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Electroplating wastewater treatment equipment capable of recovering rare metals and operation method of electroplating wastewater treatment equipment

A rare metal, electroplating wastewater technology, applied in the electrolysis process, electrolysis components and other directions, can solve the problems of reduced electrolysis efficiency, single rare metal electrolysis, reduced wastewater treatment efficiency, etc., to facilitate electrolysis and precipitation of gold and various substances. Even and efficient effect

Active Publication Date: 2021-11-30
安徽省生态环境科学研究院
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the post-treatment of electroplating wastewater also uses electrolysis, which has the following two defects: 1. The electrolytic recovery of rare metals is not well realized. After a period of electrolysis, due to the change of the concentration around the electrode rod, the electrolysis efficiency will be reduced. 2. The electrolysis is relatively simple when recovering rare metals. During electrolysis, one type of metal is mainly recovered, and sewage often contains a variety of rare metals, so electrolysis is often carried out sequentially. However, the efficiency of wastewater treatment is reduced

Method used

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  • Electroplating wastewater treatment equipment capable of recovering rare metals and operation method of electroplating wastewater treatment equipment
  • Electroplating wastewater treatment equipment capable of recovering rare metals and operation method of electroplating wastewater treatment equipment
  • Electroplating wastewater treatment equipment capable of recovering rare metals and operation method of electroplating wastewater treatment equipment

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Embodiment 1

[0037] Embodiment 1: This embodiment provides electroplating wastewater treatment equipment that can recover rare metals, see Figure 1-7 Specifically, it includes a box body 1, a base 2 is fixedly installed on the lower side wall of the box body 1, a water inlet 11 is provided on the upper end side wall of the box body 1, and a water outlet is provided on the lower end side wall of the box body 1 5. A partition 6 is fixedly installed on the inner side wall of the box body 1, and a plurality of electrolytic boxes 3 are installed on the side wall of the box body 1, and the plurality of electrolytic boxes 3 are arranged symmetrically, and the partition plate 6 is arranged among the plurality of electrolytic boxes 3 Between, on the side wall of partition plate 6, water pipe 7 is installed, and solenoid valve 8 is fixedly installed on water pipe 7, and the recovery mechanism that is used to reclaim rare metal is all installed in a plurality of electrolytic tanks 3;

[0038] The re...

Embodiment 2

[0045] Embodiment two: in embodiment one, there is also the problem that electrolysis efficiency is reduced due to concentration changes around the electrode rod. Therefore, on the basis of embodiment one, this embodiment also includes:

[0046] In the present invention, a turntable 9 is fixedly installed on the side wall of the partition 6, and a rotating rod 13 is inserted in the rotating disc 9. A plurality of dials 10 are fixedly installed on the side wall of the rotating rod 13, and the side wall of the box body 1 A motor 12 is fixedly connected to the top, the output shaft of the motor 12 is installed at one end of the rotating rod 13, and the outer side of the motor 12 is provided with a protective shell 4. This structural design makes the concentration of various substances in the wastewater near the electrode rod 24 more uniform , to facilitate the electrolysis and metal precipitation work, improve the efficiency of electrolysis, increase the effect of metal precipitat...

Embodiment 3

[0048] Embodiment three: see Figure 7 , in this embodiment, the present invention also proposes the operation method of the electroplating wastewater treatment equipment that can recover rare metals, comprising the following steps:

[0049] Step 1, when performing recovery work, first insert the collection pipes 20 in the two opposite electrolytic tanks 3 into the solution phase tank 6 and seal them, then respectively insert the electrode rods 24 in the two electrolytic tanks 3 through the solution tank 16. The piston plate 17 and the connecting ring 22 are inserted into the collecting pipes 20 on both sides, and then the two electrode rods 24 are clamped by the elastic force of the tension spring 34 through the two conductive plates 25 in the corresponding clamping parts;

[0050] Step 2, then inject waste water into the tank 1 through the water inlet 11, the waste water will enter the solution tank 16 through the through hole 21, and then start the power supply in the elect...

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Abstract

The invention discloses electroplating wastewater treatment equipment capable of recovering rare metals. The equipment comprises a box body, a base is fixedly mounted on the lower side wall of the box body, a water inlet is formed in the side wall of the upper end of the box body, a water outlet is formed in the side wall of the lower end of the box body, partition plates are fixedly mounted on the inner side wall of the box body, a plurality of electrolysis boxes are mounted on the side wall of the box body, the multiple electrolysis boxes are symmetrically arranged, the partition plates are arranged among the multiple electrolysis boxes, water passing pipes are mounted on the side walls of the partition plates, electromagnetic valves are fixedly mounted on the water passing pipes, and recovering mechanisms used for recovering the rare metals are mounted in the multiple electrolysis boxes correspondingly. The invention further discloses an operation method of the electroplating wastewater treatment equipment capable of recovering the rare metals. The purpose of recovering the various rare metals can be achieved, multiple technological processes are not needed, and the working efficiency of electrolytic recovering is higher.

Description

technical field [0001] The invention relates to the field of sewage electrolysis equipment, in particular to electroplating wastewater treatment equipment capable of recovering rare metals and an operation method thereof. Background technique [0002] Electroplating wastewater is mainly discharged from the electroplating factory. The electroplating wastewater mainly contains heavy metal ions such as phosphorus, nickel, and copper. These electroplating wastewater are carcinogenic and highly toxic substances, and direct discharge will cause great harm to the environment. Nowadays, electrolytic treatment of wastewater is mostly used In the method, under the action of an external electric field, the wastewater flows through the electrolytic cell, oxidation and reduction reactions occur at the anode and cathode respectively, and harmful substances are removed. [0003] In the prior art, the post-treatment of electroplating wastewater also uses electrolysis, which has the followin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C7/00C25C7/06
CPCC25C7/00C25C7/06Y02P10/20
Inventor 匡武王翔宇郑西强
Owner 安徽省生态环境科学研究院
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