ± 0.002 g/L (9.3 ± 1.4%) of lipids. All lipid extracts contained mono-, di- and triacylglycerols (TAGs) and free fatty acids (FFAs). In POME, lipids were mostly TAGs (11.5 ± 0.2 μmol/10 mg of lipid extract). In CTMP and MWW lipid composition was more diverse than in POME containing also sterol derivatives and fatty acid methyl esters and the main lipids were FFAs.
authors: Department of Chemistry and Bioengineering, Tampere University of Technology, POB 541, FI-33101 Tampere, Finland E-mail: jatta.marjakangas@tut.fi.
authors: E
authors: E
authors: Efimova
authors: Department of Chemistry and Bioengineering, Tampere University of Technology, POB 541, FI-33101 Tampere, Finland E-mail: jatta.marjakangas@tut.fi.
authors: J M
authors: JM
authors: Marjakangas
authors: Department of Chemistry and Bioengineering, Tampere University of Technology, POB 541, FI-33101 Tampere, Finland E-mail: jatta.marjakangas@tut.fi.
authors: A-M
authors: AM
authors: Lakaniemi
authors: Research and Development, Neste Oil Corporation, POB 310, FI-06101 Porvoo, Finland.
authors: P E P
authors: PE
authors: Koskinen
authors: Department of Chemistry and Bioengineering, Tampere University of Technology, POB 541, FI-33101 Tampere, Finland E-mail: jatta.marjakangas@tut.fi.
authors: J A
authors: JA
authors: Puhakka
mesh_terms: D056804:Biofuels / Q000032:analysis; D002855:Chromatography, Thin Layer; D007220:Industrial Waste / Q000032:analysis*; D008055:Lipids / Q000032:analysis*; D009682:Magnetic Resonance Spectroscopy; D000073878:Palm Oil; D010938:Plant Oils; D062065:Wastewater / Q000032:analysis*
chemical_list: D056804:Biofuels; D007220:Industrial Waste; D008055:Lipids; D000073878:Palm Oil; D010938:Plant Oils; D062065:Wastewater