Real-time control sequencing batch membrane bioreactor

Abstract

The invention discloses a real-time control sequencing batch membrane bioreactor. The real-time control sequencing batch membrane bioreactor comprises a reaction bin, wherein the reaction bin comprises an inner bin and an outer bin; a microfiltration membrane module is arranged on the side wall of the inner side of the inner bin; a mesoporous aeration pipe is embedded into the lower part of the microfiltration membrane module; a water outlet I in the reaction bin is connected with the microfiltration membrane module by a connecting pipe; a stirrer is arranged in the inner bin; an aeration sand table is arranged below the stirrer and is connected with a gas flowmeter II; a gas flowmeter I is connected with the mesoporous aeration pipe; an air compressor is connected with the gas flowmeter I and the gas flowmeter II; the end where an ORP (Oxidation-Reduction Potential) electrode is located, the end where a DO (Dissolved Oxygen) electrode is located and the end where a pH electrode is located are all immersed into the inner bin. The real-time control sequencing batch membrane bioreactor disclosed by the invention can circularly operate and detect the changes of ORP, DO and pH along with time in the process of treating wastewater by the device; certain reaction stage at which a reaction device is located is judged according to the change; in addition, aerobic-anoxic condition transformation can be realized by adjusting the aeration rate of the reaction device.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to a real-time control sequencing batch membrane bioreactor. Background technique [0002] With the continuous shortage of water resources and the continuous strengthening of environmental pollution control, people have begun to pay attention to the treatment of small-flow domestic sewage in urban communities, tourist scenic spots, stations, toll stations, temporary construction sites, etc. where drainage pipe networks are not popularized. The characteristics of such sewage are that the water volume is small and scattered, and there is no collection pipe network, so it is difficult to build a conventional sewage treatment plant for unified treatment and management. Existing technologies for domestic sewage treatment in the society, such as A / O, A2 / O, SBR, oxidation ditch, biological contact oxidation, biological filter method, etc., have difficulties in sewage collection, high invest...

AI Technical Summary

Problems solved by technology

[0004] Existing membrane bioreactors cannot well detect the changes of ORP, DO, and pH over time in the process of wastewater treatment by the device, which makes it impossible to conveniently and accurately judge which reaction stage the reaction device is in, and it is difficult to realize the balance between aerobic and anoxic. conditional transformation

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