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Industrial wastewater treatment device and treatment method

A technology for industrial wastewater and treatment devices, applied in water/sludge/sewage treatment, chemical instruments and methods, descaling and water softening, etc. Not easy to secondary pollution, high removal rate, simple and reasonable structure

Active Publication Date: 2013-04-03
BEIJING NOVEL ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, the existing fluidization-induced crystallization deposition method has a low removal rate in wastewater softening, which can only reach about 63%, which cannot meet the requirements of industrial wastewater treatment.

Method used

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  • Industrial wastewater treatment device and treatment method
  • Industrial wastewater treatment device and treatment method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] Such as figure 1 Shown, a kind of industrial waste water treatment device, described device is fixed-bed reactor, comprises:

[0056] Reactor body 1, the reactor body 1 has a wall, and has a closed bottom and an upwardly open top, the inside of which is fixed and filled with 2.5cm×2.5cm polyurethane filler through a mesh plate;

[0057] The water inlet pipe 2 runs through the wall of the reactor main body 1, opens into the inner space of the reactor main body 1, and is located at the lower part of the reactor main body 1, for allowing waste water to enter the reactor;

[0058] The water outlet pipe 3 runs through the wall of the reactor main body 1, opens into the inner space of the reactor main body 1, and is located at the upper part of the reactor main body 1, and is used to discharge the treated waste water;

[0059] The aeration pipe 8 is arranged through the wall of the reactor main body 1, is located at the bottom of the reactor main body 1, and opens into the i...

Embodiment 2

[0063] Such as figure 2 Shown, a kind of industrial waste water treatment device, described device is fluidized bed reactor, comprises:

[0064] Reactor body 1, the reactor body 1 has a wall, and has a closed bottom and an upwardly open top, which is filled with silica sand with a particle size of 0.1mm;

[0065] The water inlet pipe 2 runs through the wall of the reactor main body 1, opens into the inner space of the reactor main body 1, and is located at the lower part of the reactor main body 1, for allowing waste water to enter the reactor;

[0066] The water outlet pipe 3 runs through the wall of the reactor main body 1, opens into the inner space of the reactor main body 1, and is located at the upper part of the reactor main body 1, and is used to discharge the treated waste water;

[0067] The sewage pipe 4 is arranged through the wall of the reactor main body 1, opens in the inner space of the reactor main body 1, and is located at the bottom of the reactor main bod...

Embodiment 3

[0074] The device of this example is a fluidized bed reactor, and the difference from Example 2 is that the lower part of the main body of the reactor is cylindrical, and the upper part is cylindrical with a diameter larger than that of the lower part.

[0075] The lower part of the main body of the reactor has a diameter of 200 mm and a height of 1.5 m, and the upper part has a diameter of 300 mm and a height of 0.5 m.

[0076] The device is used to treat methanol wastewater in Xinnengda Banner. The concentration of calcium ions in high-hard methanol wastewater is 1275mg / L (calculated as calcium carbonate), the concentration of magnesium ions is 540mg / L, and the pH is adjusted to 9. The inflow of high-hard methanol wastewater is 200L / day, and the internal circulation speed is 0.06m / s. Calcium and magnesium ions gradually crystallize and grow on the calcium carbonate crystals. After stabilization, the concentration of calcium ions in the effluent of the fluidized bed is 248mg / L...

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Abstract

The invention relates to an industrial wastewater treatment device and a treatment method. The device comprises a reactor body, a water inlet pipe, a water outlet pipe, a blow-off pipe and the like, wherein the reactor body is filled with a filler. According to the device and the method, inorganic ions in the industrial wastewater are crystallized and precipitated, and grow on the surface of the filler to form heterogeneous crystallization, so that the inorganic ions in the industrial wastewater are removed effectively; and the treated qualified waste water is discharged out of the reactor from the water outlet pipe. Water treatment can be conducted continuously through a method such as filler supplementing or filler regeneration. Compared with a conventional treatment method, the device does not need flocculation, precipitation or other units; no sludge is produced; and the device has the advantages that treatment speed and removing efficiency are high, secondary pollution cannot be caused easily, so as to have a broad prospect in actual industrial application.

Description

technical field [0001] The invention relates to the technical field of industrial wastewater treatment, in particular to an industrial wastewater treatment device and a treatment method. Background technique [0002] The hardness of wastewater discharged from industries such as chemical industry, metallurgy, electronics, electroplating, and papermaking is relatively high, which can easily cause corrosion and scaling of wastewater treatment pipelines, equipment and packing, and bring a series of problems to subsequent wastewater treatment, such as shortening the service life of equipment and pipelines. The service life adds a lot of workload to normal maintenance and management. The fillers used in biological treatment are prone to scaling and clogging. The head loss increases due to pipeline clogging, and the discharge of unqualified water increases due to the deterioration of water quality. Therefore, the fouling problem of wastewater has attracted more and more attention. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/00
Inventor 李伟王丽梅李立敏贾永强闫东杰贾立庄冯功源
Owner BEIJING NOVEL ENVIRONMENTAL PROTECTION
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