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System and method for recycling waste water from sintering flue gas desulfurization

A treatment system and desulfurization wastewater technology, which is applied in the direction of gaseous effluent wastewater treatment, degassed water/sewage treatment, water/sewage treatment, etc., can solve the problems of immature sintering flue gas desulfurization wastewater treatment process, and achieve effective resource utilization. The effects of efficient utilization, reduction of pungent odor, and simple process equipment

Active Publication Date: 2021-09-03
DATANG ENVIRONMENT IND GRP
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Problems solved by technology

Therefore, for the sintering flue gas desulfurization system and process, my country is still in its infancy, and the sintering flue gas desulfurization wastewater treatment process is still immature

Method used

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  • System and method for recycling waste water from sintering flue gas desulfurization
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  • System and method for recycling waste water from sintering flue gas desulfurization

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[0038] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0039] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form also includes the plural form, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this description, it indicates that there are Features, steps, operations, devices, components and / or combinations thereof.

[0040] The technical solutions of the present invention will be clearly and completely described below...

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Abstract

The present invention relates to the technical field of environmental protection, and in particular to a resource treatment system and method for sintering flue gas desulfurization wastewater, wherein the resource treatment system includes a primary reactor, an ammonia nitrogen removal mechanism, a secondary reactor, Oil removal mechanism, concentration mechanism, and bipolar membrane electrodialysis device; wherein, the ammonia nitrogen removal mechanism includes a stripping tower and a chlorine oxidation pool connected in sequence; the primary reactor communicates with the stripping tower, and the chlorine The oxidation tank is communicated with the secondary reactor; the concentration mechanism and the bipolar membrane electrodialysis device are respectively connected in reverse with the primary reactor; the bipolar membrane electrodialysis device is connected with the chlorine oxidation tank reverse connectivity. The process and equipment of the resource treatment system of the present invention are simple, and each unit plays its own role and serves each other. It can effectively treat sintering machine desulfurization wastewater with high ammonia nitrogen, high oil content, and high hardness, and at the same time realize effective resource utilization of salt components in the wastewater.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a resource treatment system and method for sintering flue gas desulfurization wastewater. Background technique [0002] The sintering process in my country's iron and steel smelting process is the main source of air pollution, and the proportion of exhaust gas discharged in the entire iron and steel plant is: flue gas 17%, SO 2 6%, NO x 20%. Therefore, the treatment of sintering flue gas has become a SO 2 The focus of emission reduction. [0003] Sintering flue gas desulfurization is the key to realize the reduction of sulfur dioxide pollution in the iron and steel industry. The situation is severe and the task is urgent. At present, wet flue gas desulfurization technology is widely used in various industries due to its high utilization rate of desulfurizers and absorbents, short reaction time and high desulfurization efficiency. Among them, limestone-gypsu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/10C02F103/18C02F101/16C02F101/10
CPCC02F1/20C02F1/24C02F1/283C02F1/285C02F1/40C02F1/442C02F1/444C02F1/447C02F1/4695C02F1/52C02F1/56C02F1/62C02F1/66C02F1/76C02F5/06C02F5/125C02F9/00C02F2101/10C02F2101/16C02F2103/18
Inventor 高阳刘海洋谷小兵白玉勇崔焕民李飞荆亚超麻晓越杨言彭思伟
Owner DATANG ENVIRONMENT IND GRP
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