کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5757376 1622718 2017 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Biofilm processes in treating mariculture wastewater may be a reservoir of antibiotic resistance genes
ترجمه فارسی عنوان
فرایندهای بیوفیلم در درمان پساب های جنگلی ممکن است مخزن ژن های مقاوم به آنتی بیوتیک باشد
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
چکیده انگلیسی
Antibiotics are heavily used in Chinese mariculture, but only a small portion of the added antibiotics are absorbed by living creatures. Biofilm processes are universally used in mariculture wastewater treatment. In this study, removal of antibiotics (norfloxacin, rifampicin, and oxytetracycline) from wastewater by moving bed biofilm reactors (MBBRs) and the influence of antibiotics on reactor biofilm were investigated. The results demonstrated that there was no significant effect of sub-μg/L-sub-mg/L concentrations of antibiotics on TOC removal. Moreover, the relative abundance of antibiotic resistance genes (ARGs) and antibiotic resistance bacteria (ARB) in MBBR biofilm increased because of selective pressure of antibiotics. In addition, antibiotics decreased the diversity of the biofilm bacterial community and altered bacterial community structure. These findings provide an empirical basis for the development of appropriate practices for mariculture, and suggest that disinfection and advanced oxidation should be applied to eliminate antibiotics, ARGs, and ARB from mariculture wastewater.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Pollution Bulletin - Volume 118, Issues 1–2, 15 May 2017, Pages 289-296
نویسندگان
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