Development of a dynamic model for effective mitigation of membrane fouling through biogas sparging in submerged anaerobic membrane bioreactors (SAnMBRs)

J Environ Manage. 2022 Dec 1:323:116151. doi: 10.1016/j.jenvman.2022.116151. Epub 2022 Sep 18.

Abstract

The deterministic mechanistic model derived from the fundamental of the dynamical fouling system was investigated to estimate fouling parameters, with theoretical biogas sparging performance evaluated of a Submerged Anaerobic Membrane Bioreactor treating trade wastewater. The result showed that the sparging effectiveness of EPSc removal was average, 35% higher than the sparging effectiveness of EPSp, with the coefficient of fouling removal characterizing the dynamic time behaviour increasing with the organic loading rate. The dynamic system analysis predicted that the process gain for SAnMBR-1 was more than 30% compared with SAnMBR-2, which supported a widely known theory of fouling dependence of organic loading rate.

Keywords: Biogas sparging; Coefficient of mass deposition; Fouling control; Rate of fouling removal; Submerged anaerobic membrane bioreactors (SAnMBR); Trade wastewater.

MeSH terms

  • Anaerobiosis
  • Biofuels*
  • Bioreactors
  • Membranes, Artificial
  • Waste Disposal, Fluid
  • Wastewater*

Substances

  • Biofuels
  • Membranes, Artificial
  • Waste Water