The wastewater diffuser assembly and the wastewater treatment tank including the assembly include a flexible wastewater diffuser membrane and a wastewater diffuser body. The flexible wastewater diffuser membrane defines a circumferential curl. The wastewater diffuser body defines the underlying flexible wastewater The circular plate of the diffuser film, and the edge ring covering the covering part of the circumferential crimp.
The edge ring defines an inner surface conforming to the outer shape of the covering portion of the circumferential bead. The edge ring is integrated with the waste water diffuser body. This type of waste water diffuser assembly can provide disposable waste water diffusion The component selection of the disposable waste water diffuser has many advantages compared with conventional technologies, such as improved ease of installation, lower weight and lower cost.