Abstract
Lower consumption, higher efficiency, environmental protection, and reliability are the development trends for the treatment of antibiotic wastewater in future. To accomplish this, the electrochemical membrane reactor (ECMR) is developed by combining membrane filtration and electrochemical advanced oxidation technology. The device configuration and working mode of the electrochemical membrane reactor are introduced and compared. Besides, the principles of the removal of antibiotics by the reactor are explained with emphasis. Furthermore, the commonly used cathode and anode materials of the reactor in the current research are summarized, and the electrode materials are discussed. The effects of selection and modification on the elimination of antibiotics in the reactor and the impact are analysed. To address the limitations of electrochemical membrane reactors, this review proposes that more research should be done in the aspects of antibiotic degradation mechanism, reduction of membrane electrode R&D costs, and actual application of amplification devices.
Highlights
Over the past several years, antibiotics have been attracted multiplying attention as a new type of hazardous bioactive pollutants
Electrochemical membrane reactor is proposed via the combination of membrane filtration and the electrochemical advanced oxidation technology
This study focuses on the technique principles of antibiotic degradation in electrochemical membrane reactor (ECMR) and emphatically introduces the technology and factors, such as current density, initial concentration, electrode pore size, pH, residence time and electrolyte
Summary
Over the past several years, antibiotics have been attracted multiplying attention as a new type of hazardous bioactive pollutants. The antibiotic removal technologies can mainly be divided into biological method, adsorption, membrane filtration, advanced oxidation technology [24], and the coupling and combination of various technologies. Electrode production cost and energy consumption limit its potential for development [5]. With these backgrounds, electrochemical membrane reactor is proposed via the combination of membrane filtration and the electrochemical advanced oxidation technology. Electrochemical advanced oxidation process can reduce membrane fouling reversely. These characteristics reach the purpose of lower energy consumption and higher efficiency removal rate of contaminants [6]. Electrochemical membrane reactor configurations and conventional membrane electrode materials are summarized,
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