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An electrochemical plate for treating electroplating wastewater

An electroplating wastewater and electrochemical technology, which is applied in the direction of electrochemical water/sewage treatment, water/sewage treatment, chemical instruments and methods, etc., can solve the problem of affecting the efficiency of electrochemical equipment to treat wastewater, affecting the effect of electrochemical treatment, and not being able to obtain effective Utilize and other problems to achieve the effect of increasing the wastewater treatment capacity, shortening the residence time, and enhancing the turbulent state of the water body

Active Publication Date: 2016-02-17
POWERCHINA ZHONGNAN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The surface of flat plate ordinary carbon steel plate is smooth, and the surface generally has a protective layer. In the case of electrified operation, because electrons need to overcome a large resistance during the transfer process, and this transfer is unevenly distributed due to the influence of the protective layer, in order to achieve For certain effluent water quality, the corresponding voltage and current must be increased, which will increase the loss of ineffective electrical energy and affect the electrochemical treatment effect
The surface treatment water of the plate plate is mainly laminar flow, the water flow direction is parallel to the plate flow direction, the mass transfer efficiency in the water body is low, and the micro flocs dissolved from the plate and water pollutants cannot be quickly mixed, which will affect the electrochemical equipment treatment Wastewater Efficiency
In addition, the existing plate is directly connected to the copper plate, and as the reaction time increases, there will be uneven dissolution of the plate, resulting in uneven consumption of the plate, unstable effect, and the plate needs to be replaced, so that the plate is wasted and cannot be used. be used effectively

Method used

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  • An electrochemical plate for treating electroplating wastewater
  • An electrochemical plate for treating electroplating wastewater
  • An electrochemical plate for treating electroplating wastewater

Examples

Experimental program
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Effect test

Embodiment 1

[0026] see figure 1 , 2 And 3, the electrochemical pole plate used to treat electroplating wastewater includes a pole plate body 1; several rows of pits 2 are arranged on the surface of the pole plate body 1; the diameter of the pits 2 is 5mm, and the depth is 2mm The distance between the center points of two adjacent pits 2 is 20 mm; the distance between the pits 2 on both sides of the plate body 1 and the side of the plate body 1 is 45-55 mm; The density on 1 is 0.1—0.17 pieces / cm 2 . One end of the pole plate body 1 is provided with a conductive rod 3 .

Embodiment 2

[0028] With the electrochemical pole plate described in Example 1, the electrochemical treatment equipment of copper-containing industrial wastewater in an electroplating enterprise is transformed, and the design treatment capacity of this wastewater treatment equipment is 50m 3 / h, the main pollutants to be treated are copper, lead, chromium and zinc. The original treatment equipment uses flat flat ordinary carbon steel plates as soluble plates. The surface of the plates is not treated, and the plates are directly connected to the power supply with copper plates. During the operation of the original equipment: the energy consumption per ton of water is high, the effective utilization rate of the plates is not high, the replacement cycle of the plates is short, and the weight of the scrapped plates is large. After the transformation of the present invention, the wastewater treatment equipment has been significantly improved. After one year of operation, the system has a stable ...

Embodiment 3

[0032] see Figure 4 with 5 , the electrochemical plate used to treat electroplating wastewater includes a plate body 1; the surface of the plate body 1 is provided with some rows of pits 2 and some rows of holes 4, and the ratio of the number of pits 2 to holes 4 is 3—5:1; the diameter of the pit 2 is 5mm, and the depth is 2mm; the distance between the center points of two adjacent pits 2 is 20mm; the diameter of the hole 4 is 4—8mm; two adjacent holes 4 The distance between the center points is 60mm; the distance between the pits 2 on both sides of the plate body 1 and the side of the plate body 1 is 45-55mm; the holes 4 on both sides of the plate body 1 and the side of the plate body 1 The distance is 45-55mm; the density of the pits 2 on the plate body 1 is 0.1-0.17 / cm 2 ; The density of the holes 4 on the plate body 1 is 0.03-0.05 / cm 2 . One end of the pole plate body 1 is provided with a conductive rod 3 .

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Abstract

The invention discloses an electrochemistry pole plate for processing electroplating wastewater. The electrochemistry pole plate comprises a pole plate body. The surface of the pole plate body is provided with a plurality of rows of pits, the diameter of the pits is 3-6 mm, and the depth of the pits is 2-6 mm. The distance between the center points of every two adjacent pits is 15-25 mm. According to the electrochemistry pole plate for processing the electroplating wastewater, the advantages of the pits and holes are combined, effective contact, fluid states, reaction environments and the like of the pole plate and an reaction water body are improved, the ton water energy consumption of electrochemistry equipment is reduced, the replacing cycle of the pole plate is prolonged, and the effluent quality is stabilized.

Description

technical field [0001] The invention belongs to the technical field of electrochemical equipment, and in particular relates to an electrochemical pole plate used for treating electroplating wastewater. Background technique [0002] Electroplating refers to the process of depositing metal on the surface of a conductor (such as metal) or a non-conductor (such as plastic, wood, leather) by using an electric current to form a metal coating. Electroplating can change the surface characteristics of metals, enhance the corrosion resistance of metals that are prone to rust, and save metal materials. It plays a very important role in the production of machinery manufacturing, electronics, petrochemicals, automobiles, weapons, aerospace systems and other industries. An indispensable link in the industrial chain. However, the wastewater produced by the electroplating industry contains a large amount of heavy metal ions. These heavy metal ions have high stability in the environment, ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/46C02F1/62
Inventor 李勇陈湘斌王合德左莉娜黎慧娟唐传祥熊道文刘德华熊珊
Owner POWERCHINA ZHONGNAN ENG
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