Electrochemical treatment device for sewage and wastewater treatment

Abstract

The invention relates to an electrochemical treatment device for sewage and wastewater treatment, which comprises a reaction tank and an electrochemical reaction module, wherein the electrochemical reaction module and the reaction tank are separate; the electrochemical reaction module comprises a support structure and pole plates arranged in the support structure; the pole plates are composed of an inert pole plate and a soluble pole plate; and the inert pole plate is connected with a power source. The electrochemical treatment device in such a structure can shorten the pole plate changing time of support devices, postpone the loss of the pole plates, enhance the treatment efficiency of the device, improve the stability of the device and lower the operating cost of the device.

Description

technical field [0001] The invention belongs to the technical field of resources and environment, and in particular relates to an electrochemical treatment device for sewage and wastewater treatment. Background technique [0002] At present, electrochemical treatment equipment generally completes the electrochemical treatment process by directly installing electrode plates in the reaction tank, installing a water distribution system and a water outlet system in the reaction tank to control the flow of wastewater through the gap between the plates. The currently used polar plate materials are generally unitary, and slots are directly arranged in the reaction tank for the installation of the polar plate. [0003] However, there are a series of problems in engineering application of this kind of electrochemical treatment equipment, which limits its engineering application. The main manifestations are: [0004] First of all, the installation, replacement and maintenance proces...

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Problems solved by technology

[0004] First of all, the installation, replacement and maintenance process of the electrode plates of the current electrochemical treatment equipment is cumbersome; since the electrode plates are directly installed in the reaction tank, each electrode plate needs to be reinstalled, and it takes a long time to replace the electrode plates once (generally, it takes about Half a day), high labor intensity; the replacement of the plate needs to be operated directly in the reaction tank, the replacement process will damage the reaction tank, easily cause equipment failure, and reduce system reliability

At present, due to the limitation of the installation method of the pole plate, the structure of the equipment with good hydraulic conditions is more complex, while the equipment with simple structure has poor hydraulic conditions

[0005] Secondly, the plate material of the equipment adopts a single plate material, and the plate consumption is large, especially when dealing with industrial wastewater with complex water quality, in order to ensure the treatment effect, it can only be at the expense of greater plate consumption and energy consumption. It greatly increases the operating cost, and at the same time reduces the service life of the plate (the data shows that the plate can be used for only 7 days at the shortest time, and the plate can be used for 15 days under normal circumstances), which limits the electrochemical process to a certain extent. device application

Moreover, the existing electrochemical treatment equipment generally uses copper plates to connect the soluble plates to the power supply. Oxide is easily generated at the joints between the copper plates and the soluble plates when the power is applied, resulting in increased resistance at the joints, resulting in greater inefficiency. Power loss; in addition, it is difficult to ensure uniform consumption of the plates by using this plate connection method, resulting in waste of plates

[0006] To sum up, the current electrochemical equipment has long downtime, high operating cost, low effective utilization rate and stable The performance gradually decreases with the prolongation of the running time, and at the same time, the loss of invalid electric energy is large

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