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Method for preparing nickel removing ion sieve and device for processing nickel wastewater

A treatment device, nickel ion technology, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problem of difficult electroplating wastewater treatment, effective, stable, economical, complex harmful components, etc. problem, to achieve the effect of stable treatment quality, low cost and good adsorption

Active Publication Date: 2015-06-03
SHENZHEN HUASHUI ENVIRONMENTAL PROTECTION TECH
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Problems solved by technology

Due to the complexity of the harmful components of electroplating wastewater, it is difficult for a single treatment method to meet the requirements of effective, stable and economical treatment of electroplating wastewater

Method used

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  • Method for preparing nickel removing ion sieve and device for processing nickel wastewater

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] The preparation method of nickel ion sieve of the present invention comprises the following steps:

[0027] First, stir the montmorillonite matrix in the lead chloride solution for 4h~6h. In other embodiments, the stirring time may be 5 hours as required.

[0028] Then, perform centrifugal separation, and bake the separated solid in an oven at 150°C-280°C for 8h-12h. In other embodiments, the temperature in the oven can be 200°C, and the baking time can be 10 hours.

[0029] Next, after the baked solid is cooled, it is mixed with nitric acid solution and stirred for 3h~6h. In other embodiments, the mixing time may be 4.5 hours.

[0030] Finally, the solid obtained by centrifugation is baked in an oven at 250 ° C ~ 450 ° C for 8 h ~ 12 h, and after natural cooling, the composite nickel ion removal sieve is obtained. The ion sieve has good ads...

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Abstract

The invention discloses a method for preparing a nickel removing ion sieve and a device for processing nickel wastewater. The method comprises the following steps of stirring a montmorillonite matrix for 4-6 hours in a lead chloride solution; carrying out centrifugal separation, and baking a separated solid for 8-12 hours in an oven at the temperature of 150-280 DEG C; after the solid is cooled, mixing the solid with a salpeter solution then stirring for 3-6 hours; and baking a solid obtained through centrifugal separation in the oven at the temperature of 250-450 DEG C, and then naturally cooling. The device comprises a preprocessing pond, a water pump A, an electric catalytic oxidation tank, a nickel removing ion sieve adsorption tank and a settling pond, which are sequentially connected. The nickel removing ion sieve prepared with the method is arranged in the nickel removing ion sieve adsorption tank. The device combines an electric catalytic oxidation method with an ion sieve adsorption method, so that organic pollutants of the nickel wastewater can be effectively removed, and the device plays good adsorption to metal nickel ions in the nickel wastewater. The processed nickel wastewater can be discharged with a standard level or recycled. The processing quality is stable, and the cost is lower.

Description

technical field [0001] The invention relates to a preparation method of an ion sieve, and also relates to a device for treating nickel-containing wastewater by using the ion sieve. The preparation method of the ion sieve includes the step of stirring the montmorillonite matrix in the lead chloride solution, and the nickel-containing wastewater treatment device includes an electrocatalytic oxidation tank and an adsorption tank for nickel-removing ion sieve for adsorption by the ion sieve. Background technique [0002] Electroplating is the process of using electrochemical methods to protect or decorate the surface of metal or non-metal products. Compared with other industries, the electroplating industry has less wastewater discharge. However, because many complexing agents and stabilizers are usually added to the electroplating solution, the electroplating wastewater is rich in harmful organic substances and heavy metals (especially nickel), which is harmful to the environme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/12B01J20/30C02F9/06C02F101/20
Inventor 王林双
Owner SHENZHEN HUASHUI ENVIRONMENTAL PROTECTION TECH