کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9482782 | 1627145 | 2005 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Interphase mass transfer during chemical oxidation of TCE DNAPL in an aqueous system
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Interphase mass transfer during chemical oxidation of TCE DNAPL in an aqueous system Interphase mass transfer during chemical oxidation of TCE DNAPL in an aqueous system](/preview/png/9482782.png)
چکیده انگلیسی
The chemical oxidation of trichloroethene dense non-aqueous phase liquid by permanganate was studied in an aqueous system using micro-reaction/extraction vessels in a novel approach. Experiments were conducted at ambient temperature (â¼20 °C) under static and mixed conditions to evaluate the rate of TCEDNAPL dissolution as a function of permanganate concentration. Chemical oxidation by permanganate was shown to increase the rate of TCEDNAPL dissolution under static conditions and decrease the rate of dissolution under mixed conditions. The apparent inconsistency in results appears to result from the local deposition of a film at the DNAPL interface composed of manganese oxide solids as discovered through visual observation with the aid of a Goniometer. Data from interfacial deposition experiments suggest that the film formed rapidly and reached maturation within approximately 2 h with little or no growth occurring thereafter. A conceptual model of the reaction and mass transfer processes occurring at the DNAPL interface was proposed based on the experimental results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Contaminant Hydrology - Volume 80, Issues 3â4, 15 November 2005, Pages 93-106
Journal: Journal of Contaminant Hydrology - Volume 80, Issues 3â4, 15 November 2005, Pages 93-106
نویسندگان
Michael A. Urynowicz, Robert L. Siegrist,