Study of shock load resistance of MBBR media

MBBR (Moving Bed Biofilm Reactor), as an advanced biological treatment technology, has been widely used in the field of wastewater treatment. Its core is the biofilm reactor, and the quality and stability of the biofilm directly affect the treatment efficiency and stability of the system. The aim of this study is to investigate the resistance and adaptability of MBBR media in the face of shock loading.

During wastewater treatment, MBBR Carrier often face sudden changes in flow and loading, such as discharge fluctuations and changes in chemical concentrations, which may adversely affect the biofilm and reduce the treatment efficiency of the system. Therefore, it is critical to understand the performance of MBBR media under shock loading.

A range of experimental methods were used in the study, including batch tests, continuous flow tests and analysis of biofilm samples. The performance of MBBR media under different shock loading conditions was assessed by monitoring biofilm attachment, ammonia and total nitrogen removal.

The results of the study showed that the MBBR Filter Media has a certain resistance to shock loading. Under short-term loading, the biofilm attachment and ammonia nitrogen removal rate decreased, but the system was able to recover to a stable state in a short time. In contrast, under long-term loading shocks, biofilm attachment and ammonia nitrogen removal may continue to decline, and it is necessary to restore the treatment capacity of the system by adjusting the operation strategy or increasing the amount of media.

In addition, it was found that the type and morphology of MBBR media have an effect on its shock loading resistance. Some media types that are more adapted to high-load environments may show better adaptability and stability.

In summary, this study provides an important reference for understanding the response mechanisms and regulation strategies of MBBR systems in the face of shock loading. Future studies can further explore the microbial community structure and functional properties of MBBR media, and their association with system performance, so as to gain a deeper understanding of the working principle and optimisation methods of MBBR systems.