BF-MBR (Biological Fluidized Bed Membrane Bioreactor) is an emerging wastewater treatment technology that combines the advantages of a biological fluidized bed and an MBR membrane reactor. The purpose of this paper is to introduce the research progress of BF-MBR wastewater treatment and membrane pollution control.
The BF-MBR process has a number of advantages. First of all, through the bottom gas injection and external circulation, BF-MBR can maintain the suspension of biological particles in the wastewater, so that the wastewater is in full contact with the biological particles, and effectively improve the biodegradation efficiency. Secondly, MBR membrane technology can achieve a high degree of solid-liquid separation and improve the stability and sustainability of effluent quality. In addition, the BF-MBR process has a small space footprint and excellent membrane flux, making it suitable for treating highly concentrated and refractory wastewater.
Membrane fouling is one of the main challenges faced by the BF-MBR process. Membrane fouling can lead to decreased membrane flux, higher operating costs, and impact on wastewater treatment. Therefore, the control of membrane fouling has become the focus of BF-MBR research. Studies have shown that the main types of membrane fouling include physical blockage, biofilm attachment, and colloidal fouling. To control membrane fouling, researchers have adopted a variety of strategies, including selecting the right membrane material, optimizing operating parameters, and introducing advanced pretreatment and cleaning techniques.
In recent years, a series of advances have been made in the research of BF-MBR wastewater treatment and membrane pollution control. The researchers conducted in-depth research on the operating parameters of BF-MBR, such as gas flow rate, reflux ratio, mixture concentration, etc., to optimize the wastewater treatment effect. In addition, some innovative technologies have been introduced, such as enzymatic treatment, electrolytic oxidation, and advanced oxidation, to improve biodegradation efficiency and control membrane fouling.
BF-MBR is a promising wastewater treatment technology with the advantages of high efficiency, stability and sustainability. However, membrane fouling remains a major challenge for BF-MBR. Future research should focus on solving the problem of membrane fouling and developing new membrane materials and technologies to improve the operational performance and practical application value of BF-MBR.
Anti-sticking agent solves the problem of MBR membrane sludge blockage.