Impacts of sulfadiazine on the performance and membrane fouling of a hybrid moving bed biofilm reactor-membrane bioreactor system at different C/N ratios

被引：26
|
作者：
Zhang, Xinbo [1 ,2 ]
Zhang, Zumin [1 ,2 ]
Liu, Ying [1 ,2 ]
Huu Hao Ngo [1 ,3 ]
Guo, Wenshan [1 ,3 ]
Wang, Huizhong [1 ,2 ]
Zhang, Yufeng [1 ,2 ]
Zhang, Dan [1 ,2 ]
机构：
[1] Tianjin Chengjian Univ, Joint Res Ctr Protect Infrastruct Technol & Envir, Dept Environm & Municipal Engn, Tianjin 300384, Peoples R China
[2] Tianjin Chengjian Univ, Tianjin Key Lab Aquat Sci & Technol, Jinjing Rd 26, Tianjin 300384, Peoples R China
[3] Univ Technol Sydney, Sch Civil & Environm Engn, Ctr Technol Water & Wastewater, Sydney, NSW 2007, Australia
来源：
BIORESOURCE TECHNOLOGY | 2020年 / 318卷
关键词：
Sulfadiazine; Hybrid moving bed biofilm reactor-membrane bioreactor system; Impacts; Membrane fouling; C/N ratio; SULFONAMIDE ANTIBIOTICS; ACTIVATED-SLUDGE; REMOVAL; MICROPOLLUTANTS; SULFAMETHOXAZOLE; BIODEGRADATION; BACTERIA;
D O I：
10.1016/j.biortech.2020.124180
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
The performance and membrane fouling of a hybrid moving bed biofilm reactor-membrane bioreactor (MBBRMBR) system was evaluated when exposed to 0.5 mg/L of antibiotic sulfadiazine (SDZ). Results indicated that although SDZ reduced the removal efficiency of NH4+-N and TN (up to 12%) and TOC (up to 6%) at low C/N (2.5 and 4), it had no significant effect at high C/N (6 and 9). It was found that SDZ was removed 75% and 58% at high C/N of 9 and low C/N of 2.5, respectively. SDZ decreased the ratio of volatile biomass/total biomass and sludge particle size and increased the concentrations of extracellular polymeric substance (EPS) and soluble microbial product (SMP) in MBR. Consequently, this accelerated the membrane fouling rates, with an average increase of 6.85 kPa/d at low C/N (2.5) and 0.513-0.701 kPa/d at medium and high C/N (4, 6 and 9).
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页数：8
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