Sewage purification reactor, sewage treatment system and sewage purification method

Abstract

The invention discloses a sewage purification reactor. The sewage purification reactor comprises a shell, a photocatalytic advanced oxidation filtration module and an aerating device, wherein the shell comprises a shell body, a bottom shell body arranged at the bottom of the shell body and an upper cover arranged at the top of the shell body, a sewage treatment reaction cavity is defined by the shell body, the bottom shell body and the upper cover, a water inlet close to the bottom shell body and a water outlet close to the upper cover are formed in the outside of the shell body, and the water inlet and the water outlet are communicated with the sewage treatment reaction cavity respectively; the photocatalytic advanced oxidation filtration module is arranged in the sewage treatment reaction cavity, and comprises a ceramic membrane assembly, a photocatalytic assembly and a switch-valve control assembly, the ceramic membrane assembly is connected with the switch-valve assembly, and the photocatalytic assembly is borne through the ceramic membrane assembly; the aerating device is arranged outside the shell and connected with the switch-valve assembly through a joint assembly arranged on the bottom shell body. The invention further discloses a sewage treatment system and a sewage purification method. By means of the sewage purification reactor, the sewage treatment system and the sewage purification method, the filtering rate of pollutant can be effectively increased.

Description

technical field [0001] The invention relates to the field of sewage treatment devices, in particular to a sewage purification reactor, a sewage treatment system and a sewage purification method, in particular to a sewage purification reactor based on advanced oxidation photocatalysis. Background technique [0002] In recent years, people have paid more and more attention to fresh water pollution. Due to the direct pollution of drinkable fresh water by the development of industry, the storage of fresh water resources has become less and less, and various pollutants have been stranded in the main river for a long time. Related diseases are on the rise. Therefore, in order to improve the environment of the main river, the use of sewage purification reactors has become the choice of more people in view of the characteristics of persistent and uncertain release of freshwater pollutants. [0003] Titanium dioxide materials can undergo photocatalytic advanced oxidation reactions u...

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Problems solved by technology

[0005] In the prior art, the flow of sewage in the reaction chamber is very uneven so that TiO 2 The photocatalytic advanced oxidation reaction on the wall surface of the catalytic membrane is not stable enough, which makes the sewage treatment efficiency in the reaction chamber low, especially the lack of effective degradation of macromolecular and complex organic pollutants, resulting in poor sewage purification effect in the reaction chamber; at the same time, the existing Using photocatalytic advanced oxidation sewage treatment equipment, the lamp film device and aeration device are arranged in the reaction chamber with a large space occupation rate, so that the effective sewage treatment capacity is relatively low

[0006] In order to improve the efficiency of sewage treatment, the patent document with application number 201410693648.1 discloses an ultrafiltration biofilm sewage treatment device, which has the following defects. The biological treatment method requires a large reactor volume; the biological treatment method requires high external conditions, such as temperature , PH, etc.; a separate aeration plate is required, which takes up effective processing space and costs more

In addition, the patent document with the application number of 201120144726.4 discloses a photocatalytic sewage treatment equipment, which adopts a cylindrical sewage treatment reaction chamber, and attaches titanium dioxide photocatalytic advanced oxidant to the carrier, which has the following defects. The flow of sewage in the reaction chamber cannot be controlled , so that the contact between the sewage and the catalyst is uneven; there is no aeration device, the sewage is mixed unevenly, and the catalytic efficiency is low; the separation of purified water after treatment cannot be achieved

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