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 on bioremediation productivity, such as material shapes, pores, and surface area. 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.

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Key Points:

  • Innate and versatile bio media carriers in MBBR and their attributes.
  • Biomedia carriers are highly preferred for wastewater treatment.
  • The geometry of biofilm carriers directly influences the efficiency of MBBR.
  • Material shapes, pore size and surface area directly impact the bioremediation process.
  • The biofilm thickness and controlled scaling affect the performance of MBBR.

More Information:

Raj Deena S, Kumar G, Vickram AS, Rani Singhania R, Dong CD, Rohini K, Anbarasu K, Thanigaivel S, Ponnusamy VK*(庫碼). Efficiency of various biofilm carriers and microbial interactions with substrate in moving bed-biofilm reactor for environmental wastewater treatment. Bioresour Technol. 2022 Sep;359:127421. doi:10.1016/j.biortech.2022.127421. (SCIE, IF2021: 11.889, 11/158=6.96% in BIOTECHNOLOGY & APPLIED MICROBIOLOGY)

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