3D electrode reactor and application to non-degradable organic wastewater treatment

Abstract

The invention relates to a wastewater treatment device, in particular to a 3D electrode reactor applicable to non-degradable organic wastewater treatment. The reactor consists of a tank, an electrode cathode, an electrode anode, a particle electrode, a diaphragm plate and a DC power supply; the 3D electrode reactor takes electric energy as excitation energy, and takes the particle electrode with catalytic activity as a work electrode. The reactor can be used for ordinary organic wastewater treatment and the non-degradable organic wastewater treatment to reach standard stably; the reactor can be used for pretreatment of non-biodegradable organic wastewater with high concentration to decompose the wastewater into easily biodegradable organic matters with smaller molecular weight to greatly enhance biodegradability of the wastewater; and the reactor can also be used for post-treatment of wastewater biochemical process to ensure that wastewater discharge reaches the standard.

Description

technical field [0001] The invention relates to a wastewater treatment device and its application in the treatment of refractory organic wastewater, in particular to a three-dimensional electrode reactor for removing organic substances in organic wastewater by electrolytic oxidation, which is suitable for the treatment of various refractory organic wastewater . Background technique [0002] The treatment of organic pollutants, especially biodegradable organic pollutants, is a hot and difficult point in the treatment of industrial wastewater in the world. Researchers have also proposed some treatment methods for refractory organic wastewater. Among them, electrochemical treatment of wastewater has the characteristics of advanced technical and economic indicators, non-toxic, and clean, and has attracted more and more attention. However, the relevant researches are mostly limited to two-dimensional flat electrodes. Due to the small surface-to-body ratio of the electrode, the m...

AI Technical Summary

Problems solved by technology

The three-dimensional electrode reactor has a large face-to-face ratio, a good mass transfer effect and a high current efficiency. It is an electrochemical reactor with high practical and theoretical value. It has been used in many applications in wastewater treatment, but At present, most of them are concentrated on the treatment of wastewater containing heavy metal ions, but the research in the field of organic wastewater is rare (Simonsson, D.Chem.Socv.Rev.1997, 26 (3), 181-189)

"A three-dimensional electrode reactor for treating refractory organic wastewater (CN1850644A)" developed by Beijing University of Chemical Technology requires aeration and oxygenation, and the service life of activated carbon and its activation are not mentioned; "Three-dimensional electrode reactor (CN2564547Y) developed by Sun Yat-sen University )” requires aeration and oxygenation, and the production process of the particle electrode is complicated

Images