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Zero emission online circulation treatment system for electroplated nickel containing waste water

A recycling treatment and zero discharge technology, which is applied in the fields of energy wastewater treatment, metallurgical wastewater treatment, heating water/sewage treatment, etc., can solve the problems of inability to realize the online recycling of nickel-containing wastewater and increase the chemical composition of wastewater, so as to improve the service life , high degree of automation, and the effect of improving the quality of recycling

Active Publication Date: 2013-01-16
NANJING JIHONG ENVIRONMENTAL PROTECTION TECH
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  • Abstract
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  • Application Information

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Problems solved by technology

Although this method can realize the extraction and concentration of nickel, this method cannot realize the online recycling of nickel-containing wastewater, and the addition of each catalyst also increases the chemical composition of the wastewater, which is not worth the candle.

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  • Zero emission online circulation treatment system for electroplated nickel containing waste water

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Embodiment Construction

[0024] Below in conjunction with accompanying drawing and specific embodiment, further illustrate the present invention, should be understood that these embodiments are only for illustrating the present invention and are not intended to limit the scope of the present invention, after having read the present invention, those skilled in the art will understand various aspects of the present invention Modifications in equivalent forms all fall within the scope defined by the appended claims of this application.

[0025] like figure 1 As shown, a zero-discharge online circulation treatment system for electroplating nickel-containing wastewater, which includes: a pre-treatment system, a filtration osmosis system and an evaporation concentration system;

[0026] The pretreatment system in the early stage includes a raw water pool (1), a booster pump (2), an MBR membrane treatment device (3), a bag filter (4), an oil removal filter (5), and a safety filter (6) , the raw water pool (...

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Abstract

The invention discloses a zero emission online circulation treatment system for electroplated nickel containing waste water. The system comprises an early-stage pretreatment system, a filter permeation system and an evaporation concentration system, the early-stage pretreatment system comprises a raw water pool(1), a boosting pump(2), a membrane bioreactor (MBR) membrane treatment device (3), a bag-type filter (4), an oil removing filter(5) and a cartridge filter (6), the filter permeation system comprises an ultrafiltration device (7), a first high pressure pump (8), a first-stage inverse permeation unit (9), a first-stage middle water tank (10), a second high pressure pump (11), a second-stage inverse permeation unit (12) and a high concentration nickel water collection tank (13), and the evaporation concentration system comprises a solar water heater (14), an electric heater (15), a hot water storage tank (16), a circulation pump (17), a trapezoidal multi-effect evaporation tower (18) and an ultrahigh concentration nickel water collection tank (19). The zero emission online circulation treatment system for the electroplated nickel containing waste water has the advantages that the nature of complete set of equipment is good, the automation degree is high, the recovery rate for nickel can reach to 99.98%, the water reuse rate can reach to 100%, the secondary pollution is prevented, the zero emission of the electroplated nickel containing waste water can be thoroughly achieved, and the system has an important significance for sustainable development of the electroplating industry.

Description

technical field [0001] The invention relates to a wastewater treatment device, in particular to a zero-discharge online circulation treatment system for electroplating nickel-containing wastewater, which belongs to the technical field of industrial wastewater treatment. Background technique [0002] The electroplating industry is an important processing industry in my country. It can perform special treatment on the surface of various metal and non-metal substrate materials through electrochemical technology, and plays an important role in decoration, protection, and even functionality. However, the cleaning water in the electroplating process contains a large amount of heavy metal ions. If it is not treated, it will seriously pollute the environmental noise. The waste nickel-containing water in electroplating production mainly comes from the deplating solution, chemical solution, waste plating solution, etc. after the nickel plating bath is used for a long time, iron, coppe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F1/44C02F1/04C02F103/16
CPCY02W10/37
Inventor 吕建来余素耘肖飞
Owner NANJING JIHONG ENVIRONMENTAL PROTECTION TECH
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