Features: 
1. Efficient solid-liquid separation, separating suspended substances, colloidal substances, and microbial flora lost from biological units in wastewater from purified water. The separation process is simple, requires a small footprint, and produces high-quality effluent that generally does not require tertiary treatment for reuse. 
2. Maintains a high concentration of biomass within the biological treatment unit, significantly increasing the volumetric load. Meanwhile, the high efficiency of membrane separation greatly reduces the hydraulic retention time of the treatment unit, correspondingly reducing the footprint of the biological reactor. 
3. Prevents the loss of various microbial flora, promoting the growth of slow-growing bacteria (such as nitrifying bacteria), thereby facilitating the smooth progress of various metabolic processes in the system. 
4. Extends the retention time of some large-molecule, hard-to-degrade organic substances, aiding in their decomposition. 
5. Like other filtration and separation technologies, membrane treatment technology experiences membrane clogging as a filtering medium during long-term operation, with water throughput gradually decreasing over time. Effective backwashing and chemical cleaning can slow the decline in membrane flux and maintain an effective service life. 
6. The process is simple and easy to operate.