MBR membrane manufacturers: key points of MBR biochemical process control
With the increasing awareness of environmental protection and the increasing scarcity of water resources, membrane bioreactor (MBR) technology has been widely applied and promoted as an efficient and reliable wastewater treatment technology.
As a manufacturer and supplier of MBR membranes, we are well aware of the key points of their biochemical process control. In order to help more people gain a deeper understanding of the operating principles and control points of MBR membranes, we will reveal the key points of MBR biochemical process control in this article.
1. Selection and design of membrane materials
The selection and design of MBR membranes are the foundation for ensuring efficient and stable operation of biochemical processes. In the selection of MBR membranes, we need to consider factors such as membrane material, pore size, and mechanical strength. Common membrane materials include polypropylene film, polyethylene film, and polyester film, and different membrane materials are suitable for different wastewater treatment processes. In addition, the pore size of the membrane also needs to be selected based on the particle size of suspended solids in the wastewater to ensure that the wastewater can smoothly pass through the membrane pores and prevent further entry of suspended solids.
2. Operational parameter control of bioreactors
The bioreactor is the core part of the MBR membrane biochemical process, and the control of its operating parameters can effectively affect the effectiveness of the biochemical reaction. Firstly, it is necessary to control the inflow water quality reasonably to ensure that the COD, ammonia nitrogen and other indicators in the wastewater are within a certain range; Secondly, control the pH value during the hydrolysis and acidification stage, usually between 6.5 and 7.5, to facilitate the degradation of organic matter; Finally, control the dissolved oxygen (DO) content during the anaerobic and aerobic stages to meet the aerobic conditions of microorganisms.
3. Optimization of mixing and ventilation
Mixing and ventilation are crucial steps in the MBR biochemical process. By using appropriate mixing methods, the contact between organic matter and microorganisms in wastewater can be promoted, and the utilization rate of organic matter can be improved. Meanwhile, ventilation can provide sufficient oxygen supply, promote the growth of aerobic microorganisms and the degradation of active substances. Therefore, the reasonable setting of mixing and ventilation equipment is crucial for the biochemical process of MBR membranes.
4. Cleaning and maintenance of membranes
As the core component of bioreactors and filters, MBR membranes need to be regularly cleaned and maintained to ensure their stable operation and long service life. The cleaning method can adopt a combination of physical cleaning and chemical cleaning, using water flushing and back blowing to remove pollutants on the membrane surface; The maintenance methods include maintenance and replacement of membrane components, regular inspection of the condition of membrane components, and timely detection and handling of problems.
5. Data monitoring and analysis
Monitoring and analyzing the biochemical process of MBR membrane can help to timely understand its operating status, identify problems, and take corresponding measures. Common monitoring parameters include inlet and outlet water quality, membrane flux By monitoring and analyzing the removal rates of COD and ammonia nitrogen, the operational efficiency and performance of MBR membranes can be evaluated, and the operating parameters can be adjusted to achieve better wastewater treatment results.
MBR membrane, as an efficient and reliable wastewater treatment technology, has achieved significant results in practical applications. By selecting membrane materials reasonably, controlling the operating parameters of bioreactors, optimizing mixing and ventilation methods, regularly cleaning and maintaining membrane components, and conducting data monitoring and analysis, we can achieve efficient control of the biochemical process of MBR membranes and further optimize the wastewater treatment effect.
Thank you for reading this article. I believe that by gaining a deeper understanding of the key points of MBR membranes in biochemical processes, you will have a clearer understanding of the operating principles and wastewater treatment effects of MBR membranes. If you need to learn more about MBR membranes, please feel free to contact us at any time.