Device and method for treating heavy metal ions in wastewater

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

Active Publication Date: 2019-03-22
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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  • Device and method for treating heavy metal ions in wastewater

Examples

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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 for solving the problems of heavy metal ion containing wastewater treatment in the prior art. The device for treating the heavy metal ions in the wastewater is connected with a water pump at a water outlet of a water tank, and is sequentially providedwith a water bath heating device, a horizontal and vertical orientation permanent magnet, a valve and a flow meter along the wastewater flowing direction; a closed-loop cycle is formed; the conditionsare prepared for magnetization and adsorption; the structure is simple; the operation is convenient. A filter is arranged on a filtering outlet formed in the bottom of the water tank; a filtering valve is arranged on a water outlet pipeline; after the adsorption is completed, ion filtering and resin exchange are performed. By the method, a magnetization means is firstly used for magnetizing the wastewater containing the heavy metal ions; the magnetized wastewater is circulated at a low flow speed; the number of hydrogen bonds in the system is improved; the promotion of the adsorption efficiency and the adsorption rate during the resin single dynamic adsorption at low temperature can be realized.

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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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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