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Preparation method of porous inorganic filling materials-fixed quinone compound

A technology of inorganic fillers and quinone compounds, which is applied in the field of preparation of porous inorganic fillers to immobilize quinone compounds, can solve problems such as secondary pollution, loss, and accelerated anaerobic biotransformation of refractory organic matter, achieve good catalytic performance, and solve technical bottlenecks Effect

Inactive Publication Date: 2011-11-16
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The present invention overcomes the deficiencies of the prior art, selects a porous inorganic filler with no biological toxicity, good mass transfer performance, high mechanical strength, and stable properties as the carrier for immobilizing the water-soluble quinone compound, and adopts a chemical method to combine the water-soluble quinone compound The quinone compound is immobilized on the surface of the porous inorganic filler of the biological carrier, which solves the technical problem that it is easily lost with the effluent and causes secondary pollution as a redox mediator, and makes the immobilized quinone compound have better catalytic performance, which can accelerate the degradation of refractory organic matter. anaerobic biotransformation

Method used

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  • Preparation method of porous inorganic filling materials-fixed quinone compound
  • Preparation method of porous inorganic filling materials-fixed quinone compound

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Embodiment 1

[0019] (1) At room temperature, put 5g of inorganic filler into alumina sol, soak for 5 minutes, dry at 80°C for 1h, then put it in a muffle furnace and dry at 700°C for 3.5 hours, cool to room temperature for later use; (2) Put the above-mentioned inorganic filler into a dry flask, add 50mL of toluene solution, then add 5g of 3-aminopropyltriethoxysilane, react under reduced pressure and vacuum rotation for 4h at room temperature, then wash with acetone several times, add 50mmol / L hydrochloric acid, in a water bath at 50°C for 1h, washed with acetone, and air-dried for later use. (3) Put the above-mentioned inorganic filler into a flask, add 2mol / L NaOH solution, slowly add dichloromethane, 0.01mol / L solution of anthraquinone compound containing sulfonyl chloride group as solvent, react at 30°C for 8h, and then Wash with ethanol and water successively, and dry for later use. The anthraquinone compound containing a sulfonyl chloride group is derived from a sulfonated anthraqu...

Embodiment 2

[0021] (1) At room temperature, put 5g of inorganic filler into alumina sol, soak for 5-20 minutes, dry at 80°C for 1h, then put it in a muffle furnace and dry at 700°C for 3.5 hours, and cool to room temperature Standby; (2) Put the above-mentioned inorganic filler into a dry flask, add 50mL of toluene solution, then add 10g of 3-aminopropyltriethoxysilane, react under reduced pressure and vacuum for 6h at room temperature, and then wash with acetone for several times , add 50mmol / L hydrochloric acid, bathe in water at 50°C for 1h, wash with acetone, and air dry for later use. (3) Put the above-mentioned inorganic filler into the flask, add 2mol / L NaOH solution, slowly add the solvent as dichloromethane, 0.02mol / L anthraquinone compound solution containing sulfonyl chloride group, react at 30°C for 10h, and then Wash with ethanol and water successively, and dry for later use. The anthraquinone compound containing a sulfonyl chloride group is derived from a sulfonated anthraq...

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Abstract

The invention discloses a preparation method of a porous inorganic filling materials-fixed quinone compound, belonging to the technical field of water treatment in environmental engineering. The method comprises the following steps of: selecting porous inorganic filling materials such as ceramsites, volcanics and the like; plating gamma-aluminum oxide on the surface of the materials; aminating, so that the surfaces of the porous inorganic filling materials contain a certain quantity of primary amidogen; putting the aminated materials into hydrochloric solution to have reaction for protecting the primary amidogen; and putting the reacted porous inorganic filling materials into sodium hydroxide solution, adding sulfonyl chloride group-containing anthraquinone compound which is dissolved in dichloromethane, and reacting for 6-10h under the room temperature to fix the water-soluble quinone compound. The quinone compound-containing macroporous polymer is applied to an anaerobic reactor to be capable of improving the biotransformation speed of an organic matter which is hardly degraded. The method covalently fixes the quinone compound on the macroporous polymer of a biologic carrier, sothat the redox medium is easily contacted with the microbe, thereby overcoming the problem of the secondary pollution since the water-soluble quinone compound flows out with the water.

Description

technical field [0001] The invention belongs to the technical field of environmental engineering water treatment, and relates to a preparation method for immobilizing quinone compounds with porous inorganic fillers. Background technique [0002] With the rapid development of human society and the continuous improvement of the level of industrialization, a large amount of refractory organic wastewater (such as wastewater containing halogenated, azo and nitroaromatics) has been produced. The biological method has become a commonly used treatment method because of its mild reaction conditions, low cost, and less sludge generated. Studies have shown that halogenated groups, azo groups, and nitro groups have extremely strong electron-withdrawing effects, making it difficult for compounds containing these groups to be degraded directly through oxidation. Anaerobic biological treatment of these refractory organics can improve their subsequent aerobic biodegradability. Therefore, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J31/26C02F3/28C02F101/38C02F101/36
Inventor 吕红袁守志周集体王竞
Owner DALIAN UNIV OF TECH
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