Ammonia-nitrogen electrolysis tail gas treatment system

一种尾气处理、氨氮的技术，应用在气体处理、膜技术、弥散粒子分离等方向，能够解决气体不符合排放标准、无法有效地抑制气体臭味、恶臭等问题

Inactive Publication Date: 2018-02-09
CONCORD TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The governments of various countries have set very strict discharge standards for the ammonia nitrogen wastewater discharged by industry, so there are different ammonia nitrogen wastewater treatment methods in the industry, one of which is to use electrolysis for degradation, that is, the ammonia nitrogen wastewater is introduced into the electrolytic cell and used salt Water is used as the electrolyte, and after electrolysis, nitrogen, hydrogen, ammonia, chlorine, chloramine and other gases will be produced. However, the aforementioned gases do not meet the emission standards. If they are discharged directly, they will produce foul odor and even pollute the environment.
[0003] However, the prior art method is to use water washing and add reducing substances instead of controlling the pH value and redox potential. Although reducing substances are added, the amount of reducing drugs will be greatly increased due to the acid radicals produced in the water. , and can not effectively suppress the odor of the gas

Method used

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Embodiment Construction

[0034] The invention provides a tail gas treatment system of ammonia nitrogen electrolysis, such as Figure 1 to Figure 2 As shown, it is used to connect an electrolyzer 99, and the tail gas treatment system of this ammonia nitrogen electrolysis includes:

[0035] A first washing tower 10 is connected with the electrolytic tank 99, and the first washing tower 10 is used to receive the gas discharged from the electrolytic tank 99. The first washing tower 10 has a first gas inlet 11 and a first gas outlet 12. A first liquid inlet 13, a first washing liquid storage tank 14, a first washing chamber 15, a first dosing device 16, the first washing chamber 15 communicates with the first gas inlet 11, the The first gas outlet 12 and the first washing liquid storage tank 14, the first liquid inlet 13 is located above the first washing chamber 15, the first liquid inlet 13 has a first sprinkler 131, the first gas The inlet 11 is used to introduce gas into the first washing chamber 15. ...

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Abstract

The invention provides an ammonia-nitrogen electrolysis tail gas treatment system. The ammonia-nitrogen electrolysis tail gas treatment system has the advantages that a first washing tower and a second washing tower are connected with the rear of a tail gas emission opening of an electrolytic tank, and peculiar smell of ammonia-nitrogen waste gas emitted from the electrolytic tank can be reduced by reducing chemicals at the first washing tower; dissipation smell of ammonia gas under the condition of high PH (potential of hydrogen) values can be removed by acidic materials such as sulfuric acidor hydrochloric acid in the second washing tower, accordingly, peculiar smell of electrolyzed tail gas can be reduced, and dissipation of the ammonia gas can be decreased; a PH value of washing liquid of the first washing tower keeps higher than 8 in procedures for reducing the smell of the gas by the aid of the reducing chemicals, and the usage amount of reducing agents can be effectively reduced.

Description

technical field [0001] The invention relates to a gas treatment device, in particular to a treatment system for ammonia nitrogen waste gas produced after ammonia nitrogen wastewater is electrolyzed. Background technique [0002] The governments of various countries have set very strict discharge standards for the ammonia nitrogen wastewater discharged by industry, so there are different ammonia nitrogen wastewater treatment methods in the industry, one of which is to use electrolysis for degradation, that is, the ammonia nitrogen wastewater is introduced into the electrolytic cell and used salt Water is used as the electrolyte, and after electrolysis, nitrogen, hydrogen, ammonia, chlorine, chloramine and other gases will be produced. However, the aforementioned gases do not meet the emission standards, and if they are discharged directly, they will produce foul odors and even pollute the environment. [0003] However, the prior art method is to use water washing and add redu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/54B01D53/58B01D53/68B01D53/75B01D53/79
CPCB01D53/54B01D53/58B01D53/68B01D53/75B01D53/79B01D2251/20B01D2251/304B01D2251/306B01D2251/502B01D2251/506B01D2251/604B01D2251/608B01D2257/2025B01D2257/2045B01D2258/02
Inventor 蒋腾亿林纬平林守堂
Owner CONCORD TECH CO LTD
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