A continuous wastewater treatment device using membrane capacitance deionization

Abstract

The invention relates to a continuous wastewater treatment device utilizing membrane capacitive deionization. An upper cover plate and a lower cover plate are coaxially installed at the upper end and the lower end of a cylindrical shell, a water inlet nozzle and a water outlet nozzle which are communicated with the interior of the shell are respectively formed in the axis part of the upper cover plate and the axis part of the lower cover plate, a water collecting plate is coaxially installed on the upper cover plate in the shell, conducting rods are uniformly and axially distributed on the periphery of the shell at intervals, a lower distribution board and an upper distribution board are coaxially installed in the shell between the water collecting plate and a water distributing plate and are of a pair of metal boards, and a plurality of groups of processing module components are coaxially installed between the two distribution boards, wherein each group of processing module component comprises an upper current collecting plate, a membrane carbon positive electrode, a diaphragm, a membrane carbon negative electrode and a lower current collecting plate. According to the continuous wastewater treatment device, the membrane electrode is integral and is prepared by a carbon electrode and an ion membrane through spraying a cation exchange coating on a cathode and spraying an anion exchange coating on an anode, the thickness of the ion exchange layer is less than 10mu, and the membrane electrode has small resistance and large capacitance compared with those of a membrane electrode on which an ion membrane is directly added.

Description

technical field [0001] The invention belongs to the technical field of environmental protection equipment, and relates to the removal of ions in waste water and the reuse of boiler water, in particular to a continuous waste water treatment device using membrane capacitor deionization. Background technique [0002] With the rapid development of social economy and the rapid increase of population, the shortage of water resources (industrial and domestic water shortage) is a long-term and trending problem facing the world, and it has become a major bottleneck restricting economic development. Considering the preciousness of water resources, the reuse of sewage, seawater and brackish water desalination are effective ways to solve the shortage of water resources. [0003] Among the currently disclosed deionization technologies, the common desalination methods include ion exchange, electrodialysis, and reverse osmosis. These methods all have many limitations. For example, if the r...

AI Technical Summary

Problems solved by technology

[0015] The present invention overcomes the deficiencies of the prior art and provides a continuous wastewater treatment device using membrane capacitor deionization, which can effectively solve the problems of low desalination efficiency, easy scaling and meeting water discharge requirements in the industrialization process of old capacitor deionization devices Problems such as many electro-adsorption modules, large investment, and large floor area

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