Nano photoelectric catalysis coupled microbial membrane electrode sleeve reactor and its application

Abstract

The invention discloses a nanometer photoelectrocatalysis coupling microorganism membrane electrode telescopic reactor and application. The reactor comprises: a reaction chamber provided with a water outlet, a positive electrode module, a negative electrode module, a power supply module and a peristaltic pump. The negative electrode module comprises: a conductive inner cylinder arranged in the reaction chamber and having an inner wall with photoelectrocatalytic active carbon fibers attached, a graphite rod and a light source disposed in the conductive inner cylinder, wherein the graphite rod is in electrical connection to the negative electrode of the power supply module which is powered up by the light source. The positive electrode module includes a conductive outer cylinder arranged in the reaction chamber and sleeving the conductive inner cylinder and connected to the positive electrode of the power supply module, active carbon fibers arranged between the conductive inner and other cylinders. The peristaltic pump is connected to a water inlet pipe, a water discharge end of which extends into the conductive inner cylinder. The invention further discloses an application of the reactor to treat PPCPs-containing sewage. The reactor couples photoelectrocatalysis and microcurrent-enhanced microorganism biodegradation into one body, and is low in energy consumption and good in PPCPs processing effect.

Description

technical field [0001] The invention relates to the technical field of microbial photoelectrochemistry, new materials, medicines and personal care products sewage treatment, in particular to a nano-photoelectric catalysis coupled microbial membrane electrode sleeve reactor and its application in the removal of medicines and personal care products. Background technique [0002] Pharmaceuticals and personal care products (PPCPs), as emerging environmental pollutants, have been detected in environmental media such as sewage, surface water, groundwater, and soil, and have been proven to have certain effects on the ecological environment and human health. Risks have aroused widespread concern from academia and the public. PPCPs mainly include estrogens, antibiotics, tranquilizers, contrast agents, antiepileptic drugs, blood lipid-regulating drugs, antipyretic, analgesic and anti-inflammatory drugs, and spices commonly used in cosmetics. Although the half-life of PPCPs is relativ...

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Problems solved by technology

[0004] Purpose of the invention: Aiming at the existing problems in the biofilm electrochemical system such as the small specific surface area of ​​the microbial film, low power utilization efficiency, complex composition and content of PPCPs, high removal cost, and difficulty in effective degradation, one of the purposes of the present invention It is to provide a sleeve-type reactor with nano-photoelectric catalysis coupled with microbial membrane electrodes, which integrates photoelectric catalysis technology and micro-current enhanced microbial biodegradation process, which has low energy consumption and good PPCPs treatment effect

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