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Adsorption-catalytic oxidation degrading method for phenol in waste water

A technology for phenol and wastewater, applied in the field of water treatment, can solve problems such as desorption and regeneration, and achieve the effects of no secondary pollution, good effect, and high energy consumption.

Active Publication Date: 2014-08-13
扬州石化有限责任公司
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Problems solved by technology

[0004] In order to solve the problem of desorption and regeneration after activated carbon fiber adsorbs phenol, the purpose of this invention is to propose a method for degrading phenol in wastewater by adsorption-catalytic oxidation technology

Method used

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  • Adsorption-catalytic oxidation degrading method for phenol in waste water
  • Adsorption-catalytic oxidation degrading method for phenol in waste water
  • Adsorption-catalytic oxidation degrading method for phenol in waste water

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Experimental program
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Effect test

Embodiment Construction

[0020] 1. Activated carbon fiber loaded with Fe3O4 (Fe 3 O 4 / ACF) Preparation:

[0021] 1. Activated carbon fiber (ACF): using viscose-based activated carbon fiber felt sold on the market (specific surface area greater than 1100m 2 / g). See the scanning electron microscope picture figure 1 .

[0022] 2. Fe 3 O 4 Preparation:

[0023] Take 6.0 g FeCl respectively 3 ·6H 2 O, 3.0 g polyvinylpyrrolidone (PVP) and 6.0 g anhydrous NaAc, add 120 mL ethylene glycol, and stir for 2.0 h at room temperature to ensure that all solid materials are dissolved in ethylene glycol. The above mixture was transferred to a stainless steel reactor lined with polytetrafluoroethylene, and the above mixture was reacted at 200°C for 6.0 hours. After the reaction, it was cooled to room temperature naturally, washed with distilled water several times, and dried under vacuum at 60°C for 24 h.

[0024] Fe prepared 3 O 4 See the SEM picture figure 2 .

[0025] 3. Fe 3 O 4 / ACF preparation:

[0026] Other conditio...

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Abstract

The invention relates to an adsorption-catalytic oxidation degrading method for phenol in waste water, and belongs to the technical field of water treatment. The method is characterized in that active carbon fibers which are loaded with ferroferric oxide are used as an adsorption agent and filled in an adsorption tower so as to adsorb the waste water containing phenol; hydrogen peroxide aqueous solution is added into the adsorption tower, air is also blown into the adsorption tower, and the mixed system is oxidized for 1h to 3h, so that the adsorption agent is regenerated, and then the waste water containing phenol is inputted to be circularly adsorbed. By adopting the method, the desorption regeneration problem of the active carbon fibers after adsorbing phenol, the degradation problem of the desorbed phenol and the high energy consumption problem of the catalytic wet-type hydrogen peroxide oxidation technology in treating the waste water containing a great amount of phenol can be solved. The method has the advantages of simple process, easiness in operation, no secondary pollution on the environment and the like.

Description

Technical field [0001] The invention belongs to the technical field of water treatment, and specifically relates to the adsorption and catalytic oxidation treatment technology of phenol-containing wastewater. Background technique [0002] Phenol-containing wastewater is widely derived from petrochemical, synthetic fiber, pharmaceutical and other industries. It is a kind of organic wastewater with high toxicity and difficult to be biodegraded. Traditional biochemical methods have disadvantages such as long treatment time and low treatment efficiency, which are difficult to meet the production needs of enterprises. . Among the treatment methods of phenol-containing wastewater, treatment methods such as adsorption and heterogeneous catalytic oxidation have been reported in large numbers. The adsorption method uses the porous nature of adsorbents to adsorb pollutants in wastewater. As a traditional wastewater treatment technology, it can effectively remove multiple pollutants in was...

Claims

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Application Information

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IPC IPC(8): C02F1/28B01J20/34B01J20/20C02F101/34
Inventor 姚日远史正清孔黎明王佩德李红
Owner 扬州石化有限责任公司
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