Efficiency of various biofilm carriers and microbial interactions with substrate in moving bed-biofilm reactor for environmental wastewater treatment

Santhana Raj Deena, Gopalakrishnan Kumar, A. S. Vickram, Reeta Rani Singhania, Cheng Di Dong, Karunakaran Rohini, K. Anbarasu, S. Thanigaivel, Vinoth Kumar Ponnusamy

Research output: Contribution to journalReview articlepeer-review

6 Citations (Scopus)


In a moving bed-biofilm reactor (MBBR), the fluidization efficiency, immobilization of microbial cells, and treatment efficiency are directly influenced by the shape and pores of biofilm carriers. Moreover, the efficacy of bioremediation mainly depends on their interaction interface with microbes and substrate. This review aims to comprehend the role of different carrier properties such as material shapes, pores, and surface area on bioremediation productivity. A porous biofilm carrier with surface ridges containing spherical pores sizes > 1 mm can be ideal for maximum efficacy. It provides diverse environments for cell cultures, develops uneven biofilms, and retains various cell sizes and biomass. Moreover, the thickness of biofilm and controlled scaling shows a significant impact on MBBR performance. Therefore, the effect of these parameters in MBBR is discussed detailed in this review, through which existing literature and technical strategies that focus on the surface area as the primary factor can be critically assessed.

Original languageEnglish
Article number127421
JournalBioresource technology
Publication statusPublished - 2022 Sept

Bibliographical note

Funding Information:
This work was supported partially by the Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan from The Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE) in Taiwan and by Kaohsiung Medical University Research Center Grant (KMU-TC109A01-1, KMUTC111IFSP01). This research work was also supported financially by the grant MOST110-2113-M-037-009- from Ministry of Science and Technology, Taiwan. Authors also thank for the support of Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, India.

Publisher Copyright:
© 2022 Elsevier Ltd

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal


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