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Method using ozone for treating dinitrobenzene in car washing wastewater

A technology for dinitrobenzene and car washing waste water, applied in the field of traffic environment, can solve problems such as incomplete treatment of dinitrobenzene, and achieve the effect of eliminating emission pollution

Inactive Publication Date: 2012-10-03
XIAN FEISIDA AUTOMATION ENG
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Problems solved by technology

[0004] In order to overcome the problems of incomplete treatment of dinitrobenzene in car wash water by existing methods, the present invention proposes a method for treating dinitrobenzene in car wash wastewater by using ozone oxidation. The detection and adjustment of the concentration of nitrobenzene meet the conditions of the decomposition reaction of dinitrobenzene; according to the decomposition reaction formula, the speed at which the car wash wastewater is fed into the mixer is determined, so that the consumption of ozone is relatively low under the premise that the dinitrobenzene in the car wash water is completely treated. Small, in order to achieve the purpose of purifying car wash wastewater with low consumption

Method used

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  • Method using ozone for treating dinitrobenzene in car washing wastewater
  • Method using ozone for treating dinitrobenzene in car washing wastewater
  • Method using ozone for treating dinitrobenzene in car washing wastewater

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Embodiment Construction

[0018] Refer to attached figure 1 , this implementation is aimed at the treatment of dinitrobenzene in the car wash wastewater of a certain car wash shop, and the specific steps are as follows:

[0019] 1. According to the chemical reaction equation of dinitrobenzene and ozone:

[0020]

[0021] In the formula: is the chemical structural formula of dinitrobenzene, The chemical structure of nitrobenzene

[0022] Dinitrobenzene can be completely oxidized and decomposed by ozone under the conditions of car wash wastewater temperature of 10-40°C and pH>11 to produce water and dischargeable NO 2 and CO 2 , eliminating the pollution of dinitrobenzene and intermediate product nitrobenzene to the environment;

[0023] 3. According to the chemical reaction equation,

[0024]

[0025] In the formula: C 6 h 4 (NO 2 ) 2 The chemical formula for dinitrobenzene

[0026] Determine that the mass of ozone consumed per gram of dinitrobenzene is 2.37g, prepare the wastewater s...

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Abstract

The invention relates to a method for treating dinitrobenzene in car washing wastewater. Reaction conditions are achieved by means of detection of car washing wastewater temperatures, pH (potential of hydrogen) and dinitrobenzene concentration and adjustment of the car washing wastewater temperatures and the pH, and flow rate of the car washing wastewater entering a mixer is determined to enable low ozone consumption on the premise of complete treatment of the dinitrobenzene in the car washing wastewater, so that low-consumption purification of the car washing wastewater is achieved.

Description

technical field [0001] The invention relates to a method for treating dinitrobenzene in car wash wastewater, belonging to the technical field of traffic environment. Background technique [0002] With the improvement of people's living standards and the development of the economy, the number of cars owned by all walks of life and families is increasing, which has also brought about the prosperity of the car wash industry. Random discharge causes sewage to flow across. Car wash wastewater contains a large amount of pollutants such as oil, organic matter, and anionic synthetic detergents. If it is discharged directly without treatment, it will inevitably pollute the water body. Especially for large transportation vehicles, most of which travel long distances, the vehicles are contaminated with coal tar or fuel oil, and the pollutants cause great harm to the environmental water quality. It can be seen that the treatment and reuse of car washing wastewater is an inevitable tren...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/78C02F101/38
Inventor 史忠科刘鹏
Owner XIAN FEISIDA AUTOMATION ENG