Non-diaphragm electrochemical waste water treatment device

Abstract

The invention relates to a non-diaphragm electrochemical waste water treatment device which comprises an electrode reactor, wherein a waste water guide pipe, an anode, a feed cathode and a large metalparticle collecting device are arranged in the electrode reactor; a waste water inlet is arranged at the bottom of the electrode reactor, the upper side of the waste water inlet is longitudinally provided with the waste water guide pipe, and a space is reserved between the lower end of the waste water guide pipe and the waste water inlet; in addition, the upper end of the waste water guide pipe is provided with an anode protective baffle; the anode is arranged on the outer wall of the waste water guide pipe, and the feed cathode is arranged at the bottom of the electrode reactor; moreover, afeeding device is arranged on the electrode reactor; and the large metal particle collecting device is arranged below the anode protective baffle. Therefore, the non-diaphragm electrochemical waste water treatment device can effectively maintain particles in the electrode reactor to be fluidized and also prevent the metal particles from entering an anode reaction area. Under the condition of no need of a diaphragm, a cathode reaction area and an anode reaction rear are separated, thereby thoroughly solving various problems brought by using the diaphragm.

Description

technical field [0001] The invention relates to a wastewater treatment device, in particular to a membrane-free electrochemical wastewater treatment device capable of efficiently recovering metals in industrial wastewater. Background technique [0002] my country's manufacturing industry is developed, and the discharge of industrial wastewater ranks first in the world. Industrial wastewater (such as electroplating, printing and dyeing, tanning and other industrial wastewater) usually contains a large amount of metal ions, such as copper, zinc, chromium, cadmium, lead, etc. These metal ions are extremely harmful to the environment and human beings, and must be strictly purified before being discharged or reused. At the same time, the recovery value of these metal ions is generally high, so it is very necessary to develop new and efficient resource recovery devices and methods. [0003] At present, industrial wastewater treatment methods can be mainly divided into four categ...

AI Technical Summary

Problems solved by technology

However, ideal diaphragm materials (such as precious metal-based permeable membranes) are too expensive to be popularized and applied.

The commonly used diaphragm materials (such as glass fiber, plastic, etc.) often affect the safe, continuous and stable operation of the device due to wear and tear.

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