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Steel and iron industrial thick brine treatment device and method

A treatment device, a technology for the iron and steel industry, applied in the direction of multi-stage water treatment, water/sewage treatment, metallurgical wastewater treatment, etc.

Pending Publication Date: 2018-12-11
BEIJING SCINOR WATER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] One of the objectives of the present invention is to provide a concentrated brine treatment device for the iron and steel industry with high processing efficiency, simple process, stable operation, simple operation and maintenance, low cost, energy recovery and energy saving in the treatment of concentrated brine, so as to solve the current problems There are problems with the process

Method used

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  • Steel and iron industrial thick brine treatment device and method
  • Steel and iron industrial thick brine treatment device and method

Examples

Experimental program
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Effect test

Embodiment 1

[0110] Concentrated brine RO water supply pump 2 is RO water supply pump model DFWH200-315 from Dongfang Pump Industry, and concentrated brine security filter 3 is a security filter with large flow rate replaceable cassette filter element from Fischer, model PF-SWV40-4VDFE08W Concentrated brine RO high-pressure pump 4 uses Sulzer model A32-80SO high-pressure pump, concentrated water RO device 5 uses Dow’s model BW30FR-400 / 34i anti-pollution RO membrane, new water pool 6, concentrated brine pool 7 Concentrated brine RO treatment unit. Among them, the concentrated brine pool 1 is connected with the concentrated brine RO water supply pump 2 through pipelines, the concentrated brine RO water supply pump 2 is connected with the concentrated brine security filter 3, the concentrated brine security filter 3 is connected with the concentrated brine RO high pressure pump 4, and the concentrated brine RO The high-pressure pump 4 is connected to the concentrated water RO device 5 through...

Embodiment 2

[0114] Concentrated brine RO water supply pump 2 is high-pressure pump model DFWH150-315 from Dongfang Pump Industry Co., Ltd. Concentrated brine security filter 3 is a security filter with replaceable cassette filter element from Fischer. Concentrated brine RO high-pressure pump 4 is Sulzer The model is the high-pressure pump of SNS4-65, concentrated water RO device 5 adopts BW30FR-400 anti-pollution RO membrane sold by Dow, the concentrated brine RO treatment unit composed of new water pool 6 and concentrated brine pool 7. The NF regulating tank 8, the water supply pump 9 and the NF water supply pump 13 are horizontal centrifugal pumps of the Dongfang Pump Industry Model DFW200-250 / 4 / 30, 10 multi-stage reaction sedimentation tanks, 11 chemical softening water production tanks, 12 sludge tanks, The multi-media filter 14 is a DN3000 steel-lined rubber multi-media filter sold by Jiangsu Wenbo Environmental Protection Equipment Co., Ltd., and the NF security filter 15 is a securi...

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Abstract

The invention relates to a steel and iron industrial thick brine treatment device and method, and belongs to the technical field of environment protection. The device sequentially comprises a thick brine reverse osmosis system, a nanofiltration system, a reverse osmosis seawater desalination system, a nanofiltration thick water pool and a fresh water pool, wherein the thick brine reverse osmosis system is connected with the nanofiltration system; the nanofiltration system is connected with the seawater desalination system; the reverse osmosis seawater desalination system is connected with thefresh water pool. According to the features of water, water treatment technologies such as chemical treatment, reverse osmosis membranes and nanofiltration membranes are organically combined and integrated into the thick brine treatment method; the device and the method mainly aim at the treatment and reuse of thick brine and concentrated brine; the water production stability is ensured; the energy is also saved.

Description

technical field [0001] The invention relates to a waste water treatment device and method, in particular to a concentrated brine treatment device and method in the iron and steel industry, and belongs to the technical field of environmental protection. Background technique [0002] At present, the treatment methods of concentrated brine mainly include electrolysis, membrane separation technology, biological method, etc. Among them, membrane separation technology is one of the most economical and effective methods for treating saline wastewater. With the development of reverse osmosis technology, it has become a membrane One of the most important ways to separate. [0003] Existing studies have used the evaporation pond process to treat saline wastewater. For this process, the concentrated water produced requires a large area of ​​​​evaporation ponds, which covers a large area, requires large investment, and high operating costs. It is easy to have a negative impact on the en...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F103/16
CPCC02F9/00C02F2303/14C02F2303/10C02F2301/08C02F2301/066C02F2103/16C02F5/10C02F1/50C02F1/442C02F1/441C02F1/70C02F1/5245C02F1/56C02F1/001Y02A20/131
Inventor 郭彩荣王为民于金旗梁丹张岩岗
Owner BEIJING SCINOR WATER TECH CO LTD
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