WANGFeng-xue,ZHANGXin-bo,SHANGYu-tong,et al.MBBR-MBR System for Removal of Sulfadiazine and Its Membrane Fouling Characteristics[J].China Water & Wastewater,2023,39(1):80-85.
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MBBR-MBR System for Removal of Sulfadiazine and Its Membrane Fouling Characteristics

China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU] volume: 第39卷 Number: 第1期 Page: 80-85 Column: Date of publication: 2023-01-01
Author(s):
WANG　Feng-xue1;  ZHANG　Xin-bo1; 2;  SHANG　Yu-tong1; 2;  Huu Hao NGO1;  ZHANG　Zu-min1; 2;  WEN　Hai-tao1; 2;  QI　Li1; 2
（1. School of Environmental and Municipal Engineering， Tianjin Chengjian University， Tianjin 300384， China； 2. Tianjin Key Laboratory of Aquatic Science and Technology， Tianjin Chengjian University， Tianjin 300384， China）
Keywords:
MBBR;  MBR;  sulfadiazine;  antibiotics;  membrane fouling
Abstract:
A coupled MBBR-MBR system was constructed to explore its enhanced performance for removing sulfadiazine (SDZ) from wastewater with low ratio of carbon to nitrogen (C/N=2.5), and to evaluate the effect of SDZ on conventional pollutants removal and membrane fouling. The removal rate of SDZ (0.5 mg/L) by the MBBR-MBR coupling system was up to 61.9%, and the average removal rates of SDZ by MBBR and MBR were 42.3% and 15.4%, respectively. The presence of SDZ reduced the removal rate of ammonia nitrogen, total nitrogen and total organic carbon and the simultaneous nitrification and denitrification rate by 11.81%, 8.41%, 5.77% and 3.40%, respectively. In addition, the average particle size of sludge was reduced by 3-4 μm, the polysaccharide concentration of soluble microbial products (SMP) in MBR was increased by 0.35 mg/gMLVSS, and the growth rate of transmembrane pressure in MBR was increased by 0.36 kPa/d, indicating that SDZ led to the increase of membrane fouling rate.
Last Update: 2023-01-01