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Desulfurization wastewater treatment process and transfer device for this process

A desulfurization wastewater and treatment process technology, applied in the field of flue gas treatment, can solve the problems of inability to use wastewater, difficult storage and treatment, etc., and achieve the effect of convenient collection and storage of precipitates

Active Publication Date: 2022-05-17
杭州临江环保热电有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The above existing technical solutions have the following defects: the current treatment method for desulfurization wastewater is usually the oxidation method, but after the oxidation method is used, the desulfurization wastewater is already in liquid form, which is difficult to store and treat, and at the same time, the wastewater cannot be used

Method used

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  • Desulfurization wastewater treatment process and transfer device for this process
  • Desulfurization wastewater treatment process and transfer device for this process
  • Desulfurization wastewater treatment process and transfer device for this process

Examples

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Embodiment 1

[0054] The invention discloses a desulfurization wastewater treatment process, which is characterized in that it comprises the following steps:

[0055] S1. Collect, collect desulfurization wastewater. The desulfurization wastewater can be collected stably at the outlet of the desulfurization tower.

[0056] S1.1, neutralization, add a certain amount of 5% milk of lime solution as a neutralizing agent, and adjust the pH value of the desulfurization wastewater to above 9. Alkaline environment can cause most heavy metal ions to form insoluble hydroxide precipitates in alkaline environment. When the pH is 9.0~9.5, most of the heavy metal ions form insoluble hydroxides; at the same time, Ca2+ in milk of lime can also react with part of F- in wastewater to form insoluble CaF2 to achieve the effect of defluoridation effect.

[0057] S1.2. Settling, add organic sulfides such as mercaptan and thiophenol, and wait for insoluble substances to settle.

[0058] The content of Cd2+ and...

Embodiment 2

[0075] refer to figure 1 , on the basis of Example 1, the present invention discloses a transfer device for desulfurization wastewater treatment process, comprising a box 1, the top surface of the box 1 is provided with a feeding port, and the bottom surface of the box 1 is provided with a plurality of Directional wheels 11 and universal wheels 11 are respectively located at the four corners of the bottom of the box body 1. The bottom of the side wall of the box body 1 is fixedly connected with a discharge pipe 12. The discharge pipe 12 communicates with the inner space of the box body 1. There is a drainage pump 121 , and a discharge end cover 122 capable of covering the discharge pipe 12 is slidably connected to the inner wall of the box body 1 . After the desulfurization wastewater is obtained, the desulfurization wastewater is introduced into the box body 1, and the desulfurization wastewater can be oxygenated in the box body 1, and after a sufficient reaction, the dischar...

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PUM

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Abstract

The invention relates to a desulfurization wastewater treatment process, which comprises the following steps: S1, collecting, collecting desulfurization wastewater; S2, forced reaction, passing a sufficient amount of oxygen into the desulfurization wastewater; S3, evaporating and separating, evaporating the desulfurization wastewater to obtain Sulfur-containing solids; S4, storage, collecting and storing sulfur-containing solids. The invention has the effect of efficiently treating and reusing desulfurization wastewater.

Description

technical field [0001] The invention relates to the technical field of flue gas treatment, in particular to a desulfurization wastewater treatment process and a transfer device used in the process. Background technique [0002] At present, one of the main directions of flue gas treatment is to remove sulfur in flue gas. Usually, the removal of sulfur will be carried out in three ways: wet method, semi-dry method and dry method. The highest efficiency, and much higher than the other two methods, so in the situation of increasingly stringent environmental protection requirements, wet desulfurization is the most commonly used method; after wet desulfurization, desulfurization wastewater will be generated, because the wastewater contains a large amount of sulfur Elements are difficult to deal with in the desulfurization process. [0003] The existing technical solution can refer to the Chinese invention patent application publication number CN111087065A, which discloses a desul...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/10C01F11/46C01F11/48C02F103/18
CPCC02F9/00C01F11/46C01F11/48C02F1/04C02F1/66C02F2001/007C02F1/5245C02F1/001C02F2103/18Y02W10/37
Inventor 戴林祥杨伟春朱水兴汪书华靳刚蒋成君
Owner 杭州临江环保热电有限公司
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