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Ferrous sulfate concentration treatment system

A treatment system, ferrous sulfate technology, applied in the direction of filtration treatment, water/sewage treatment, metallurgical wastewater treatment, etc., can solve the problems of complex process, large equipment investment, high operation technology requirements, etc., to reduce the treatment capacity and discharge treatment Cost and energy saving effect

Pending Publication Date: 2020-07-10
德兰梅勒(北京)分离技术有限公司
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  • Claims
  • Application Information

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Problems solved by technology

Most of the first four methods have the disadvantages of large equipment investment, complicated process, and high technical requirements for operation.

Method used

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  • Ferrous sulfate concentration treatment system

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Embodiment Construction

[0022] Embodiments of the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and therefore are only examples, rather than limiting the protection scope of the present invention.

[0023] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application shall have the usual meanings understood by those skilled in the art to which the present invention belongs.

[0024] Such as figure 1 As shown, the present embodiment provides a ferrous sulfate concentrated treatment system, including a booster pump 1, a multimedia filter 2, a precision filter 3, a nanofiltration device group and a reverse osmosis device 11, the booster pump 1, The multi-media filter 2, the precision filter 3, the nanofiltration device group and the reverse osmosis device 1...

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Abstract

The invention discloses a ferrous sulfate concentration treatment system. The system comprises a booster pump, a multi-medium filter, a precision filter, a nanofiltration device set and a reverse osmosis device which are connected in sequence, the precision filter and the nanofiltration device set are connected by a first high-pressure pump, a second high-pressure pump is arranged between the nanofiltration device set and the reverse osmosis device, and a PH adjusting device is further arranged between the second high-pressure pump and the nanofiltration device set; the nanofiltration device set comprises a first nanofiltration device, a second nanofiltration device and a third nanofiltration device, and a third high-pressure pump is arranged between the third nanofiltration device and thefirst nanofiltration device. The technical scheme has the beneficial effects that: impurities in raw water are removed by adopting a multi-stage filtration and concentration mode, the filtered waterreaching the standard is recycled, and the obtained concentrated water is subjected to biochemical treatment, so that the work amount of biochemical treatment is reduced, and water resources are alsosaved.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a ferrous sulfate concentration treatment system. Background technique [0002] Hot-dip galvanizing technology is one of the most effective means to delay the environmental corrosion of steel materials. During the pickling and rinsing stages, wastewater containing Zn2+ and Fe2+ will be generated, mainly FeSO4, FeCl2, ZnSO4, ZnCl2, etc. Alkaline neutralization is currently used The main reactions to deal with this pickling wastewater are: [0003] (1)H + +OH - →H 2 o [0004] (2) Fe 3+ +3OH-→Fe(OH) 3 ↓, Fe 2+ +2OH - →Fe(OH) 2 ↓, [0005] (3)Zn 2+ +2OH - →Zn(OH) 2 ↓ [0006] However, the amount of neutralization agent used in the neutralization method is large, a large amount of return water is required, the equipment investment is high, and a large amount of waste residue is generated. The secondary pollution is serious. The content of ferrous sulfate in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10C02F103/16
CPCC02F1/001C02F1/04C02F1/441C02F1/442C02F1/66C02F9/00C02F2103/16C02F2209/005
Inventor 苏战华王晓强苏仲民张思睿郑婷婷
Owner 德兰梅勒(北京)分离技术有限公司
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