چاپ صفحه |  صفحه نخست سامانه |  نویسندگان |  اطلاعات تفضیلی |  دانلود مقاله | دانشگاه علوم پزشکی تبریز |
| نویسنده | نفر چندم مقاله |
|---|---|
| سمیرا شیخی | اول |
| حسن اصلانی | دوم |
| رضا دهقانزاده ریحانی | سوم |
| عنوان | متن |
|---|---|
| خلاصه مقاله | Chlorpyrifos (CPF), an organophosphate pesticide, has been widely used in the agricultural industry and may cause environmental damage. The present study was aimed to evaluate the potential application of Fe(VI) and Fe(VI)/PMS processes for oxidation of CPF in water treatment. Hence, this study was performed in two phases including coagulation and flocculation process and advanced oxidation process (AOP). In the first phase, the coagulation process was performed for turbidity removal by ferric chloride (FeCl3). In this phase, using a central composite design (CCD), the combined effect of four variables including initial turbidity, initial pH, coagulant dose and contact time was investigated. The supernatant from this process was transferred to the next phase for further analysis. In the AOP phase, the effect of Fe(VI) and Fe(VI)/PMS oxidants were investigated separately. In the first phase (coagulation and flocculation), FeCl3 showed the highest efficiency (95.79%) at alkaline pH (pH=8). In the next phase (AOP), the results showed that the degradation efficiency of Fe(VI)/PMS process after coagulation processes was higher compared to Fe(VI) process at all pHs. However, the highest removal efficiency in both processes was obtained at pH=7. Also, by examining the reaction kinetics, it was found that after the coagulation process by FeCl3, the removal rate in the Fe(VI)/PMS process is 1.5 times higher than the Fe(VI) process. |
| کلمات کلیدی | Water treatment, Advanced oxidation, Chlorpyrifos, Ferrate(VI), Peroxymonosulfate |
| نام فایل | تاریخ درج فایل | اندازه فایل | دانلود |
|---|---|---|---|
| 86619.pdf | 1400/10/14 | 477275 | دانلود |
| INCEHBooklet2021_Kashan_final_edited.pdf | 1400/10/14 | 51990842 | دانلود |
