MBR membrane bioreactor for wastewater treatment
With the advancement of technology and the enhancement of environmental awareness, high-tech sewage treatment technology is increasingly receiving attention. Among them, MBR membrane bioreactors have become a shining star in the field of wastewater treatment due to their high efficiency and environmental friendliness.
1.Introduction to MBR membrane bioreactor
MBR， Membrane Bio Reactor is a wastewater treatment equipment that combines membrane separation technology with biological treatment technology. It achieves efficient solid-liquid separation through ultrafiltration and microfiltration membrane separation technology, greatly improving the efficiency and water quality of sewage treatment.
2. The advantages of MBR membrane bioreactors
Efficient removal of pollutants: MBR technology can efficiently remove pollutants such as COD, suspended solids, and turbidity, with a removal rate of over 90%, making the water quality of wastewater discharge better. Meanwhile, the microporous structure of the membrane module can effectively block microorganisms such as bacteria and viruses, ensuring the hygiene and safety of the effluent.
High biological concentration and small footprint: Due to the efficient separation effect of membrane components, The biological concentration (MLSS) in the MBR system can reach up to 10000mg/L, which is much higher than traditional processes. Therefore, The volume of MBR reactors can be significantly reduced, occupying less ground area, which is particularly important for urban sewage treatment.
Low sludge production: In the MBR process, the accumulation of sludge is reduced, and the cost of sludge treatment is correspondingly reduced. Meanwhile, The difficult to degrade organic matter in MBR is fully decomposed, and the remaining sludge amount is further reduced, reducing the difficulty and cost of subsequent treatment.
Excellent denitrification effect: The membrane module can effectively intercept nitrifying bacteria, ensuring the smooth progress of nitrification reaction, thereby improving the denitrification effect of MBR system. This is of great significance for treating wastewater with high nitrogen content.
Strong shock load resistance: High concentration activated sludge and long sludge age give MBR systems strong shock load resistance, which can adapt to various water quality fluctuations and maintain stable treatment effects.
High degree of automation: The MBR system is easy to automatically control, easy to operate and manage, and saves labor costs. This is in line with the development trend of modern sewage treatment, improving operational efficiency and management level.
Reuse of reclaimed water: The high-quality effluent after MBR treatment can be directly used for reclaimed water reuse, such as industrial cooling, greening, road cleaning, etc., to achieve the resource utilization of sewage. This not only saves water resources, but also promotes the development of circular economy.
3、 Conclusion
With many advantages, MBR membrane bioreactor technology has been widely applied in various fields such as municipal wastewater, industrial wastewater, and domestic wastewater. As a representative of high-tech sewage treatment technology, MBR will continue to play an important role in environmental protection, helping to achieve sustainable use of water resources and harmonious development of the environment.