کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
580856 | 1453151 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hexachlorobenzene dechlorination by indigenous sediment microorganisms
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Indigenous microbes from the sediments, whether contaminated with hexachlorobenzene (HCB) or not, could dechlorinate HCB effectively without any acclimation and supplemental nourishment. Temperature seriously affected the HCB-dechlorination: within the measured 15-45 °C span, the optimum range was between 30 and 35 °C. Sulfate-reducing bacteria (SRB), denitrifiers, and acetogens might not be directly involved in the HCB dechlorination. However, the SRB retarded subsequent dechlorination of pentachlorobenzene to tetra- and trichlorobenzenes. Some vancomycin-resistant gram-positive bacteria and methanogens were most likely to be the HCB-dechlorinators. The dechlorination followed the Michaelis-Menten behavior with the kâ²m and KHCB between 0.45-0.73 mg Lâ1 dayâ1 and 3.2-17.2 mg Lâ1, respectively. These findings suggest a potential HCB treatment and cleanup for wastewater and contaminated site.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 177, Issues 1â3, 15 May 2010, Pages 244-250
Journal: Journal of Hazardous Materials - Volume 177, Issues 1â3, 15 May 2010, Pages 244-250
نویسندگان
I-Ming Chen, Wanit Wanitchapichat, Teeranuch Jirakittayakorn, Sukanda Sanohniti, Wichidtra Sudjarid, Chalermraj Wantawin, Jarurat Voranisarakul, Jin Anotai,