کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8843776 | 1616285 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electrokinetic-enhanced bioremediation of tetrachloroethylene
ترجمه فارسی عنوان
برابری الکتروکینتیک از طریق تتراکلرو اتیلن بهبود یافته است
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کلمات کلیدی
تتراکلور اتیلن، روش الکترولیز، بیهوشی سیستم بی هوازی / هوازی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم محیط زیست
علوم زیست محیطی (عمومی)
چکیده انگلیسی
This study investigated the feasibility of using electrolysis of water to produce hydrogen and oxygen that were used as the electron donor and the electron acceptor for the anaerobic reductive dechlorination and the aerobic cometabolism of chlorinated ethylene contaminants, respectively. By employing the anaerobic and aerobic conditions in different sections of a column test, intermediates formed in the anaerobic dechlorination of PCE in the up-gradient section were further biodegraded through aerobic cometabolism in the down-gradient section, which used methane as the primary substrate. The results indicated that, the effluent PCE concentration was 0.88â¯Î¼molâ¯lâ1 when the influent PCE concentration was 60â¯Î¼molâ¯lâ1, up to 98.5% PCE was degraded in 160 days with an additional current density up to 0.099â¯mAâ¯cmâ2. The First-order reaction rate was increased by 1.9-17.3 times with biostimulation by electrolysis method, showing that the benefits of an integrated electrochemistry and biotransformation system to complete mineralization of tetrachloroethylene. In addition, the specific microbial populations of Dehalococcoides sp. and methane-oxidizing bacteria were analyzed using the ethidium monoazide-PCR procedure, indicating the presence of viable bacteria in the integrated system.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Biodeterioration & Biodegradation - Volume 132, August 2018, Pages 251-258
Journal: International Biodeterioration & Biodegradation - Volume 132, August 2018, Pages 251-258
نویسندگان
Chih-Hao Chang, Hsin-Yi Yang, Sheng-Kung Chen, Jui-Min Hung, Chih-Jen Lu, Min-Hsin Liu,