Wastewater treatment apparatus used in stainless steel production, and treatment method thereof

A waste water treatment, stainless steel technology, applied in the field of membrane separation, can solve the problems of insignificant waste water reduction effect, low waste water recovery rate, high energy consumption, etc., and achieve the effect of increasing equipment operating costs and operating costs

Pending Publication Date: 2018-04-20
杭州赛菲膜分离技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above comparative patents have disadvantages such as low wastewater recovery rate, insignificant reduction effect on wastewater, large energy consumption, and high cost.

Method used

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  • Wastewater treatment apparatus used in stainless steel production, and treatment method thereof
  • Wastewater treatment apparatus used in stainless steel production, and treatment method thereof
  • Wastewater treatment apparatus used in stainless steel production, and treatment method thereof

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Embodiment Construction

[0040] The present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are explanations of the present invention and the present invention is not limited to the following examples.

[0041] Example.

[0042] see Figure 1 to Figure 8 It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the present invention Therefore, it has no technical substantive meaning, and any modification of structure, change of proportional relationship or adjustment of size shall still fall into the within the scope covered by the technical content disclosed in the present invention. At the same time, if terms such as "upper", "lower", "left", "right", "middle" and "one" are used in this spec...

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Abstract

The invention relates to a wastewater treatment apparatus used in stainless steel production, and a treatment method thereof, and belongs to the field of membrane separation. The composition of wastewater is complex, so the wastewater is not suitable for centralized treatment. The apparatus includes a sedimentation device, a reverse osmosis device, an electrical descaling device, an electrodialysis device, an evaporation device, wires and pipelines, the wires include a No. 3 wire and a No. 4 wire, the pipelines includes a No. 2 pipeline, a No. 3 pipeline, a No. 4 pipeline, a No. 5 pipeline, aNo. 7 pipeline, a No. 8 pipeline, a No. 9 pipeline, a No. 10 pipeline, a No. 11 pipeline, a No. 12 pipeline, a No. 13 pipeline and a No. 14 pipeline, the sedimentation device is connected with the reverse osmosis device through the No. 2 pipeline, the reverse osmosis device is connected with the electric descaling device through the No. 7 pipeline, the electric descaling device is connected with the electrodialysis device through the No. 8 pipeline, and the electrodialysis device is connected with the evaporation device through the No. 14 pipeline. Precipitate generated by first-grade concentrated water is adsorbed on a positive descaling electrode and a negative descaling electrode, so the ion concentration is reduced, and the hidden troubles of scaling are eliminated.

Description

technical field [0001] The invention relates to a waste water treatment device and a treatment method used in stainless steel production, belonging to the field of membrane separation. Background technique [0002] Small stainless steel processing enterprises carry out degreasing, shearing, welding and other processing of stainless steel in the process of processing. In order to remove the oil stains on the surface, the scale, residual iron powder, welding residue, scars and other foreign matters on the surface, most of them use decontamination powder, The stainless steel pickling liquid is processed, and after the treatment, it needs to be rinsed with water to generate cleaning wastewater. The composition of cleaning wastewater is complex, and it contains heavy metal ions, so it cannot be discharged at will. At present, such stainless steel processing enterprises are relatively scattered, with a large output of wastewater and complex components, which are not suitable for ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F103/16
CPCC02F9/00C02F2001/007C02F2103/16C02F2301/08C02F1/4693C02F1/4602C02F1/441C02F1/46104C02F1/048C02F1/001
Inventor 卫龙徐寅初汪文阳
Owner 杭州赛菲膜分离技术有限公司
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