کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6664113 | 1427043 | 2018 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Disinfection of secondary effluents by O3, O3/H2O2 and UV/H2O2: Influence of carbonate, nitrate, industrial contaminants and regrowth
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Disinfection of secondary effluents by O3, O3/H2O2 and UV/H2O2: Influence of carbonate, nitrate, industrial contaminants and regrowth Disinfection of secondary effluents by O3, O3/H2O2 and UV/H2O2: Influence of carbonate, nitrate, industrial contaminants and regrowth](/preview/png/6664113.png)
چکیده انگلیسی
The objective of this work was to verify the efficiency of O3, O3/H2O2 and UV/H2O2 treatments to disinfect municipal effluents as well as to verify the influence of carbonate, nitrate and industrial contaminants on the disinfection and reactivation of total coliforms and Escherichia coli after the treatments. The results showed that all AOP treatments were affected by the presence of carbonate and nitrate. In general, they reduced the inactivation of total coliforms and E. coli. However, carbonate was the main inhibitor of disinfection. Ozone disinfection showed to be more affected by scavenging compounds than the other methods The choice of the disinfection indicator is very important for the correct assessment of disinfection reduction by scavengers. Industrial contaminants also acted as radical scavengers. However, their influence was very limited. To assess the bacteria reactivation after the treatments the wastewater was kept in bottles for 24â¯h. Among the three tested oxidation processes, the ozone-alone was the less efficient regarding the bacteria reactivation. It seems that the presence of scavenging can change the mechanism of inactivation and promote faster regrowth.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Environmental Chemical Engineering - Volume 6, Issue 1, February 2018, Pages 560-567
Journal: Journal of Environmental Chemical Engineering - Volume 6, Issue 1, February 2018, Pages 560-567
نویسندگان
Jacqueline A. Malvestiti, Renato F. Dantas,