Zero emission online circulation treatment system for electroplated nickel containing waste water
A cyclic treatment, zero-discharge technology, applied in energy wastewater treatment, metallurgical wastewater treatment, heating water/sewage treatment, etc., can solve the problems of increasing the chemical composition of wastewater, unable to realize online recycling of nickel-containing wastewater, etc., and achieve a high degree of automation , Improve the service life and relieve the operating pressure
Active Publication Date: 2014-02-12
NANJING JIHONG ENVIRONMENTAL PROTECTION TECH
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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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[0024] In the following, the present invention will be further clarified with reference to the accompanying drawings and specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. After reading the present invention, those skilled in the art will understand various aspects of the present invention. Modifications in equivalent forms fall within the scope defined by the appended claims of this application.
[0025] Such as figure 1 As shown, a zero-discharge on-line recycling treatment system for nickel-containing electroplating wastewater includes: a preliminary pretreatment system, a filtration permeation system and an evaporation concentration system;
[0026] The pre-treatment system includes the original water tank (1), booster pump (2), MBR membrane treatment device (3), bag filter (4), oil removal filter (5), security filter (6) , The original pool (1) is connected...
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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, belonging 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 treatments on the surface of various metal and non-metal base 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 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, copper, zinc plasma wil...
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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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