Anode electrode material, preparation method thereof, application and working method of anode electrode material in treating wastewater containing phenol by electrochemical oxidation

A technology of anode electrode and phenol wastewater, which is applied in the field of environmental pollution control to achieve the effects of simple removal device, effective treatment and simple process control

Inactive Publication Date: 2012-06-27
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an anode electrode material capable of effectively oxidizing phenols in wastewater and its application in electrochemical oxidation treatment of phenolic wastewater , to overcome the defects of secondary pollution and phenolic re-generation existing in the current technology

Method used

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  • Anode electrode material, preparation method thereof, application and working method of anode electrode material in treating wastewater containing phenol by electrochemical oxidation
  • Anode electrode material, preparation method thereof, application and working method of anode electrode material in treating wastewater containing phenol by electrochemical oxidation
  • Anode electrode material, preparation method thereof, application and working method of anode electrode material in treating wastewater containing phenol by electrochemical oxidation

Examples

Experimental program
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Effect test

Embodiment 1

[0042] 1) Grinding the titanium plate to make the surface of the titanium plate present a uniform light gray luster;

[0043] 2) Alkaline washing the polished titanium plate to remove the pollutants on the surface of the titanium plate;

[0044] 3) The titanium plate after alkali washing is pickled to remove TiO on the surface of the titanium plate 2 ;

[0045] 4) Use the titanium plate treated in step 3) as the anode, Pt as the cathode, and use 0.5 wt%NaF, 1 wt%Na 2 SO 4 , 5 wt% polyethylene glycol and ultrapure water were prepared as an electrolyte solution, etched at a constant voltage of 15 V for 1 hour, and then calcined in a muffle furnace at 500 ° C for 1.5 hours;

[0046] 5) Use Pt as the anode, and the titanium plate treated in step 4) as the cathode, 0.5mol / L (NH 4 ) 2 SO 4 Electrolyte, energized at a constant voltage of 1.5 V for 0.1 minute;

[0047] 6) Put the titanium plate treated in step 5) in 1 mol / L CuSO 4 The solution was treated with the pulse curren...

Embodiment 2

[0052] 1) Grinding the titanium plate to make the surface of the titanium plate present a uniform light gray luster;

[0053] 2) Alkaline washing the polished titanium plate to remove the pollutants on the surface of the titanium plate;

[0054] 3) The titanium plate after alkali washing is pickled to remove TiO on the surface of the titanium plate 2 ;

[0055] 4) Use the titanium plate treated in step 3) as the anode, Pt as the cathode, and use 2 wt%NaF, 5 wt%Na 2 SO20 wt% polyethylene glycol and ultrapure water were prepared as an electrolyte, etched at a constant voltage of 25 V for 3 hours, and then calcined in a muffle furnace at 550 °C for 3 hours;

[0056] 5) With Pt as the anode, the titanium plate treated in step 4) as the cathode, 1.5 mol / L (NH 4 ) 2 SO 4 Electrolyte, energized at a constant voltage of 2 V for 10 minutes;

[0057] 6) Put the titanium plate treated in step 5) in 2 mol / L CuSO 4 The solution was treated by pulse current method at 45 ℃ for 30 minu...

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Abstract

The invention discloses an anode electrode material, a preparation method thereof, the application and a working method of the anode electrode material in treating wastewater containing phenol by electrochemical oxidation; and an electrode is prepared from grinding, alkali washing, acid washing, electrolysing and calcinating a titanium plate. When the wastewater containing the phenol is treated, under a constant current condition, the phenol in the water is removed by controlling the amount of added Cl-, current density, electrification time and other factors. An analysis result shows that: the electrode material can effectively remove the phenol simulated wastewater in quite a large concentration scope under a low energy consumption condition. The electrode material used in the method has long service life, can make the wastewater containing the phenol reach regulated emission requirements in a shorter time, chemical substances which produce negative impact on the environment are not introduced during the process, no secondary pollution is produced, and the anode electrode material has the advantages of low energy consumption, mild reaction conditions, convenience in operation, reliability in operation and the like.

Description

[0001] technical field [0002] The invention relates to a material capable of removing phenols in waste water, in particular to an anode electrode material and its application in electrochemical oxidation treatment of phenol-containing waste water, belonging to the field of environmental pollution control. [0003] Background technique [0004] As important organic chemical raw materials and solvents, phenols widely exist in industrial wastewater. Phenols can invade the human body through inhalation, ingestion, skin contact, etc., corrode the skin or mucous membranes, inhibit the central nervous system, and damage the liver, kidney, lung and other organs. If an adult ingests 1 g of phenol, it will be fatal. Because such substances are biologically toxic, not only cannot they be effectively removed by traditional biochemical methods, but they may also cause paralysis of the biochemical system. In view of its widespread existence and biotoxicity, phenols have long been one ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F101/34
Inventor 李琴安浩张秋崔皓钱言李保菊翟建平
Owner NANJING UNIV
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