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Recovery system for heavy metal in surface treatment wastewater

A surface treatment and recovery system technology, applied in water/sewage treatment, water/sewage multi-stage treatment, extracted water/sewage treatment, etc., can solve problems such as incomplete recovery of heavy metals, environmental pollution, waste of resources, etc., to improve work Efficiency and fluency, improving separation efficiency and avoiding radial runout

Inactive Publication Date: 2020-08-25
CHONGQING UNIV OF ARTS & SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the existing water heavy metal recovery methods and systems still have problems such as poor sewage treatment effect, incomplete recovery of heavy metals, resulting in extremely low recovery efficiency, which not only causes environmental pollution and waste of resources, but also greatly increases recovery costs and wastes A large amount of manpower and material resources cannot effectively and efficiently treat heavy metals in wastewater; it is far from being able to recover and treat sewage and heavy metals in industrial production, thus reducing the practicability of the device

Method used

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  • Recovery system for heavy metal in surface treatment wastewater
  • Recovery system for heavy metal in surface treatment wastewater
  • Recovery system for heavy metal in surface treatment wastewater

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Embodiment

[0035] Such as Figure 1~6 As shown, a heavy metal recovery system for surface treatment wastewater is characterized in that it includes an extraction system 1, a stripping system 2, a membrane separation device 3, an electrodialyzer 4, and an electrolytic recovery device 5;

[0036] Both the extraction system 1 and the stripping system 2 include a motor 11, a three-way mixer 12 and a connected oil-water separator 13; the three-way mixer 12 is a "T"-shaped tube, and the two ends of the "T"-shaped horizontal line tube are respectively There is a feed inlet, and a flow port 125 at the end of the "T"-shaped vertical pipe; the output end of the motor 11 is connected to an output shaft 112, and the output shaft 112 passes through the three-way mixer 12 and is located at the "T" of the three-way mixer 12. In the "shaped vertical pipe, the output shaft 112 is parallel to the "T" shaped vertical pipe of the three-way mixer 12, and a sealing rubber pad 111 is set at the connection betw...

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Abstract

The invention provides a recovery system for heavy metal in surface treatment wastewater. The recovery system comprises an extraction system (1), a back extraction system (2), membrane separation equipment (3), an electrodialyzer (4) and an electrolysis recovery device (5), wherein each of the extraction system (1) and the back extraction system (2) comprises a motor (11), a three-way mixer (12) and a communicated oil-water separator (13); and the electrolysis recovery device (5) comprises a bottom plate (51), an anode plate (521), a permeable membrane assembly (522), a cathode plate (523) anda recovery device shell (524). According to the recovery system, high-concentration heavy metal can be repeatedly recycled, so the heavy metal can be completely recycled, and recycling efficiency ishigh; meanwhile, the system can recycle an extraction agent, does not cause resource waste, effectively solves the problem of environmental pollution caused by too high heavy metal content in industrial wastewater, is simple and convenient to operate and wide in application range, and can be used for treating most industrial wastewater.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a heavy metal recovery system for surface treatment wastewater. Background technique [0002] With the rapid development of modern industry, the problem of environmental pollution is becoming more and more serious, among which heavy metal pollution has become the focus of attention. Heavy metal wastewater is discharged into the environment in large quantities, cannot be degraded naturally, can only undergo migration and transformation, and is enriched by the biological chain, eventually seriously threatening human health. [0003] Due to the different forms of heavy metal ions in water, the degree of pollution to water bodies is also different. According to the method of removing heavy metal ions, the treatment of heavy metal wastewater can be divided into physical removal and chemical removal; physical removal mainly includes membrane separation method, evaporation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/12C02F101/20
CPCC02F1/26C02F1/40C02F1/44C02F1/4693C02F9/00C02F2101/20
Inventor 关伟王书敏谢志刚
Owner CHONGQING UNIV OF ARTS & SCI
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