Publications by authors named "Thiago Augusto Formentini"
Arsenic (As) is carcinogenic and of major concern in groundwater. We collected sediment material from a contaminated anoxic aquifer in Sweden and investigated the immobilization of As by four commercial zero-valent iron (ZVI) particles. Solid-phase As and Fe speciation was assessed using X-ray absorption spectroscopy (XAS) and solution-phase As speciation using chromatographic separation.
View Article and Find Full Text PDFRecycling of organic waste (OW) as fertilizer on farmland is a widespread practice that fosters sustainable development via resource reuse. However, the advantages of OW fertilization should be weighed against the potentially negative environmental impacts due to the presence of contaminants such as zinc (Zn). Current knowledge on the parameters controlling the environmental fate of Zn following OW application on cultivated soils is scant.
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- Spreading livestock manure as fertilizer can lead to increased heavy metal contamination in soils, particularly due to high levels of zinc (Zn), which raises environmental concerns.
- Long-term field studies on the behavior of Zn in manure-amended soils are limited, prompting this research to analyze Zn speciation over an 11-year period of pig slurry applications.
- The study found that while ZnS was the only form of Zn in the pig slurry, it was not detected in the amended soil after numerous applications, suggesting that the instability of ZnS nanoparticles in complex soil environments alters Zn speciation significantly.
Pig slurry (PS) recycling as fertilizer is commonly practiced as an option for minimizing livestock waste. Successive PS applications on the soil can lead to crop toxicity and environmental risk. Despite extensive investigation of macronutrient behavior, the fate of trace metals remains uncertain and only a few long-term field studies have been reported to date.
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