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A method for treating comprehensive electroplating wastewater containing chemical nickel

A comprehensive electroplating and integrated wastewater technology, which is applied in chemical instruments and methods, metallurgical wastewater treatment, water/sewage multi-stage treatment, etc., can solve the problem of difficult removal of treatment costs, and achieve the effect of stable water output and low treatment costs

Active Publication Date: 2018-02-16
SHENZHEN LVQIN ENVIRONMENTAL PROTECTION TECH CO LTD
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Problems solved by technology

[0004] Aiming at the above-mentioned problems in the prior art that it is difficult to remove electroplating comprehensive wastewater containing chemical nickel and the treatment cost is too high, the present invention provides a device and method for treating electroplating comprehensive wastewater containing chemical nickel. The combined treatment of electroplating comprehensive wastewater containing chemical nickel and ion exchange can not only make the heavy metal ions of electroplating comprehensive wastewater meet the discharge standard, but also can effectively absorb chemical nickel ions

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  • A method for treating comprehensive electroplating wastewater containing chemical nickel

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Embodiment Construction

[0028] The substantive features of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0029] Such as figure 1 Shown, a kind of device that the present invention provides for the treatment of electroplating comprehensive waste water containing chemical nickel, it comprises: comprehensive tank, regulating tank, the first settling tank, the second settling tank, cyanide breaking tank and ion exchange column; There is an air flotation machine between the adjustment tanks, which is a jet air flotation degreasing machine, which is mainly used to remove most of the oil and suspended solids contained in the sewage; the adjustment tank is connected to the first sedimentation tank, and the adjustment tank is connected to the first There is a first reaction tank between the sedimentation tanks; the first sedimentation tank is connected to the second sedimentation tank, and a second reaction tank is arranged betw...

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Abstract

The invention discloses a device and method for treating comprehensive electroplating waste water containing chemical nickel. There is an air flotation machine between the tanks; the regulating tank is connected to the first sedimentation tank, and the first reaction tank is arranged between the regulating tank and the first sedimentation tank; the first sedimentation tank is connected to the second sedimentation tank, and the first sedimentation tank is connected to the second A second reaction tank is arranged between the sedimentation tanks; the second sedimentation tank is connected to the cyanide breaking tank; the cyanide breaking tank is connected to the ion exchange column. The method mainly includes reducing the amount of total phosphorus by using hypophosphorus agent; removing heavy metal ions in the comprehensive wastewater by using an oxygen-like method; and finally using an ion exchange method to adsorb and remove chemical nickel contained in the comprehensive wastewater, so that the comprehensive wastewater reaches the discharge standard. The invention has the advantages of simple process, good effect of treating electroplating comprehensive wastewater containing chemical nickel, low treatment cost, stable effluent and strong applicability.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a device and method for treating electroplating comprehensive wastewater containing chemical nickel. Background technique [0002] With the wide application of electroplating technology and its contribution to industry, electroplating wastewater has also brought serious environmental pollution problems, and electroplating wastewater is very complex. In addition to cyanide wastewater and acid-base wastewater, heavy metal wastewater is a potential hazard in the electroplating industry. Large wastewater category. Therefore, the problem of electroplating wastewater treatment has attracted the attention of the majority of people. There are a variety of treatment technologies available to eliminate or reduce the discharge of heavy metals through measures such as treating toxic to non-toxic, converting harmful to harmless, recycling heavy metals, and recycling them. To make th...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F101/20C02F101/22C02F103/16
Inventor 郭聪
Owner SHENZHEN LVQIN ENVIRONMENTAL PROTECTION TECH CO LTD
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