کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9537793 | 1641929 | 2005 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Decolourisation of textile indigo dye by DC electric current
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
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چکیده انگلیسی
The electrochemical technology has been employed for the treatment of soils and liquid medium contaminated with aromatic pollutants as indigo textile dye. In liquid medium, 76% of colour removal was obtained in 87 h, and the addition of NaCl (10 g/l) reduced the treatment time up to 45 min. In soils, two alternative methods were developed: a direct electrochemical treatment and the extraction of dye from the soil followed by electrochemical decolourisation of the liquid collected. In the latter process, 50% ethanol in water solution was selected as the best extracting agent. This extracting solution (indigo concentration of 0.5 g/l) was further decolourised electrochemically in the presence of NaCl (10g/l) for 24 h, ending in a colour removal of 70%. Using the direct electrochemical treatment, a regular decolourisation profile along the whole cell was attained. The decolourisation degree was 76% and was reached after 16 days of treatment and an electric power consumption of 61 W·h.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Geology - Volume 77, Issues 3â4, March 2005, Pages 253-261
Journal: Engineering Geology - Volume 77, Issues 3â4, March 2005, Pages 253-261
نویسندگان
M.A. Sanromán, M. Pazos, M.T. Ricart, C. Cameselle,