The core function of MBR membranes is to combine biological treatment with membrane separation technology, simultaneously achieving pollutant degradation and efficient solid-liquid separation during wastewater treatment, thus replacing traditional secondary sedimentation tank processes.
The most important function of MBR membranes is efficient solid-liquid separation. It completely separates activated sludge from treated water through microfiltration or ultrafiltration membranes, resulting in effluent virtually free of suspended solids and sludge particles. This separation method is more thorough than traditional sedimentation, producing more stable effluent quality and effectively avoiding treatment fluctuations caused by sludge bulking.
MBR membranes significantly improve biological treatment efficiency. Because the membrane module can completely retain sludge within the reactor, the system can maintain a higher sludge concentration and a longer sludge age, thereby enhancing the degradation capacity for organic pollutants, ammonia nitrogen, and other pollutants. This makes the overall biological treatment system more powerful and can significantly reduce the footprint.
MBR membranes also have effluent reuse and resource recovery functions. Water treated by MBRs typically meets high standards and can be directly used for municipal miscellaneous water use, greening irrigation, or industrial reuse. In regions with scarce water resources or strict emission standards, MBR technology has become an important technological approach for advanced wastewater treatment and reuse.