Fate of Zinc Oxide Nanoparticles in a Biosolid Slurry Characterized for Metal Complexation Characteristics
| Autor: | Nahid Hassanvand-Gandaei, Elena A. Vialykh, Gopal Achari, Cooper H. Langford |
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| Rok vydání: | 2018 |
| Předmět: |
Environmental Engineering
Biosolids Kinetics chemistry.chemical_element Protonation Zinc Wastewater 010501 environmental sciences Management Monitoring Policy and Law Waste Disposal Fluid 01 natural sciences Metal Ion-exchange resin Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology Chelating resin Aqueous solution Chemistry 010401 analytical chemistry Pollution 0104 chemical sciences Metals visual_art visual_art.visual_art_medium Nanoparticles Zinc Oxide Water Pollutants Chemical Nuclear chemistry |
| Zdroj: | Journal of Environmental Quality. 47:1267-1274 |
| ISSN: | 1537-2537 0047-2425 |
| DOI: | 10.2134/jeq2018.02.0074 |
| Popis: | Zinc oxide nanoparticles (NPs) present in domestic wastewaters may accumulate in biosolids used as fertilizer. In this paper, metal complexation by typical biosolids is explored using methods from the humics literature. Uptake of Zn from NPs in the biosolids is evaluated. Finally, the kinetics of release of Zn species are reported as a function of (i) pH and (ii) the presence of strong binding ligands (e.g., ion exchange resin promoting release). The investigation revealed that (i) metal binding sites of biosolids are analogs of humic substances, (ii) ZnO NPs do not survive in the digestion environment, and (iii) any ZnO NPs dissolve to aqueous Zn²⁺ in |
| Databáze: | OpenAIRE |
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