An anaerobic conductive ceramic membrane bioreactor device and method for effectively controlling membrane fouling

Abstract

The invention relates to an anaerobic electrically-conductive ceramic membrane biological reacting device effectively controlling membrane pollution and a method. The device mainly comprises a reactor main body, an electrically-conductive ceramic membrane assembly, a low-voltage direct-current power supply, an electric wire, a suction pump, pressure sensors, a temperature controlling apparatus, a gas flowmeter, and the like. An anaerobic membrane bioreactor is an integrated immersed type anaerobic bioreactor, and adopts electrically-conductive ceramic as a membrane assembly material. The low-voltage direct-current power supply is disposed outside the reactor and is connected to electrically-conductive ceramic membranes through the electric wire. The electrically-conductive ceramic membranes are arranged as cathodes or anodes in order. The pressure sensors are used for measuring filtration pressures and backwashing pressures applied on the electrically-conductive ceramic membranes by the suction pump during working so as to control a cleaning manner and the cleaning frequency of the electrically-conductive ceramic membranes. The low-voltage direct-current power supply can control redox potentials of the electrically-conductive ceramic membrane cathodes and anodes, thus providing environments suitable for growing conditions of each microorganism and finally increasing the anaerobic digestion efficiency.

Description

technical field

[0001] The invention belongs to the field of sewage treatment and water resource reuse, and is suitable for energy recovery and pollution removal of high-organic sewage (such as thermal hydrolysis supernatant, etc.), in particular to an anaerobic conductive ceramic membrane bioreactor for effectively controlling membrane pollution and The method can improve the anti-pollution ability of the membrane and at the same time utilize the conductivity of the conductive ceramic to control the oxidation-reduction potential, provide respective suitable growth environments for the microbial flora, and promote the performance of anaerobic digestion. At the same time, the present invention can quickly clean the membrane by reversely connecting the positive and negative poles of the power supply or changing the voltage of the cathode and anode, and cooperate with backwashing. Background technique

[0002] Membrane Bioreactor (MBR for short) is a new type of efficient sewag...

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