Iranian Journal of Toxicology
مجله سم شناسی و مسمومیتهای ایران
IJT
Medical Sciences
http://ijt.arakmu.ac.ir
1
admin
2008-2967
2251-9459
8
10.61186/ijt
14
8888
13
en
jalali
1391
4
1
gregorian
2012
7
1
6
17
online
1
fulltext
en
Decomposition of Askarel Oil by Microwave Radiation and H202/TiO2 Agents in order to reduce occupational hazards
Decomposition of Askarel Oil by Microwave Radiation and H202/TiO2 Agents in order to reduce occupational hazards
تخصصي
Special
پژوهشي
Research
<b>Background:</b> Poly chlorinated biphenyls (PCBS) are the groups of organic chemical material and toxic, persistent, bio accumulate and pose a risk of causing adverse effects to human health and the environment. PCB compounds are caused the different health effects in human depending of age, sex, route of entry, intensity and frequency exposure. This study was conducted to determine the effect of microwave rays, hydrogen peroxide, TiO2 catalyst and ethanol on the Decomposition of PCBS.
<br><b>Methods:</b> In this experiment used a MW oven, Pyrex vessel reactor (250ml volume), Pyrex tube connector and condensing system. A 900w domestic MW oven with a fixed frequency of 2450 MHZ was used to provide MW irradiation. Ray powers used in 540، 720 and 900w. The PCB were analyzed by GC-ECD
<br><b>Results: </b>The degradation of total PCBS in terms of 540, 720 and 900W was 85.03%, 90.32% and 96.87% respectively. The degradation of total PCB in terms of ratio to solvent with transformer oil in 1:1، 2:1 and 3:1 was 53.97%، 78.98% and 95.13% respectively. The degradation of total PCBs in terms of not using of H2O2/ TiO2 and using 20% of H2O2 and 0.05, 0.1, 0.15 and 0.2 g TiO2 was 68.78%, 93.97%, 95.13%, 96.18% and 96.87 % respectively.
<br><b>Conclusion:</b> The Microwave thermal reaction was applied for the dechlorination of PCBs and high efficiencies were obtained. Microwave power and amounts of reactants added are important factors influencing dechlorination efficiency.
Askarel, Degradation,H2O2, PCBS.
Askarel, Degradation,H2O2, PCBS.
660
667
http://ijt.arakmu.ac.ir/browse.php?a_code=A-10-2-98&slc_lang=en&sid=1
Reza
Tajik
رضا
تاجیک
10031947532846002539
10031947532846002539
No
PhD.Student, Department of Occupational and Environment Health, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran,
PhD.Student, Department of Occupational and Environment Health, School of Medical Sciences, Tarbiat Modares University, Tehran, Iran,
Hasan
Asilian
حسن
اصیلیان
Asilia_h@ modares.ac.ir.
10031947532846002540
10031947532846002540
Yes
Department of Occupational and Environment Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Department of Occupational and Environment Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Ali
Khavanin
علی
خوانین
10031947532846002541
10031947532846002541
No
Department of Occupational and Environment Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Department of Occupational and Environment Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Ahmad
Jonidi
احمد
جنیدی
10031947532846002542
10031947532846002542
No
Department of Occupational and Environment Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Department of Occupational and Environment Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Babak
Eshrati
بابک
عشرتی
10031947532846002543
10031947532846002543
No
Department of Statistics and Epidemiology, Faculty of Health, Arak university of Medical Sciences, Arak, Iran
Department of Statistics and Epidemiology, Faculty of Health, Arak university of Medical Sciences, Arak, Iran
Ardalan
Soleimanian
اردلان
سلیمانیان
10031947532846002544
10031947532846002544
No
Department of Occupational and Environment Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
Department of Occupational and Environment Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.