Combining size fractionation, scanning electron microscopy, and X-ray absorption spectroscopy to probe zinc speciation in pig slurry.

摘要: Zinc occurs in high quantity pig slurry since it is used as an essential micronutrient at concentrations animal feeds despite the low Zn assimilation by pigs. accumulation was measured soil surface layers that had been amended with slurry, while also determining phytotoxicity well extent of groundwater quality degradation. To accurately predict mobility and bioavailability derived from spreading, speciation this element has to be assessed total concentration not sufficient. This study involved a combination techniques investigate slurry. Size fractionation first performed account for complexity 75% detected 0.45- 20-μm particle-size range. Then X-ray diffraction, scanning electron microscopy, coupled energy dispersive spectrometer, extended absorption fine structure analyses were combined assess speciation. The findings highlighted presence 49% bound organic matter, 37% amorphous hydroxides [Zn(OH)2], 14% sphalerite (ZnS).