کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4979076 | 1453021 | 2018 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mechanochemical destruction of DDTs with Fe-Zn bimetal in a high-energy planetary ball mill
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Mechanochemical destruction of DDTs with Fe-Zn bimetal in a high-energy planetary ball mill Mechanochemical destruction of DDTs with Fe-Zn bimetal in a high-energy planetary ball mill](/preview/png/4979076.png)
چکیده انگلیسی
Mechanochemical destruction has been proposed as a promising, non-combustion technology for the disposal of toxic, halogenated, organic pollutants. In the study presented, additives including Fe, Zn, Fe-Zn bimetal, CaO and Fe2O3 were tested for their effectiveness to remove DDTs by MC. The results showed that Fe-Zn bimetal was the most efficient additive, with 98% of DDTs removed after 4Â h. The Fe-Zn mass ratio was optimized to avoid possible spontaneous combustion of the ground sample during subsample collection. Inorganic water-soluble chloride in the ground sample increased by 91% after 4Â h of grinding, which indicated dechlorination during destruction of DDTs. In addition, relationships were established between the rate constant and the rotation speed or the charge ratio. Discrete Element Method (DEM) modeling was used to simulate the motion of the grinding ball and calculate both total impact energy and normal impact energy. The latter expressed a stronger, linear correlation with the rate constant. Therefore, normal impact energy is proposed to be the main driving force in the MC destruction of DDTs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 342, 15 January 2018, Pages 201-209
Journal: Journal of Hazardous Materials - Volume 342, 15 January 2018, Pages 201-209
نویسندگان
Hong Sui, Yuzhou Rong, Jing Song, Dongge Zhang, Haibo Li, Peng Wu, Yangyang Shen, Yujuan Huang,