Comprehensive Introduction to MBR Integrated Sewage Treatment Equipment

MBR (Membrane Bioreactor) integrated sewage treatment equipment is a compact and modular environmental protection device that innovatively integrates membrane separation technology with traditional biological treatment processes. Serving as an upgraded alternative to conventional sewage treatment facilities, it is widely adopted for municipal sewage, industrial wastewater and decentralized domestic sewage treatment, featuring superior effluent quality, small footprint and intelligent operation.

The equipment operates based on the synergistic effect of biochemical degradation and physical membrane interception. Its internal anaerobic, anoxic and aerobic zones enable microorganisms to decompose organic pollutants, complete denitrification and phosphorus removal efficiently. Replacing traditional secondary sedimentation tanks, high-precision membrane components intercept sludge, suspended solids, bacteria and macromolecular impurities independently. This realizes separate control of hydraulic retention time (HRT) and sludge retention time (SRT), ensuring stable treatment effect and effectively avoiding sludge bulking problems.

The highly integrated system consists of pretreatment, biological reaction, membrane separation, auxiliary and automatic control units. With a high sludge concentration of 8,000–20,000mg/L, it boasts high treatment efficiency, 40%–50% smaller floor area and 30%–50% less excess sludge output than traditional processes. The fully automatic PLC control system supports unattended operation and remote monitoring, greatly reducing manual maintenance costs. The treated effluent stably meets Class A discharge standards and even surface water Class IV standards, available for greening irrigation and industrial reuse.

Currently, the main challenges include slight membrane fouling and moderate initial investment, which can be effectively mitigated via regular physical and chemical cleaning and optimized operational parameters. Widely applicable to residential communities, villages, medical institutions and light industrial parks, the equipment presents prominent development trends of membrane material upgrading, intelligent digitalization, composite process integration and low-carbon recycling. It has become a core facility for modern sewage treatment and water resource recycling, promoting efficient and eco-friendly development of the environmental protection industry.