Ultrafiltration membrane aeration plate and method thereof

Abstract

The invention discloses an ultrafiltration membrane aeration plate and a method thereof. The bottom of the aeration plate is provided with a base seat, after the base seat is slotted, a starting end adhesive, a main body adhesive and a tail end adhesive are respectively filled in the left side, center and the right side of the base seat, and the ultrafiltration membrane is paved and solidified as a whole. The top end of the main body adhesive is lower than the top end of the base seat and the 75% of the circumference of the ultrafiltration membrane is flooded and sealed. The top end of the starting end adhesive is flushed with the top end of the base seat, and a starting end of the ultrafiltration membrane is fixed. The starting end of the ultrafiltration membrane is opened from an air distribution cavity inside the starting end adhesive, the air distribution cavity is connected with an air supply device by virtue of an air inlet pipe. The top end of the tail end adhesive is flushed with the top end of the base seat, and the tail end of the ultrafiltration membrane is fixed and sealed. Due to adoption of the ultrafiltration membrane aeration plate disclosed by the invention, air is cut into ultra-fine air bubbles of which the sizes are 10-100nm and is forced to be in contact with the liquid-phase main body and thus the air-liquid mass transfer efficiency and the effective utilization rate of the air are improved. The amount of the actual air supply of a biological treatment system is significantly reduced, meanwhile, the strong impact caused by high air velocity can be also avoided, the stability and operational flexibility of the system are improved and the ultrafiltration membrane aeration plate has good economic and environmental benefits.

Description

technical field [0001] The invention relates to an aeration device, in particular to an ultrafiltration membrane aeration plate and a method thereof. Background technique [0002] Aeration diffusion is one of the core technologies of the sewage biological treatment system, and its essence is to promote the mass transfer of oxygen from the gas phase to the liquid phase. The transfer of oxygen from the gas phase to the liquid phase requires the formation of a gas-liquid contact interface by means of fluid flow. The aerator is the key equipment to undertake the function of aeration and diffusion, and its function is to promote the mass transfer of oxygen. At present, the gas-phase fluid active movement type aerator is commonly used, which generates a three-dimensional continuous gas-liquid contact surface through the upward movement of the bubbles, and then completes the process of transferring oxygen from the gas phase to the liquid phase. [0003] According to the mass tran...

AI Technical Summary

Problems solved by technology

If this membrane material can be applied to the field of aeration and diffusion, it can solve the problem of too large pore size and low mass transfer rate of traditional aerators

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