Characterization of Dissolved Organic Matter in Fractions of Piggery Wastewater

Piggery wastewater was fractionated using three types of separation technologies including particle size fractionation, resin adsorption, and polar diversity separation. In polar diversity fractions, alkanes were the main non-polar components while phenol-like compounds such as phthalates acid esters (PAEs), and other non-polar esters accounted for more than 50% of the aromatic components. Sterols and fatty acid methyl esters (FAMEs) accounted for more than 70% of the non-hydrocarbon components. Six hazardous pharmaceuticals, including dihydroxanthin, a-santonin, bulflomedil, zolpidem, flumazenil, and pimozide, were identified in the non-hydrocarbons fraction of the piggery wastewater.