When it comes to MBR membrane technology, it is truly a "versatile" in the wastewater treatment industry. Whether it is domestic sewage or various types of wastewater discharged from factories, it can handle them with precision. Today, let's break it apart and talk about which wastewater treatment scenarios it is suitable for. We guarantee to speak in a down-to-earth manner, so that you can understand immediately.
First, let's talk about the most familiar domestic sewage treatment. Think about it. Every day in the community and city, a large amount of domestic sewage is discharged. There is everything in it. The oil stain in the kitchen, the foam in the bath, and the dirt in the toilet are very complicated. In the past, the treatment of this type of sewage often relied on old methods such as sedimentation tanks and filtration tanks. Although the treated water met the standards, it was almost impossible to reuse it for purposes such as flushing toilets or watering plants. Once the MBR membrane process is implemented, the situation is different. Its membrane is like a super fine sieve, which can trap bacteria, impurities, organic matter, and other substances in sewage. The resulting water is very clear, not to mention flushing toilets or watering plants. In some places, after simple treatment, it can also be used to supplement river landscape water, which greatly improves the utilization rate of water resources. Nowadays, many newly built residential sewage treatment stations and upgraded sewage treatment plants in cities love to use MBR membrane technology, because they value its good treatment effect and stable effluent quality.
Speaking of industrial wastewater, it is a tough nut to crack. The wastewater discharged from different factories varies greatly, but MBR membrane technology can still hold on.
Take food processing plants as an example. Whether it's making fruit juice, brewing beer, or processing meat, the wastewater discharged contains a large amount of organic matter, such as sugar, protein, oil, etc. If directly discharged, it can easily cause eutrophication of the water body and pollute the environment. When MBR membrane technology is used to treat such wastewater, the microorganisms in the activated sludge first "eat" these organic substances, and then the membrane completely separates the sludge and water. The treated water not only has low organic content, but also high clarity. Some food factories can even recycle the treated water into the production process, saving costs and reducing pollution, which is like killing two birds with one stone.
The wastewater from pharmaceutical factories is even more complex, as it may contain various residual drug components, chemical solvents, and some difficult to degrade organic compounds, making it particularly difficult to treat. Ordinary treatment processes are difficult to completely remove these harmful substances, while MBR membrane technology, with its efficient retention ability, can firmly lock these pollutants in the sludge and prevent them from running into the effluent. Moreover, the presence of the membrane can increase the concentration of microorganisms in the reactor. For those difficult to degrade pollutants, microorganisms have more time and opportunity to "decompose" them, greatly improving treatment efficiency. Nowadays, many pharmaceutical companies are adopting MBR membrane technology to treat wastewater in order to meet strict environmental standards.
The wastewater from electronic factories is also difficult to deal with, often containing heavy metal ions such as copper, nickel, lead, and some chemicals used for cleaning circuit boards. If these things are not treated properly, they can pose a great threat to soil and groundwater. The MBR membrane process can be used in conjunction with some chemical treatment methods when treating electronic wastewater. First, heavy metal ions are transformed into precipitates through chemical precipitation, and then the membrane intercepts these precipitates along with other impurities. The heavy metal content in the treated water can be reduced to a very low level, fully meeting the discharge standards. Moreover, electronic factories have high requirements for water quality. After deep treatment, the treated water can be reused in the cleaning process of production, which is both environmentally friendly and economical.
In addition to these, MBR membrane technology has also shown good performance in the treatment of chemical wastewater and printing and dyeing wastewater. Chemical wastewater is complex in composition and contains various toxic and harmful chemicals. MBR membrane technology can improve the degradation efficiency of microorganisms towards these substances; Printing and dyeing wastewater has a deep color and high organic content. MBR membrane technology can effectively remove chromaticity and organic matter, making the discharged water no longer "colorful".
There is also hospital wastewater, which is a major issue related to public health and safety. Hospital wastewater contains a large amount of bacteria, viruses, as well as some disinfectants and drug residues. The membrane of MBR membrane technology can act as a sturdy barrier, blocking these bacteria and viruses on one side of the membrane, preventing them from spreading out with the effluent, greatly reducing the risk of disease transmission. Moreover, disinfecting the treated water is more convenient and can ensure water quality safety, so MBR membrane technology is indispensable in many hospitals' sewage treatment systems nowadays.
In addition, MBR membrane technology can also play a significant role in wastewater treatment in some special industries. For example, in the treatment of leachate from garbage and the water seeping out of landfills, not to mention the pungent smell, the concentration of pollutants inside is frighteningly high, including various organic compounds, heavy metals, ammonia nitrogen, etc., making the treatment extremely difficult. Previously, the treatment of leachate from garbage often required multiple process combinations, with complex processes and high costs. The emergence of MBR membrane technology simplifies the treatment process, which can efficiently remove organic matter and ammonia nitrogen from leachate, with stable treatment effect, providing strong guarantee for the standard discharge of garbage leachate.
Overall, MBR membrane technology is like a "panacea". Whether it is domestic sewage, various industrial wastewater, or special industry wastewater, it can be treated with different methods according to different water quality characteristics to achieve good treatment effects. With the continuous advancement of technology, the cost of MBR membrane is getting lower and the service life is getting longer. We believe that it will be widely used in the field of wastewater treatment, making greater contributions to our environmental protection and water resource recycling.
