Degradation of veterinary antibiotics and hormone during broiler
manure compostingmatter by microorganisms, whose metabolism occurs in the watersoluble
phase. Thus, a change in WEOM is a good indication of organic
transformation and compost stability [4]. In addition, WEOM can interact
with a number of inorganic and organic pollutants because of
the presence of oxygen-containing and aromatic functional groups
in its constituents, which play significant biochemical and geochemical
roles in land systems [5]. Therefore, the structural characterization
of WEOM extracted from composted materials is essential for the successful
application of composting.
To date, WEOM analysis has mainly focused on conventional parameters,
such as dissolved organic carbon (DOC) concentration and