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Waste acid processing method

A gas and reaction technology, applied in the field of waste acid treatment, can solve the problems of failure to realize the final disposal of waste acid and the inability to use acid liquid, etc.

Pending Publication Date: 2016-12-14
BEIJING BBMG BEISHUI ENVIROMENTAL TECH CO LTD +1
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  • Description
  • Claims
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Problems solved by technology

Although these two methods have purified part of the waste acid, there are still a large amount of unusable acid liquid, which still needs secondary disposal, and the final disposal of the waste acid has not been realized.

Method used

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  • Waste acid processing method

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Embodiment Construction

[0029] Hereinafter, the present invention will be described in more detail with reference to the accompanying drawings.

[0030] figure 1 A process flow diagram showing a method for treating spent acid according to a specific embodiment of the present invention, the method for treating spent acid includes:

[0031] To react, the waste acid and the waste alkali are mixed for reaction.

[0032] At the same time as the reaction step, a gas extraction step is performed to separate the gas generated in the reaction step from the mixed liquid of the spent acid and the spent alkali.

[0033] Incineration, the liquid obtained after the reaction step and the gas obtained in the gas extraction step are input into a cement kiln for incineration.

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Abstract

The invention discloses a waste acid processing method. The method comprises the steps that waste acid and waste base are mixed for a reaction, and the liquid after obtained after reaction is input into a cement kiln to be incinerated. According to the waste acid processing method, waste acid and waste base produced during industrial production are processed at the same time, the liquid, residue and gas obtained after reaction of waste acid and waste base are introduced into the cement kiln to be incinerated, waste acid and waste base can be processed at the same time, and secondary pollution is avoided.

Description

technical field [0001] The invention relates to the field of environmental protection, more specifically, to a method for treating waste acid. Background technique [0002] A large amount of waste liquid is produced every year in my country's industrial production, and these waste liquids are mainly waste acid and waste alkali. Waste acid is included in the "National Hazardous Waste List" due to its strong corrosiveness. Waste acid that is not disposed of will not only cause harm to people, but also easily pollute the environment. There are a large amount of waste acid and waste alkali in my country every year due to Without effective treatment, the environment is seriously polluted. [0003] At present, the main disposal process of waste acid is to use resin exchange method or membrane method to purify. After these two methods, the waste acid is divided into two parts, one part is the purified acid that can be reused, and the other part is low-concentration waste acid. sal...

Claims

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Application Information

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IPC IPC(8): C02F1/66F23G7/04F23G7/06
CPCF23G7/04F23G7/06C02F1/66F23G2209/101F23G2209/14
Inventor 蔡金山孙文坛王义春刘海民张科王俊山李继荣
Owner BEIJING BBMG BEISHUI ENVIROMENTAL TECH CO LTD
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