Integrated MBR Wastewater Treatment Equipment

Overview of Integrated MBR Biofilm Wastewater Treatment Equipment

Guangdong Yuezhong Environmental Technology Co., Ltd. possesses extensive experience in the manufacturing of integrated wastewater treatment equipment. Supported by a professional technical team and construction crew, the company is capable of supplying integrated wastewater treatment systems with a processing capacity ranging from 5 to 2,000 tons per day.

 

Application Areas:

I. Domestic Wastewater

1. Urban domestic sewage, residential complexes, villa districts, and new rural communities

2. Schools, hospitals, hotels, shopping malls, office buildings, and service areas

3. Scenic spots, rural homestays, campsites, highway service areas, and other decentralized wastewater treatment sites

 

II. Municipal and Rural Wastewater

1. Construction of new township wastewater treatment stations; upgrading and standardization of existing facilities

2. Integrated rural wastewater management across contiguous areas; remediation of black and odorous water bodies

3. Advanced municipal wastewater treatment; reclaimed water reuse projects

 

III. Industrial Wastewater Treatment (Pre-treatment + Advanced Treatment)

1. Wastewater from food processing, beverage production, brewing, slaughterhouses, and livestock farming

2. Wastewater from printing & dyeing, textiles, papermaking, daily chemical products, and light industry

3. Wastewater from pharmaceuticals, biological agents, and hospital laboratories

4. Comprehensive wastewater from industrial parks; organic industrial wastewater

 

IV. Reclaimed Water Reuse & Water Recycling

1. Post-purification water reused for: landscaping irrigation, road cleaning, landscape water replenishment, cooling circulation systems, toilet flushing, etc.

2. Projects requiring high effluent quality standards, minimal land footprint, and high-level water reuse capabilities

 

V. Special Scenarios

1. Modular hospitals, quarantine facilities, and temporary medical stations

2. Ships, islands, remote construction camps, and mobile wastewater treatment units

3. Projects facing severe land constraints or lacking space to construct traditional secondary sedimentation tanks

 

Key Advantages

1. Clear effluent meeting discharge standards, suitable for direct reuse

2. Land footprint reduced by over 50% compared to traditional processes

3. Minimal residual sludge generation, ensuring hassle-free operation

4. Fully automated operation with strong resistance to shock loads

5. The preferred choice for facility upgrades and the standardization of aging treatment plants

 

The MBR Integrated Biological Wastewater Treatment System—fully known as the Membrane Bioreactor (MBR) Integrated Biological Wastewater Treatment System—is a novel, high-efficiency wastewater treatment unit that deeply integrates membrane separation technology with traditional biological treatment processes. Its core characteristics are integration, compactness, and high efficiency, enabling a one-stop solution for wastewater purification. Widely applied across various decentralized and centralized wastewater treatment scenarios, it stands as one of the leading technologies in the contemporary environmental water treatment sector. The core operating principle of this equipment lies in the synergistic interaction between "biodegradation" and "membrane separation." It breaks away from the segregated design—typical of traditional wastewater treatment processes—that separates biological treatment from solid-liquid separation, thereby achieving an organic integration of the two. During the biological treatment stage, the bioreactor housed within the equipment cultivates a dense population of active microorganisms (such as bacteria, fungi, and nitrifying bacteria). Through metabolic processes, these microorganisms efficiently decompose organic pollutants (such as COD and BOD), ammonia nitrogen, phosphorus, and other harmful substances present in the wastewater, thereby accomplishing the preliminary degradation and transformation of contaminants. Concurrently, the equipment can be configured with distinct anaerobic, anoxic, and aerobic zones—tailored to specific treatment requirements—to leverage the synergistic activity of different microbial communities; this approach intensifies nitrogen and phosphorus removal, further enhancing the quality of the purified wastewater. In the membrane separation stage, ultrafiltration (UF) or microfiltration (MF) membrane modules are employed to replace the secondary sedimentation tanks found in traditional processes. Through the physical sieving action of the membranes, active sludge, suspended solids, colloids, and high-molecular-weight organic compounds are efficiently separated from the water, resulting in an effluent that is immediately clear. Furthermore, this membrane retention capability allows for the maintenance of a high concentration of active sludge within the reactor (Mixed Liquor Suspended Solids, or MLSS, can reach 8–15 g/L—significantly higher than the 2–4 g/L typical of traditional processes). This substantially boosts biological treatment efficiency and enables the independent control of Hydraulic Retention Time (HRT) and Sludge Retention Time (SRT), thereby ensuring the continuous degradation of refractory, high-molecular-weight organic compounds within the reactor.

