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Treatment method of aluminum anodization waste water

A technology for oxidizing wastewater and treatment methods, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc. Achieve the effect of reducing production costs, expanding production capacity, and reducing environmental protection costs

Inactive Publication Date: 2013-11-13
TIANCHANG JINGFA ALUMINUM IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The wastewater produced by anodic oxidation contains a large amount of heavy metals. The ionic composition in the wastewater is complex and the pollution is serious. It is difficult to treat and discharge to meet the standards.

Method used

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  • Treatment method of aluminum anodization waste water
  • Treatment method of aluminum anodization waste water
  • Treatment method of aluminum anodization waste water

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Embodiment Construction

[0016] In order to facilitate understanding of the present invention, the present invention enumerates the following examples. Those skilled in the art should understand that the examples are only used to help understand the present invention, and should not be regarded as specific limitations on the present invention.

[0017] Unless otherwise specified, various raw materials of the present invention can be obtained commercially; or prepared according to conventional methods in the art. Unless otherwise defined or stated, all professional and scientific terms used herein have the same meaning as is familiar to those skilled in the art. In addition, any methods and materials similar or equivalent to those described can be applied to the method of the present invention.

[0018] Unless otherwise indicated, all professional and scientific terms used herein have the same meaning as is familiar to those skilled in the art.

[0019] In addition, any methods and materials similar ...

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Abstract

The invention discloses a treatment method of aluminum anodization waste water, which comprises the following steps: (1) discharging a mixture of acid and alkaline water in a workshop; (2) conducting sedimentation in a sedimentation pond; (3) conducting neutralizing treatment in a neutralization pond; (4) conducting air floatation and mud scraping in an air floatation pond; and (5) filtrating. The treatment method of aluminum anodization waste water can reduce discharge volume of the wastewater, realize energy saving and emission reduction or zero emission and reduce cost of environmental-friendly treatment and detection results of main pollutants in the wastewater can reach standards at level two; the treatment method can be used for waste water reuse for production and is beneficial for energy conservation, environmental protection, expansion and reduction of production cost.

Description

technical field [0001] The invention relates to the technical field of waste water treatment and recovery, in particular to a treatment method for aluminum anodic oxidation waste water. Background technique [0002] With the continuous development of the aluminum product processing industry, anodic oxidation or chemical oxidation is more and more widely used in the industry to form an oxide film on the surface of aluminum and aluminum alloy parts to achieve the purpose of protection and decoration. The oxide film obtained by chemical oxidation treatment generally has a thickness of 0.3-4um, and is softer, wear-resistant and corrosion-resistant than the anodized film. The oxide film obtained by anodic oxidation treatment generally has a thickness of 5-20v m, and the thickness of hard anodized film can reach 60-2500m. Its film layer also has the following characteristics: (1) high hardness; (2) high corrosion resistance; (3) strong adsorption capacity; (4) good insulation per...

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Application Information

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IPC IPC(8): C02F9/04
Inventor 俞金发
Owner TIANCHANG JINGFA ALUMINUM IND