کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4987533 | 1455272 | 2017 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Application of sensitive electrochemical sensing system for detecting bromate from disinfection process in desalination plant
ترجمه فارسی عنوان
کاربرد سیستم سنجش الکتروشیمیایی حساس برای تشخیص برومات از پروتئین ضد عفونی در گیاه خنک سازی
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کلمات کلیدی
حسگر آمپر، برومات، نمک زدایی، کلر آزاد روند ضدعفونی کردن،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
چکیده انگلیسی
Chlorination is the most commonly used in disinfection to prevent from the bacterial growth in both intake and distribution pipelines or storage tanks. However, the disinfection treatment can result in an undesirable by-product, such a bromate (BrO3â), which is a suspected human carcinogen. Seawater has a high potential of BrO3â formation because of high bromide (Brâ) concentration (around 65 mg/L) which can be transformed by chlorination in disinfection process. Therefore, the measurement or monitoring of BrO3â formation is necessary. This study aims to apply the sensitive amperometric sensing system for detecting BrO3â in free chlorine condition. A linear dynamic ranged from 60 to 200 nM of BrO3â even in 28 μM free chlorine solution with a sensitivity of 108.8 μA/μM. The detection limit level of BrO3â was 38.6 nM and the limit of quantification value of BrO3â was 113.7 nM (at pH 7). This detection limit value was half of global guideline value for drinking water. The proposed technique had no noticeable interference to the sensing of BrO3â over various potentially interfering agents and other chlorinated disinfection by-products. The data measured by multilayered sensor system was in a good agreement for detecting BrO3â with validated data measured by using a conventional UV-vis spectroscopic method. As a final demonstration, the proposed amperometric sensing system would significantly contribute to the on-site detection of BrO3â concentration from chlorinating disinfection process within drinking water treatment plants, including desalination, and water quality monitoring applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Desalination - Volume 423, 1 December 2017, Pages 135-140
Journal: Desalination - Volume 423, 1 December 2017, Pages 135-140
نویسندگان
Yong-Gu Lee, Am Jang,