Reclaimed Water Reuse Equipment

Sewage enters the regulating tank via a grid, then is pumped to the biological reactor by a lift pump. The PLC controller activates the aerator for oxygenation. Effluent from the biological reactor is sent to the membrane separation unit by a circulation pump, with concentrate returning to the regulating tank. After chlorination disinfection via rapid mixing (sodium hypochlorite, bleaching powder, or chlorine tablets), the separated water enters the reclaimed water storage tank. The backwash pump uses treated water in the cleaning tank for membrane backwashing, with backwash sewage recycled to the regulating tank. Lift pump operation is controlled by biological reactor water level. Membrane filtration and backwash can be auto/manually controlled. For chemical cleaning, inlet and sewage circulation valves close, chemical and reagent circulation valves open, and the reagent pump starts for cleaning.

The membrane biological treatment technology for wastewater reclamation offers the following advantages:

1.Efficient solid-liquid separation removes suspended/colloidal matter and microbial communities, yielding high-quality effluent suitable for reuse without tertiary treatment, with simple process and compact footprint.

2.Maintains high biomass concentration to boost volume load, while membrane separation shortens hydraulic retention time, reducing reactor size.

3.Prevents microbial loss, promoting growth of slow-growing bacteria (e.g., nitrifiers) for smooth metabolic processes.

4.Prolongs retention of macromolecular refractory organics for enhanced degradation.

5.Like other filtration technologies, membrane fouling may reduce flux over time, but effective backwashing/chemical cleaning sustains MBR service life.

6.Simple process and automated operation make MBR ideal for urban sewage treatment.