کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6308491 | 1618854 | 2014 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Wire-cylinder dielectric barrier discharge induced degradation of aqueous atrazine
ترجمه فارسی عنوان
تخلیه دیواره الکتریکی سیم سیلندر باعث تخریب آترازین آبی می شود
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کلمات کلیدی
آراازین، تخلیه مانع دی الکتریک، واسطه های تجزیه کننده، مسیرهای تخریب،
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
شیمی زیست محیطی
چکیده انگلیسی
The wire-cylinder dielectric barrier discharge reactor was adopted for removal of aqueous atrazine. The effect of different parameters on the degradation efficiency of atrazine was investigated, and the degradation mechanism of atrazine was studied. The experimental results showed that when the discharge power was 50Â W and the air flow rate was 140Â LÂ hâ1, 93.7% of atrazine was degraded after 18Â min of discharge time. The concentrations of generated O3 and H2O2 increased with increasing discharge time. The pH decreased from 6.80 to 2.50, 12.7% of TOC was removed after 18Â min. The concentrations of generated Clâ and NO3â increased significantly during the degradation process of atrazine, and the decreasing toxicity trend was observed for the treated atrazine solution. The degradation byproducts of atrazine were identified using liquid chromatography-time-of-flight mass spectrometry (LC-TOF-MS), which might be formed mainly in dechlorination hydroxylation, alkyl oxidation, dechlorination hydroxylation combined with alkyl oxidation and demethylation oxidation reactions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemosphere - Volume 117, December 2014, Pages 506-514
Journal: Chemosphere - Volume 117, December 2014, Pages 506-514
نویسندگان
Dan Zhu, Lin Jiang, Run-long Liu, Pei Chen, Lin Lang, Jing-wei Feng, Shou-jun Yuan, Da-yong Zhao,