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Treatment technology of mesitylene amine

A technology of mesitylene and waste water, applied in water/sewage treatment, reduced water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problem of high toxicity of aniline, failure to meet secondary emission standards, and non-compliance with national environmental protection requirements, etc.

Inactive Publication Date: 2006-09-13
江阴市倪家巷化工有限公司 +1
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Problems solved by technology

[0004] Its production wastewater contains benzene and aniline compounds. According to the characteristics of high toxicity and high concentration of aniline in mesitylene wastewater, if it is discharged directly without wastewater treatment, it will not meet the national secondary discharge standard and do not meet the national environmental protection requirements.

Method used

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  • Treatment technology of mesitylene amine
  • Treatment technology of mesitylene amine

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Embodiment Construction

[0019] The present invention relates to a method for treating mesitidine wastewater, which comprises adding formaldehyde to the mesitidine wastewater for polycondensation reaction and precipitation of condensate, and then adding polymer flocculant polyacrylamide (PAM) for precipitation, thereby The content of aniline compounds in the wastewater is greatly reduced. Then it is treated with the iron-carbon method, and the effluent from the iron-carbon reaction tower is mixed with other industrial wastewater for aerobic biochemical treatment to meet the national secondary discharge standard. Its specific process steps refer to figure 1 :

[0020] Step 1, polycondensation reaction

[0021] Mesitidine waste water is collected into regulating tank 1. Add sulfuric acid (concentration ≤ 50%) into the pool to adjust the pH to 6, and stir with air to make the mixture even. The waste water in the regulating tank I is lifted to the enamel reaction kettle with a pump, and the mixer is s...

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Abstract

A process for treating the sym-trimethylaniline sewage includes such steps as adding formaldehyde and aluminum sulfate, polycondensation reaction while generating polycondensate, adding high-molecular flocculant polyacrylamide, depositing, treating by Fe-C method, mixing the treated water with other industrial sewages, and areobic biochemical treating.

Description

Technical field: [0001] The invention relates to a method for treating mesitidine wastewater, which belongs to the technical field of chemical wastewater treatment. technical background: [0002] The production process of mesitylene is as follows [0003] [0004] Its production wastewater contains benzene and aniline compounds. According to the characteristics of high toxicity and high concentration of aniline in mesitylene wastewater, if it is discharged directly without wastewater treatment, it will not meet the national secondary discharge standard and do not meet the national environmental protection requirements. . Invention content: [0005] The purpose of the present invention is to provide a kind of treatment method of mesitidine waste water that can reach the national secondary discharge standard. [0006] The object of the present invention is achieved like this: a kind of treatment method of mesitidine waste water, it is characterized in that: in mesitidin...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F1/58C02F1/52C02F1/70C02F3/02
CPCY02W10/10
Inventor 冯晓西魏兴义吴俊锋周益张勤岳吴永阳
Owner 江阴市倪家巷化工有限公司
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