Firing Increases Arsenic Leaching from Ceramic Water Filters via Arsenic and Iron Phase Transformations
| Autor: | Michael V. Schaefer, Samantha C. Ying, Macon J. Abernathy, Dominique Nguyen, Thida Cornell |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Ceramics
Iron Metallurgy Arsenate chemistry.chemical_element Water General Chemistry Oxalate Article Arsenic Water Purification chemistry.chemical_compound chemistry visual_art Phase (matter) visual_art.visual_art_medium Environmental Chemistry Water treatment Ceramic Leaching (metallurgy) Solubility Water Pollutants Chemical |
| Zdroj: | Environ Sci Technol |
| Popis: | Ceramic water filters (CWFs) are produced globally using local clay sources and can effectively remove bacterial pathogens during point-of-use water treatment. The ceramic production process involves firing clay mixed with burnout material at temperatures of 800-1100 °C, which induces mineralogical changes leading to increased arsenic (As) leaching from CWF material compared to source clay. Unfired clay and fired CWFs from Cambodia, Canada, and Mexico, CWF from Laos, and test-fired clay from the United States were analyzed to determine the extent of As leaching from CWFs that range in As ( |
| Databáze: | OpenAIRE |
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