کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1882613 1043241 2012 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Identification of estrogenic activity change in sewage, industrial and livestock effluents by gamma-irradiation
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم تشعشع
پیش نمایش صفحه اول مقاله
Identification of estrogenic activity change in sewage, industrial and livestock effluents by gamma-irradiation
چکیده انگلیسی

In this study, reduction of estrogenic activity in three different types of effluents from sewage, industrial and livestock wastewater treatment plants by gamma-irradiation was investigated using the yeast two-hybrid assay. After gamma-ray treatment at a dose of 10 kGy, estrogenic activities of sewage, industrial and livestock effluents decreased from 4.4 to 3.0, 1.5 to 1.0 and 16 to 9.9 ng-EEQ L−1, respectively. The substantial reduction of estrogenic activity in livestock effluent was attributable to the degradation of 17β-estradiol (E2), estrone (E1) and 17α-ethynylestradiol (EE2). Although bisphenol A (BPA) was found at the highest concentration in all effluents, its contribution to the estrogenic activity was not significant due to its low relative estrogenic potency. Meanwhile, the calculated estrogenic activity based on concentrations of E2, E1, EE2 and BPA in the effluents significantly differed from the measured ones. Overestimation may have resulted by dissolved organic matters in effluents inhibiting the estrogenic activity of E2, E1, EE2 and BPA, whereas underestimation was likely due to estrogenic by-products generated by gamma-irradiation.


► Livestock effluent showed strong estrogenic activity due to E2, E1 and EE2.
► EE2 remained in all effluents after gamma-irradiation even at a dose of 10 kGy.
► DOMs in effluents inhibited degradation and activity of estrogenic compounds.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Radiation Physics and Chemistry - Volume 81, Issue 11, November 2012, Pages 1757–1762
نویسندگان
, , , , , ,