کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7065808 | 1459876 | 2018 | 34 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of sulfadimethoxine (SDM) and sulfamethazine (SM) on anammox bioreactors: Performance evaluation and bacterial community characterization
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
The specific inhibitory effects of sulfonamides on anaerobic ammonium oxidation (anammox) process remain unknown. This study investigated the inhibitory characteristics of sulfadimethoxine (SDM) and sulfamethazine (SM) in two anammox bioreactors with NH4+-N (160â¯mg/L) and NO2â-N (210â¯mg/L) in influent. Results indicate that anammox bacteria in both bioreactors adapted to low antibiotic concentrations (less than 3â¯mg/L). At concentrations between 5 and 7â¯mg/L, SDM inhibited the growth of anammox bacteria and resulted in a decrease of Candidatus Brocadia abundance from 2.57% to 0.39%. In contrast, at concentrations of 5-9â¯mg/L, SM inhibited the denitrification process more severely than SDM, resulting in higher accumulation of nitrite and nitrate. The purpose of this study was to elucidate the inhibitory effects of sulfonamides on the anammox process and to provide a reference for the stable operation of anammox bioreactors for the treatment of sulfonamide-containing wastewater.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Bioresource Technology - Volume 267, November 2018, Pages 84-92
Journal: Bioresource Technology - Volume 267, November 2018, Pages 84-92
نویسندگان
Lingfeng Du, Shaoju Cheng, Yuqian Hou, Xinbo Sun, Dechao Zhou, Bo Liu,