Fate of pharmaceuticals during membrane bioreactor treatment: Status and perspectives

Yanling Gu1, Jinhui Huang1, Guangming Zeng1

  • 1College of Environmental Science and Engineering, Hunan University, Changsha, Hunan 410082, China; Key Laboratory of Environmental Biology and Pollution Control, Hunan University, Ministry of Education, Changsha, Hunan 410082, China.

Bioresource Technology
|August 29, 2018
PubMed

Insights

Pharmaceuticals in wastewater are a growing concern. Membrane bioreactors (MBRs) show promise for removing these emerging pollutants, but further research is needed to optimize their effectiveness.

Area of Science:

  • Environmental Science
  • Chemical Engineering
  • Water Treatment Technology

Background:

  • Pharmaceuticals are recognized as emerging pollutants in surface waters and wastewater treatment plants (WWTPs).
  • Their presence poses a significant environmental and health concern.
  • Membrane bioreactors (MBRs) are increasingly studied for their potential in pharmaceutical removal.

Purpose of the Study:

  • To review the sources and occurrence of pharmaceuticals in WWTP influents.
  • To comprehensively discuss pharmaceutical removal in MBRs, including influencing factors and mechanisms.
  • To identify knowledge gaps and future research directions for pharmaceutical elimination in MBRs.

Main Methods:

  • Literature review of experimental studies on pharmaceutical removal during MBR treatment.
  • Analysis of key factors affecting removal, such as MBR configuration and process parameters.
  • Discussion of proposed biodegradation and adsorption mechanisms.
  • Review of pharmaceutical transformation products.

Main Results:

  • MBRs are a focal point for research on pharmaceutical removal from wastewater.
  • Various factors influence the efficiency of pharmaceutical elimination in MBRs.
  • Biodegradation and adsorption are key mechanisms involved in pharmaceutical removal.
  • Transformation products of pharmaceuticals are also generated and require consideration.

Conclusions:

  • MBRs show potential for pharmaceutical removal, but optimization is needed.
  • Further research should focus on multiple influence factors, enhanced removal methods, and essential removal pathways.
  • Understanding the effects of pharmaceuticals on membrane fouling and improving the detection of transformation products are critical research areas.

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