Biodisc reactor disc and manufacturing method thereof

Abstract

The invention discloses a biodisc reactor disc and preparing method, which comprises the following steps: making the disc as three-layer structure; making middle layer as basal body (8) constructed by circular polypropylene disc; selective solidifying a activated char layer on the two sides of basal body (8); mixing bisphenol A epoxide resin and ethanediamine agent; finishing hardener; preconditioning activated char particle with chemical oxidation-iron ion covering technology; solidifying activated char particle on the tow sides of polypropylene disc with hardener. This invention possesses merits of big surface area, hard, light, non-deform and good capacity of biological adsorption.

Description

Technical field: [0001] The invention relates to a rotary disc reactor disc used in a biological rotary disc reactor for treating medium and low-concentration domestic sewage and industrial wastewater and a special method for manufacturing the disc. Background technique: [0002] The biological turntable reactor is usually composed of four parts: the contact oxidation tank, the disc, the rotating shaft and the driving device. During the operation of the biological turntable, about 40% to 50% of the discs are immersed in the wastewater, and the motor drives the discs to rotate. The biofilm on the disc is in contact with the air and wastewater alternately, adsorbs the organic matter in the wastewater when immersed in the wastewater, absorbs the oxygen in the air when exposed to the air, thereby decomposing the organic matter. The material of the disc is an important factor that determines the processing efficiency of the biological turntable. At present, the commonly used disc...

AI Technical Summary

Problems solved by technology

[0003] In order to understand the problems of the discs of the bio-rotary reactor in the prior art such as corrosion resistance, easy deformation, insufficient roughness, low processing efficiency, and short service life, the present invention provides a new type of bio-rotary reactor disc and special-purpose Because of the method of manufacturing this kind of disk, this new type of biological turntable reactor disk has the characteristics of large specific surface area, hardness, light weight, no deformation, not easy to fall off and corrosion resistance, etc. After being applied to the biological turntable reactor, after Experiments have proved that it has the characteristics of high COD removal efficiency, strong resistance to organic load impact and good biosorption capacity.

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