Adsorption-catalytic oxidation degradation method of phenol in a kind of waste water
A technology of phenol and wastewater, applied in the field of water treatment, can solve the problems of desorption and regeneration, achieve no secondary pollution, solve high energy consumption, and achieve good results
Active Publication Date: 2015-08-19
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
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[0020] 1. Activated carbon fiber loaded with ferroferric oxide (Fe 3 o 4 / ACF) preparation:
[0021] 1. Activated carbon fiber (ACF): Viscose-based activated carbon fiber felt sold on the market (specific surface area greater than 1100m 2 / g). Its scanning electron microscope picture is shown in figure 1 .
[0022] 2. Fe 3 o 4 Preparation of:
[0023] Take 6.0 g FeCl respectively 3 ·6H 2 O, 3.0 g of polyvinylpyrrolidone (PVP) and 6.0 g of anhydrous NaAc, then add 120 mL of ethylene glycol and stir at room temperature for 2.0 h to ensure that all solid matter is dissolved in ethylene glycol. The above mixed solution was transferred to a stainless steel reaction kettle lined with polytetrafluoroethylene, and the above mixture was reacted at 200°C for 6.0h. After the reaction, it was naturally cooled to room temperature, washed several times with distilled water, and dried under vacuum at 60 °C for 24 h.
[0024] Prepared Fe 3 o 4 The scanning electron microscope pic...
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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 in particular relates to the adsorption and catalytic oxidation treatment technology of phenol-containing wastewater. Background technique [0002] Phenol-containing wastewater is widely sourced from petrochemical, synthetic fiber, pharmaceutical and other industries. It is a type of organic wastewater with high toxicity and is difficult to biodegrade. The traditional biochemical method has the disadvantages of long treatment time and low treatment efficiency, which is difficult to meet the production needs of enterprises. . In the treatment methods of phenol-containing wastewater, a large number of treatment methods such as adsorption and heterogeneous catalytic oxidation have been reported. Adsorption method is to use the porous nature of the adsorbent to absorb pollutants in wastewater. As a traditional wastewater treatment technology, it can effectively remove various pollutants ...
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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