Device and method for testing filtration resistance of coarse mesh filtration membrane in dynamic membrane bioreactor

Abstract

The invention discloses a device for testing a filtration resistance of a coarse mesh filtration membrane in a dynamic membrane bioreactor. The device comprises a filtration pool (1), a filtrate collection device (3) and a detection device (4) for detecting changes of the filtrate collection device, wherein the coarse mesh filtration membrane (2) is arranged nearly the bottom of the filtration pool (1); the filtration pool (1) is divided into a sludge suspension region (11) arranged at the upper end of the coarse mesh filtration membrane (2) and a filtrate region (12) arranged at the lower end of the coarse mesh filtration membrane (2) by using the coarse mesh filtration membrane (2); the filtrate in the filtrate region is collected into the filtrate collection device ( 3); the device is characterized in that the external side of the filtration pool (1) is provided with an aeration pool (5) for carrying out sludge culture; and the sludge suspension in the aeration pool (5) is continuously transported into the sludge suspension region (11) of the filtration pool (1). The device provided by the invention has the advantages of convenience for operation, low cost and the like, and canbe used for carrying out the quantitative research on the filtration and pollution performance of the coarse mesh filtration membrane in the dynamic membrane bioreactor.

Description

technical field [0001] The invention relates to a filtration resistance testing method and device for a coarse-mesh filter membrane, which are used for quantitatively detecting and evaluating the filtration and pollution characteristics of the coarse-mesh filter membrane in a dynamic membrane bioreactor (DMBR), and belong to the technical field of wastewater biological treatment. Background technique [0002] Membrane bioreactor (MBR) has been widely used in the treatment of various types of wastewater, and has the advantages of high treatment effect, good effluent quality, and small footprint. However, the current microfiltration and ultrafiltration membranes are generally expensive, and due to the inevitable membrane fouling, they need to be cleaned and replaced regularly, which increases operating costs and limits their large-scale application to a certain extent. In recent years, DMBR technology based on the application of coarse mesh materials has been developed rapidly...

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a dynamic membrane bioreactor coarse mesh filter membrane filtration resistance test device, which solves the problem that the filtration resistance of the coarse mesh filter membrane in DMBR is difficult to test in the prior art

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