Chloride Interactions with Iron Surfaces: Implications for Perchlorate and Nitrate Remediation Using Permeable Reactive Barriers
| العنوان: | Chloride Interactions with Iron Surfaces: Implications for Perchlorate and Nitrate Remediation Using Permeable Reactive Barriers |
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| المؤلفون: | Thomas M. Young, Angela M. Moore |
| المصدر: | Journal of Environmental Engineering. 131:924-933 |
| بيانات النشر: | American Society of Civil Engineers (ASCE), 2005. |
| سنة النشر: | 2005 |
| مصطلحات موضوعية: | Zerovalent iron, Environmental Engineering, Iron filings, Inorganic chemistry, Oxyanion, Sorption, complex mixtures, Chloride, chemistry.chemical_compound, Perchlorate, Adsorption, chemistry, Permeable reactive barrier, medicine, Environmental Chemistry, General Environmental Science, Civil and Structural Engineering, medicine.drug |
| الوصف: | Perchlorate (Cl O4− ) can be reduced by iron surfaces, suggesting that permeable reactive barriers may represent a useful groundwater remediation strategy. However, chloride produced by the reaction inhibits further perchlorate removal. Adsorption of chloride on iron filings was investigated as a potential mechanism of chloride interference. The effect of chloride on the removal of nitrate, another oxyanion reactive at iron surfaces, was also investigated to draw more general conclusions about anion competition when target compounds adsorb electrostatically. A triple layer adsorption model was used to describe chloride sorption isotherms on the iron filings using magnetite as the model surface and defining a single type of surface hydroxyl sorption site. The model considered electrostatic attraction, specific sorption, and the effect of adsorbed Fe2+ on chloride sorption. Experimental and modeling results indicate that chloride competition is probably not of concern for nitrate reduction in permeable reac... |
| تدمد: | 1943-7870 0733-9372 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::2555e3d2838d4bdc6fe9ce7d1bd9f4de https://doi.org/10.1061/(asce)0733-9372(2005)131:6(924) |
| رقم الأكسشن: | edsair.doi...........2555e3d2838d4bdc6fe9ce7d1bd9f4de |
| قاعدة البيانات: | OpenAIRE |
Find this article in full text from Scitation. | تدمد: | 19437870 07339372 |
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