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A kind of aniline sewage decolorization treatment agent and its preparation method and use method

A treatment agent and decolorizing agent technology, applied in water/sewage treatment, adsorption water/sewage treatment, reduced water/sewage treatment, etc., can solve the problems of severe corrosion of high-pressure reactors, poor water solubility and toxicity of ozone, and limited industrial applications. Achieve the effects of reducing aniline content, facilitating management, and reducing processing costs

Inactive Publication Date: 2017-05-24
兰州陇源石化有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ozone oxidation method has a fast reaction rate and a high removal rate, but it consumes a lot of electricity, and the treatment cost is high. Ozone has poor water solubility and is itself toxic, which is easy to cause harm to operators.
Although supercritical water oxidation technology can quickly and efficiently remove toxic and harmful organic substances in water, the high-pressure reactor corrodes severely during the use of this method, which limits its industrial application.

Method used

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  • A kind of aniline sewage decolorization treatment agent and its preparation method and use method
  • A kind of aniline sewage decolorization treatment agent and its preparation method and use method
  • A kind of aniline sewage decolorization treatment agent and its preparation method and use method

Examples

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Effect test

preparation Embodiment 1

[0023] Reductant preparation example 1: According to the data in formula 1 in Table 1, add 67 grams of water to the reaction kettle, add 5 grams of aluminum potassium sulfate while stirring, slowly heat up to 45 ° C and stir for at least 30 minutes; Slowly add 10 grams of magnesium sulfate and 18 grams of polyaluminum chloride while stirring; heat the above solution to 45°C, stir for at least 1.5 hours and then cool to room temperature. The finished product is a pale yellow liquid with a pH value of 4.7.

preparation Embodiment 2

[0024] Reductant preparation example 2: According to the data in formula 2 in Table 1, add 73 grams of water to the reaction kettle, add 6 grams of aluminum potassium sulfate while stirring, slowly heat up to 45 ° C and stir for at least 30 minutes; Slowly add 8 grams of magnesium sulfate and 13 grams of polyaluminum chloride while stirring; heat the above solution to 60°C, stir for at least 1.5 hours and then cool to room temperature. The finished product is a light yellow liquid with a pH value of 4.6.

preparation Embodiment 3

[0025] Reductant preparation example 3: According to the data in formula 3 in Table 1, add 72 grams of water to the reaction kettle, add 7 grams of aluminum potassium sulfate while stirring, slowly heat up to 45 ° C and stir for at least 30 minutes; Slowly add 8 grams of magnesium sulfate and 13 grams of polyaluminum chloride while stirring; heat the above solution to 50°C, stir for at least 1.5 hours and then cool to room temperature. The finished product is a light yellow liquid with a pH value of 4.6.

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Abstract

The invention discloses an aniline sewage decolorization treatment agent, and a preparation method and application method thereof. The aniline sewage decolorization treatment agent comprises a reducer, a decolorant and a synergist in a weight ratio of 1:(0.67-1.5):(0.67-1.5). The reducer is composed of the following components in percentage by weight: 5-10% of aluminum potassium sulfate, 5-10% of magnesium sulfate, 13-18% of polyaluminum chloride and 67-73% of water. The decolorant is composed of the following components in percentage by weight: 5-10% of epoxyethane, 5-10% of triethanolamine, 20-25% of powder activated carbon and 60-65% of water. The synergist is composed of the following components in percentage by weight: 0.1-0.2% of polyacrylamide, 5-10% of aluminum amine sulfate and 89.9-94.8% of water. By matching the components of the reducer, decolorant and synergist, the aniline sewage treatment agent has unique removal effects on high chroma, aniline and COD (chemical oxygen demand) in aniline sewage; and the chroma, COD, suspended substance and aniline contents in the treated wastewater are obviously and greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to an aniline sewage decolorization treatment agent, a preparation method and a use method thereof. Background technique [0002] Aniline wastewater is alkaline wastewater with high chroma and high organic content produced by the petrochemical industry. The water quality is poor in biodegradability and high in chroma. It is a typical chemical organic wastewater that is difficult to biodegrade. If this kind of sewage is directly discharged, it will seriously pollute the water source, and if it is directly discharged to the sewage treatment plant, it will seriously affect the discharge rate of the sewage. [0003] At present, the treatment methods of aniline sewage mainly include biological treatment technology, adsorption decolorization technology, sodium hypochlorite oxidation technology, advanced oxidation technology, etc., but these methods have their limitati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/70C02F1/58C02F1/52C02F1/56C02F1/28C02F9/04C02F101/38C02F103/36
Inventor 管位昶
Owner 兰州陇源石化有限责任公司
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