کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6971239 | 1453080 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Degradation of off-gas toluene in continuous pyrite Fenton system
ترجمه فارسی عنوان
تجزیه طوفان خالص در سیستم فیتون پییریت مداوم
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
چکیده انگلیسی
Degradation of off-gas toluene from a toluene reservoir and a soil vapor extraction (SVE) process was investigated in a continuous pyrite Fenton system. The removal of off-gas toluene from the toluene reservoir was >95% by 8Â h in the pyrite Fenton system, while it was â¼97% by 3Â h in classic Fenton system and then rapidly decreased to initial level by 8Â h. Continuous consumption of low Fe(II) concentration dissolved from pyrite surface (0.05-0.11Â mM) was observed in the pyrite Fenton system, which can lead to the effective and successful removal of the gas-phase toluene due to stable production of OH radical (OH). Inhibitor and spectroscopic test results showed that OH was a dominant radical that degraded gas-phase toluene during the reaction. Off-gas toluene from the SVE process was removed by 96% in the pyrite Fenton system, and remnant toluene from rebounding effect was treated by 99%. Main transformation products from toluene oxidation were benzoic acid (31.4%) and CO2 (38.8%) at 4Â h, while traces of benzyl alcohol (1.3%) and benzaldehyde (0.7%) were observed. Maximum operation time of continuous pyrite Fenton system was estimated to be 56-61Â d and its optimal operation time achieving emission standard was 28.9Â d.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 280, 15 September 2014, Pages 31-37
Journal: Journal of Hazardous Materials - Volume 280, 15 September 2014, Pages 31-37
نویسندگان
Kyunghoon Choi, Sungjun Bae, Woojin Lee,