A device and method for treating heavy metal ions in wastewater

A technology for heavy metal ions and wastewater treatment, applied in filtration treatment, water/sewage treatment, chemical instruments and methods, etc., can solve problems such as metal loss, pollution of water and water resources, and threat to health, and achieves simple structure and convenient operation. Effect

Active Publication Date: 2021-11-16
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wastewater from non-ferrous metal smelters often contains a variety of metal ions and harmful substances at the same time, and the composition is relatively complex
Discharged into the environment, these pollutants can only change form or be transferred, diluted, and accumulated, but cannot be degraded. Therefore, it will not only cause the loss of a large amount of metals, but also seriously pollute water sources and resources, threatening human health.

Method used

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  • A device and method for treating heavy metal ions in wastewater

Examples

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Comparison scheme
Effect test

Embodiment 1

[0025] A method for treating heavy metal ions in waste water, comprising the steps of:

[0026] (1) Open the circulation valve 6, fill up the copper-containing waste water to the water tank 1, then turn on the water pump 2 and the water bath heating device 3, the temperature of the water bath heating device 3 is controlled at 25°C, and the magnetic field strength of the horizontally oriented permanent magnet 4 is 3T , the magnetic field strength of the second permanent magnet 5 is 0.5T, and both the first permanent magnet 4 and the second permanent magnet 5 are arranged horizontally and directly clamped on the pipe wall of the circulation pipeline. The direction of the magnetic field lines of the first permanent magnet 4 is parallel to and identical to the liquid flow direction, and the magnetic field line direction of the second permanent magnet 5 is perpendicular to the liquid flow direction. The pH of the wastewater is 5, and then the water velocity in the pipeline is adjus...

Embodiment 2

[0033] A method for treating heavy metal ions in waste water, comprising the steps of:

[0034](1) Open the circulation valve 6, fill the water tank 1 with copper-containing wastewater, and then turn on the water pump 2 and the water bath heating device 3. The temperature of the water bath heating device 3 is controlled at 30°C, and the magnetic field strength of the horizontally oriented permanent magnet 4 is 3.2T , the magnetic field strength of the second permanent magnet 5 is 1T, and the first permanent magnet 4 and the second permanent magnet 5 are both horizontally distributed and directly clamped on the pipe wall of the circulation pipeline. The direction of the magnetic field lines of the first permanent magnet 4 is parallel to and identical to the liquid flow direction, and the magnetic field line direction of the second permanent magnet 5 is perpendicular to the liquid flow direction. The pH value of the wastewater is 6, and then the water velocity in the pipeline is...

Embodiment 3

[0041] A method for treating heavy metal ions in waste water, comprising the steps of:

[0042] (1) Open the circulation valve 6, pour the wastewater containing copper smelting into the water tank 1 and fill up the water tank 1, then turn on the water pump 2 and the water bath heating device 3, the temperature of the water bath heating device 3 is controlled at 35°C, and the first horizontal orientation The magnetic field strength of the permanent magnet 4 is 3.5T, and the magnetic field strength of the second permanent magnet 5 is 1.5T. Both the first permanent magnet 4 and the second permanent magnet 5 are mounted horizontally on the pipe wall of the circulation pipeline. The direction of the magnetic field lines of the first permanent magnet 4 is parallel to and identical to the liquid flow direction, and the magnetic field line direction of the second permanent magnet 5 is perpendicular to the liquid flow direction. The pH value of the wastewater is 7, and then the water v...

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Abstract

The invention belongs to the technical field of wastewater treatment and discloses a device and method for treating heavy metal ions in wastewater. To solve the problems existing in the treatment of wastewater containing heavy metal ions in the prior art, the device for treating heavy metal ions in wastewater of the present invention is connected with a water pump at the water outlet of the water tank and is equipped with water bath heating devices, horizontal and vertical Oriented permanent magnets, valves and flowmeters form a closed loop, which prepares conditions for magnetization and adsorption. The structure is simple and the operation is convenient. Install a filter on the filter outlet at the bottom of the water tank and install a filter valve on the outlet pipeline to filter the ion exchange resin after the adsorption is completed. In the method, the wastewater containing heavy metal ions is magnetized by means of magnetization, and the number of hydrogen bonds in the system can be increased by using the magnetized wastewater circulated at a lower flow rate, which can realize the adsorption efficiency and adsorption rate when the dynamic adsorption of the resin alone is promoted at a lower temperature.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a device and method for treating heavy metal ions in wastewater. Background technique [0002] Non-ferrous metal smelting consumes a lot of water, and subsequently produces a lot of smelting sewage. Wastewater from non-ferrous metal smelters often contains a variety of metal ions and harmful substances at the same time, and the composition is relatively complex. Discharged into the environment, these pollutants can only change form or be transferred, diluted, and accumulated, but cannot be degraded. Therefore, it will not only cause a large amount of metal loss, but also seriously pollute water sources and resources, threatening human health. Wastewater containing heavy metal ions is produced in a series of industries that process and utilize non-ferrous metals, such as mining, smelting, and processing and electroplating. The treatment methods of wastewater contain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/12
CPCC02F1/001C02F1/42C02F1/48C02F9/00C02F2001/422C02F2101/20
Inventor 姚夏妍余江鸿鲁兴武李彦龙程亮李俞良李守荣张恩玉李玉
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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