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Aniline alkaline wastewater treatment method

A treatment method and aniline base technology, applied in water/sewage treatment, water/sewage multi-stage treatment, water/sewage treatment equipment, etc., can solve problems such as practical application impact

Active Publication Date: 2021-09-14
山西猗顿生态环保股份有限公司
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Problems solved by technology

[0003] At present, there are many oxidative degradation methods for aniline alkaline wastewater at home and abroad, such as ozone oxidation degradation, UV-TiO2 catalytic oxidation, UV-Fenton oxidation degradation, etc., but these methods have different degrees of problems in terms of economic and technical control. Practical applications are greatly affected

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Embodiment Construction

[0030] In order to facilitate the understanding of the technical means, technical features and objectives of the present invention, the present invention is further described below in conjunction with specific examples, but the scope of protection claimed by the present invention is not limited to the scope described in the specific examples.

[0031] The treatment method of aniline alkaline wastewater of the present invention is applied to fast ion conductor membrane electrochemical equipment, one-stage fast ion conductor particle electrode electrochemical device and two-stage fast ion conductor particle electrode electrochemical device, wherein, such as figure 2 As shown, the fast ion conductor membrane electrochemical equipment includes a reactor 1, and two porous splints 1 arranged in parallel are fixed in the reactor 1, and a fast ion conductor membrane is clamped in the interlayer inside each porous splint 1, and the reactor The inner cavity of I is sequentially divided ...

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Abstract

The method for treating aniline alkaline wastewater relates to the technical field of wastewater treatment. It uses fast ion conductor membrane electrochemical equipment and two-stage fast ion conductor particle electrode electrochemical devices to treat aniline alkaline wastewater. In addition to traditional electrochemical characteristics, such as In addition to multiple functions, high energy utilization rate, process controllability, high environmental compatibility, and economic benefits, through a series of electrochemical processes in the electrochemical reaction device of double fast ion conductor positive membrane and fast ion conductor particle electrode, the removal of waste water is achieved. The purpose of pollutants, COD removal rate of 50 to 95%.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a treatment method for aniline alkaline wastewater. Background technique [0002] Benzene and nitric acid are nitrated under the catalysis of sulfuric acid to produce crude aniline alkaline wastewater. Aniline alkaline wastewater (NB) is an important chemical raw material and intermediate, which can be used in dyes, pesticides, plastic additives, detergents, etc. Aniline alkaline wastewater (NB) is extremely difficult to biodegrade. After entering the water body, it will cause long-term serious deterioration of water quality. It is one of the 58 priority toxic chemicals determined by my country. The crude aniline alkaline wastewater is pickled to remove the entrained sulfuric acid, and then the by-product of the nitrification reaction - triphenylamine alkaline wastewater phenol is removed by alkali washing, and the aniline alkaline wastewater after pickling and alka...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/06C02F1/461C02F1/467C02F1/469C02F101/38
CPCC02F1/001C02F1/46104C02F1/467C02F1/469C02F2101/38C02F2201/461
Inventor 武静轩
Owner 山西猗顿生态环保股份有限公司
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