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Korean Journal of Chemical Engineering

, Volume 36, Issue 2, pp 265–271 | Cite as

Development of sequential batch ozonated adsorptive membrane bioreactor to mitigate fouling with reduced energy consumption

  • Kavitha Nagarasampatti Palani
  • Darshini Saravanan
  • Kamalakannan Vasantha Palaniappan
  • Shanmuga Sundar
  • N. BalasubramanianEmail author
Separation Technology, Thermodynamics
First Online:
  • 5 Downloads

Abstract

The present study focuses on overcoming the drawback as fouling in a membrane bioreactor (MBR), which can be alleviated by integrating advanced oxidation process, adsorption, and biofilm carriers in the activated sludge process. The optimal sludge retention time, carbon and ozone dosage was 150 minutes, 15 g and 1.5 Lmin-1, respectively. The percentage removal was observed to be above 90% for chemical oxygen demand and total organic carbon whereas for total dissolved solids was only 40% under transmembrane pressure of 20 kPa. The increase in permeate flux was 30% as compared to MBR. Sequential batch membrane bioreactor (SBMBR) showed 12% reduction in energy consumption for three hour operation at the flow rate of 0.72 L/h (transmembrane pressure 20 kPa), and it was confirmed in the SEM of carbon, membrane, UV, CV and HPLC also. The energy consumption required also confirms the less internal fouling via the extended backwash of four hours.

Keywords

Sequential Batch Reactor Biofilm Carriers Activated Carbon Ozonation Permeate Flux Activated Sludge Process 
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Copyright information

© Korean Institute of Chemical Engineers, Seoul, Korea 2019

Authors and Affiliations

  • Kavitha Nagarasampatti Palani
    • 1
  • Darshini Saravanan
    • 2
  • Kamalakannan Vasantha Palaniappan
    • 1
  • Shanmuga Sundar
    • 1
  • N. Balasubramanian
    • 1
    Email author
  1. 1.Department of Chemical Engineering, AC TechAnna UniversityChennaiIndia
  2. 2.Department of ChemistryWomen’s Christian CollegeChennaiIndia

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