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System for treating cadmium-containing waste water

A technology for waste water and waste water pools, applied in filtration treatment, multi-stage water treatment, water/sewage treatment and other directions, can solve problems such as heavy metal pollution and affect normal life, and achieve the effect of good effect, simple structure and low cost

Inactive Publication Date: 2015-05-27
TIANJIN FANKAI TECH & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] A large amount of wastewater containing heavy metal ions, such as cadmium ions, is discharged in industrial production; a large amount of cadmium ions in water will cause heavy metal pollution and affect people's normal life. Therefore, we need a wastewater treatment system containing cadmium to treat industrial wastewater containing cadmium

Method used

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  • System for treating cadmium-containing waste water

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Embodiment Construction

[0010] Such as figure 1 As shown, the waste water tank is connected to the industrial drainage pipeline, and the waste water flows into the waste water tank. When the water volume is constant, it enters the sedimentation tank. Oxygen ions react to produce sediment and sink to the bottom of the sedimentation tank. In order to prevent the sediment from flowing into the water purification tank, the outlet end of the sedimentation tank and the water inlet end of the water purification tank are connected by a filter element, and the pH adjustment tank can maintain the pH value in the sedimentation tank , so that the chemical reaction in the chemical sedimentation tank has the best effect. A heating device can be installed in the sedimentation tank to make the sedimentation effect better. There is a valve in the pipeline between the sedimentation tank and the sedimentation drying chamber, which can be opened when there is too much sedimentation, so that the sediment flows into the ...

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Abstract

The invention provides a system for treating cadmium-containing waste water. The system comprises a waste water tank, a sedimentation basin, a deposition drying chamber, a PH adjustment tank, a filtering core and a clean water tank. The waste water tank, the PH adjustment tank and the deposition drying chamber are respectively connected to the chemical sedimentation basin by pipes, the pipe between the deposition drying chamber and the sedimentation basin is provided with a valve, one end of the filtering core is connected to the chemical sedimentation basin and the other end of the filtering core is connected to the clean water tank. In an alkaline environment, cadmium ions can produce water-insoluble hydroxide precipitates, and the precipitates in water are separated so that cadmium ions in industrial waste water are removed. The system has a simple structure, a low cost and good cadmium ion removal effects.

Description

technical field [0001] The invention relates to a system for treating cadmium-containing wastewater. Background technique [0002] A large amount of wastewater containing heavy metal ions, such as cadmium ions, is discharged in industrial production; a large amount of cadmium ions in water will cause heavy metal pollution and affect people's normal life. Therefore, we need a wastewater treatment system containing cadmium to treat industrial wastewater containing cadmium . Contents of the invention [0003] The purpose of the invention is to provide an environment-friendly, energy-saving and simple process system for treating waste water containing cadmium. [0004] In order to solve the above-mentioned technical problems, the technical scheme adopted by the present invention is: a system for treating cadmium-containing wastewater, including a wastewater tank, a chemical sedimentation tank, a sedimentation drying room, a pH adjustment tank, a filter element, and a water pu...

Claims

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Application Information

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IPC IPC(8): C02F9/10
CPCC02F9/00C02F1/001C02F1/02C02F1/5245C02F1/66C02F2101/20C02F2301/08
Inventor 彭志刚
Owner TIANJIN FANKAI TECH & TRADE