MBR AO Integrated Sewage Treatment Equipment with AO Biochemical Process and MBR

With the rapid development of the tourism industry, urban public health construction and commercial accommodation industry, the discharge of decentralized domestic sewage from hotels, hospitals, resorts and supporting service facilities is increasing year by year. Such sewage features complex water quality, large fluctuation of water volume, high organic matter content, random discharge time and strict discharge standards, which puts forward higher requirements for sewage treatment equipment. Our MBR & AO integrated sewage treatment equipment is a customized decentralized domestic sewage treatment device developed targeting the sewage characteristics of hotels, hospitals and resorts. Combining mature AO biological treatment process and advanced MBR membrane separation technology, this equipment realizes efficient purification, intelligent operation, energy saving and land saving, and is an ideal environmental protection solution for decentralized domestic sewage treatment in commercial and public service scenarios.

The equipment adopts a dual-core technical system of AO biochemical process + MBR membrane filtration, which abandons the defects of traditional single sewage treatment equipment such as low purification efficiency, easy sludge expansion and unstable water output. The AO anaerobic-aerobic process is the core of biochemical treatment. In the anaerobic tank, the anaerobic microorganisms decompose macromolecular organic pollutants, suspended solids and nitrogen and phosphorus substances in sewage into small molecular compounds through hydrolysis and acidification reactions, effectively reducing the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) of raw water, and completing the preliminary denitrification and dephosphorization. In the subsequent aerobic tank, aerobic bacteria further oxidize and decompose residual organic pollutants, thoroughly degrade harmful substances such as ammonia nitrogen and total nitrogen, and eliminate odorous substances in sewage, realizing deep biochemical purification of sewage.

On the basis of efficient biochemical treatment, the equipped MBR membrane module replaces the traditional secondary sedimentation tank. The ultrafiltration membrane with precise pore size can efficiently intercept activated sludge, suspended solids, colloidal particles and residual microorganisms in the water body, so that the effluent water quality is far superior to that of traditional process equipment. Compared with the conventional sedimentation process, MBR membrane separation technology greatly improves the sludge concentration in the biochemical tank, enhances the biochemical reaction efficiency, reduces the floor area of the equipment by more than 30%, and completely solves the problems of sludge loss and effluent turbidity in traditional processes. Meanwhile, the membrane module has strong anti-pollution performance and long service life, with stable filtration effect and no frequent replacement, which greatly reduces the later maintenance cost of the equipment.

This integrated sewage treatment equipment adopts an all-in-one box-type integrated structure, integrating all functional units including water inlet regulation, anaerobic treatment, aerobic treatment, MBR membrane filtration, disinfection and water outlet into a closed box body. The whole equipment has a compact structure, small floor area, no need for complex civil engineering construction, and can be directly buried or placed on the ground, which is very suitable for hotels, resorts and hospitals with limited construction space and high requirements for environmental landscape. The fully closed design effectively isolates sewage odor and prevents secondary pollution, ensuring no peculiar smell, no noise and no environmental impact during operation, which meets the high environmental standards of scenic resorts and high-star hotel service areas.

In terms of operational performance, the equipment supports full-automatic intelligent operation, equipped with automatic water inlet, aeration, membrane cleaning, backwashing and fault alarm systems. It can realize 24-hour unattended operation, automatically adjust the operating frequency according to water volume and water quality changes, adapt to the large fluctuation of sewage discharge in hotel and resort peak seasons and hospital intermittent discharge, and maintain stable effluent quality at all times. The treated effluent can stably meet the national first-class discharge standard, and can be reused for landscape water replenishment, greening irrigation, toilet flushing and other water recycling scenarios, effectively saving water resources and reducing the operating cost of water use for enterprises.

Targeting the application characteristics of different scenarios, the equipment has carried out targeted optimization and upgrading. For hospital sewage containing a small amount of pathogenic bacteria and pharmaceutical residues, the equipment is equipped with a professional disinfection device, which can effectively kill bacteria and viruses in the water body while removing pollutants, ensuring safe discharge. For hotel and resort domestic sewage rich in detergent, grease and organic matter, the optimized AO biochemical proportion and high-precision MBR membrane can efficiently degrade surfactant and grease substances, avoiding water body foaming and eutrophication problems. In addition, the equipment has strong corrosion resistance and weather resistance, adopts anti-corrosion steel and anti-aging membrane materials, and can operate stably for a long time in various outdoor and indoor environments with a service life of more than 15 years.

In conclusion, our MBR & AO integrated sewage treatment equipment integrates the advantages of mature biochemical technology and advanced membrane separation technology, with the core advantages of stable water output, high purification efficiency, energy saving and low consumption, simple maintenance and wide adaptability. It perfectly solves the decentralized domestic sewage treatment problems of hotels, hospitals, resorts and other places, complies with strict environmental protection discharge standards, and provides reliable, economical and efficient green environmental protection solutions for commercial and public infrastructure sewage treatment.