Electrochemical device for processing heavy metal wastewater

Abstract

The invention provides an electrochemical device for treating heavy metal wastewater, which comprises a box body, a power supply device and a polar plate mechanism arranged in the box body, wherein the polar plate mechanism comprises more than two conducting polar plates and non-conducting polar plates; one non-conducting polar plate is arranged between every two conducting polar plates; electrodes of two adjacent conducting polar plates are opposite; one end of each conducting polar plate is provided with a conducting pipe hole; a conducting copper pipe is threaded in the conducting pipe hole and is connected with the power supply device; the power supply device is a pulse power source; and the conducting polar plates and the non-conducting polar plates are all provided with hoisting holes. The electrochemical device for treating heavy metal wastewater has the advantages of simple compact structure, low cost, low energy consumption, convenient disassembly / assembly and maintenance andhigh treatment efficiency.

Description

Technical field [0001] The present invention mainly relates to the field of wastewater treatment equipment, and particularly refers to an electrochemical device for treating heavy metal wastewater. Background technique [0002] Scholars at home and abroad have done a lot of research on the treatment of heavy metal pollution. However, as the discharge standards become stricter, there are currently developed and applied methods for the treatment of heavy metal pollution wastewater, such as chemical precipitation, biological methods, and ion exchange. Certain limitations. The chemical precipitation method has the disadvantages of high operating cost, large area, unstable treatment effect, and difficult to meet the standard; biological method has disadvantages such as high requirements for water quality, low automation, and long project construction period. Physical methods such as ion exchange only It can treat a certain type and concentration of heavy metal ions. The electrochemi...

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Problems solved by technology

[0022] However, this type of electrochemical technology has not been widely used on a large scale at present. The main reason restricting its wide application is its high energy consumption. The soluble anode is easily polarized and passivated, which increases the power consumption of the treatment and reduces the treatment effect. , in practical applications, the plates need to be replaced regularly and frequently, and due to its structural design, it is troublesome to replace the plates, and the workload is heavy

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