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Comparion of MBR performance when Naproxen or Norfloxacin existed in sewage water
Li Tang 1,Xue-jun Tan 2 *,Jiang-ping Qiu 1
1.School of Agriculture and Biology, Shanghai Jiaotong University, 200240
2.Shanghai municipal engineering design institute (group) co., LTD., 200092
*Correspondence author
#Submitted by
Subject:
Funding: Specialized Research Fund for the Doctoral Program of Higher Education of China (No.No. 2012-00731-20071)
Opened online:23 December 2014
Accepted by: none
Citation: Li Tang,Xue-jun Tan,Jiang-ping Qiu.Comparion of MBR performance when Naproxen or Norfloxacin existed in sewage water[OL]. [23 December 2014] http://en.paper.edu.cn/en_releasepaper/content/4623351
 
 
Anti-inflammatory agent (Naproxen) and antibiotics (Norfloxacin) were added into the sewage water separately to assess their effect on MBR performance. Membrane bioreactors show lower organic matters and nutrients removal when pharmaceuticals existed in treated water. Compared with traditional sewage water removal rate (COD was 89.84%, NH4+-N was 90.83%), the existence of Naproxen or Norfloxacin resulted in lower removal rate for COD (90.37% and 87.46%, respectively) and NH4+-N (70.12% and 73.68%,respectively). Undesirable settling property of active sludge was illustrated when adding Naproxen or Norfloxacin (even in low doses) into the test water. According to the TTC-ETS bioactivity test, Naproxen showed more poison effect than Norfloxacin, which was in accordance with the sludge sedimentation performance. Membrane fouling was illustrated by SEM and trans-membrane pressure analysis. The excess organic matter retained by membrane led to increasing membrane pollution. Critical pressure was reached about 30h ahead of normal time.
Keywords:environment enginering; naproxen; norfloxacin; MBR
 
 
 

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