Self-forming dynamic membrane bioreactor is a potential wastewater treatment technology. In order to test the treatment effect of self-forming
dynamic membrane bioreactor, a set of parallel arrangement self-forming
dynamic membrane bioreactor was designed and constructed. Cotton cloth
was used as the dynamic membrane substrate to study the treatment effect of
low-concentration sewage. The results show that the parallel arrangement of
self-forming dynamic membrane bioreactors is not easy to clog. As a dynamic
film substrate, cotton cloth is easy to disintegrate and is not suitable as a
film substrate. The average removal rates of COD, NH3-N, TN and TP were
16.47%, 28.17%, 15.44% and 27.51% respectively. The removal efficiency of low
concentration sewage is low, and the results of domestic sewage treatment for
conventional water quality still need to be proved by experiments.