کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6580448 | 1422941 | 2018 | 45 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Persulfate activation in gas phase surface discharge plasma for synergetic removal of antibiotic in water
ترجمه فارسی عنوان
فعال سازی پرزفولت در پلاسما سطح تخلیه فاز گاز برای حذف سینرژیک آنتی بیوتیک در آب
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کلمات کلیدی
پلاسمای سطح تخلیه، فعال سازی پرزفلس، اثر هم افزایی، تتراسیکلین تخریب،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
A process of persulfate (PS) activation in gas phase surface discharge plasma was studied to facilitate the removal of tetracycline (TC) in water. PS was introduced into the discharge reactor, and the effects of PS added dosage and applied voltage on TC removal were determined. The results showed that PS addition exhibited significant synergistic effect, promoting the degradation efficiency and removal rate of TC. Increasing the applied voltage was beneficial to the enhancement of TC decomposition. The removal efficiency and first order kinetic constant were achieved 87.5% and 0.232â¯minâ1 at a PS addition dosage of 20:1 (molar ratio of PS to TC) and a discharge voltage of 7â¯kV after 15â¯min treatment, respectively. Especially the calculated synergistic factor achieved 1.856, indicating the synergistic effect was existed. Besides, the removal of the synergistic system was influenced remarkably by the other operation parameters, including air flow rate, initial TC concentration, and initial pH value. The mineralization of TC and intermediates produced during the synergistic process was explored by UV-vis spectrogram and TOC analyses. The synergistic effect could be explained by the enhanced formation of hydroxyl and sulfate radicals that were generated from the activation of PS in discharge plasma. The evolution of the main degradation byproducts in the synergism process was investigated by HPLC-MS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Journal - Volume 337, 1 April 2018, Pages 446-454
Journal: Chemical Engineering Journal - Volume 337, 1 April 2018, Pages 446-454
نویسندگان
Shoufeng Tang, Deling Yuan, Yandi Rao, Na Li, Jinbang Qi, Tianze Cheng, Zhitao Sun, Jianmin Gu, Haiming Huang,