The anammox coupled membrane bioreactor (MBR) process is a highly efficient denitrification technology that is widely used in wastewater treatment. The purpose of this study was to explore the denitrification mechanism of anaerobic ammonia oxidation coupled MBR process.
The experimental results show that the anammox coupled MBR process can efficiently achieve nitrogen removal. First, the anammox process converts ammonia nitrogen from wastewater into nitrogen through an anaerobic reaction. Under anaerobic conditions, certain bacteria (Anammox bacteria) use ammonia-oxidizing bacteria to oxidize nitrite and ammonia nitrite to synthesize intracellular urease, which further synthesizes nitrogen. This anammox reaction effectively reduces the concentration of nitrogen.
Secondly, the MBR process combines membrane filtration and bioreaction processes to achieve effective separation of solid particles and microorganisms and removal of suspended solids. Through membrane bioreactors, solid particles and microorganisms in wastewater can be trapped on microporous membranes, thus improving the purification of water quality. In the anaerobic ammonia oxidation coupled MBR process, the MBR membrane also plays a role in protecting Anammox bacteria and ammonia oxidizing bacteria, and provides an excellent microbial growth environment.
In addition to the study of the denitrification mechanism, the anaerobic ammonia oxidation coupled MBR process also has other features and advantages. First of all, the process can adapt to the treatment needs of high-concentration ammonia nitrogen wastewater, reducing the cost and energy consumption of wastewater treatment. Secondly, the application of membrane filtration technology can reduce the generation of sludge and the difficulty of sludge treatment, save space and reduce operating costs. In addition, the anammox coupled MBR process has high operational stability and robustness, and is able to adapt to complex treatment conditions and changes in wastewater composition.
In conclusion, the research on the denitrification mechanism of the anaerobic ammonia oxidation coupled MBR process shows potential. Through the coupled application of the anaerobic ammonia oxidation process and MBR technology, the process can efficiently remove nitrogen from wastewater and reduce potential pollution to the environment. However, further research is still needed to better understand the operating parameters and microbial properties of the anaerobic ammonia coupled MBR process to further improve the stability and applicability of the process.
Anti-sticking agent solves the problem of MBR membrane sludge blockage.