In terms of composition, the integrated MBR (Membrane Bioreactor) wastewater treatment system features a modular, integrated design. It consolidates the pretreatment unit, biological reaction unit, membrane separation unit, membrane cleaning unit, disinfection unit, and automated control system into a single entity, resulting in a compact structure that eliminates the need for the separate construction of multiple distinct facilities. Specifically, the pretreatment unit—comprising components such as screens and equalization tanks—primarily serves to remove large particulate impurities, hair, grit, and similar debris from the wastewater, thereby preventing the clogging of membrane modules and safeguarding downstream treatment units. The biological reaction unit constitutes the core reaction zone; it provides an optimal growth environment for microorganisms (regulating factors such as dissolved oxygen, temperature, and pH) and utilizes an aeration system to supply oxygen, thereby sustaining the metabolic activities of aerobic microorganisms. The membrane separation unit typically employs submerged hollow-fiber or flat-sheet membrane modules, which are situated within the biological reaction tank; this configuration leverages the shear forces generated by aeration to mitigate membrane fouling and extend the service life of the membrane modules. The membrane cleaning unit removes contaminants from the membrane surfaces and restores membrane flux through a combined approach of online chemical cleaning (utilizing agents such as sodium hypochlorite or citric acid solutions) and offline physical cleaning. The disinfection unit employs methods such as chlorination, ultraviolet (UV) irradiation, or ozonation to eliminate pathogenic microorganisms from the effluent, thereby ensuring the safety of the treated water. Finally, the automated control system integrates a PLC and a touchscreen interface to enable real-time monitoring of water quality and equipment operational status; it facilitates functions such as automatic parameter adjustment and fault alarming, thereby supporting unattended operation and simplifying maintenance and management.

Compared to traditional wastewater treatment equipment, integrated MBR (Membrane Bioreactor) wastewater treatment systems offer significant advantages. First, the effluent quality is exceptional and stable; the highly efficient retention capabilities of the membrane modules result in near-zero suspended solids (SS) in the effluent, with turbidity levels of ≤1 NTU. Furthermore, COD removal rates can exceed 95%, and ammonia nitrogen removal rates can surpass 97%. The treated water directly meets the Class I-A discharge standards and, following simple advanced treatment, can even be recycled for non-potable uses—such as landscaping, toilet flushing, and industrial cooling—thereby facilitating the circular utilization of water resources. Second, the system requires a minimal footprint; its integrated design eliminates the need for structures typical of traditional processes—such as secondary sedimentation tanks and flocculation-sedimentation basins—reducing the required land area to just one-quarter to one-half of that required by conventional methods. This makes it particularly well-suited for industrial parks, residential communities, and rural areas where land resources are scarce. Third, it demonstrates robust resistance to shock loads; the presence of high-concentration activated sludge enables the equipment to adapt to significant fluctuations in both influent quality and flow rates. Even in the event of a sudden surge in influent pollutant concentrations, the system maintains stable treatment performance, making it ideal for scenarios involving highly variable domestic wastewater discharge as well as the treatment of high-concentration industrial wastewater. Fourth, sludge generation is minimal; a long sludge retention time (typically 20–30 days) keeps microorganisms in the endogenous respiration phase, thereby reducing sludge yield by 30% to 50%. This minimizes sludge disposal costs and the risk of secondary pollution, potentially even achieving a state of near "zero sludge discharge." Fifth, the system features a high degree of automation and low operation and maintenance (O&M) costs; an intelligent control system enables fully automated operation, requiring only periodic inspections of the equipment and membrane modules for routine O&M—eliminating the need for professional personnel to be on duty around the clock. Moreover, the use of novel, fouling-resistant membrane materials extends their service life to 5–8 years, further reducing both maintenance costs and frequency.

Equipment Specifications