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Method for treating hardly degradable organic water using electrochemical turntable

An organic wastewater and electrochemical technology, applied in the field of environmental technology and electrochemistry, can solve the problems of slow mass transfer of flat plate electrodes, increase of dissolved oxygen in liquid film, etc., achieve both oxidation efficiency and catalytic effect, make full use of space, and speed up exchange and renewal Effect

Inactive Publication Date: 2005-03-16
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to achieve such a purpose, the present invention adopts an electrochemical turntable to treat refractory organic wastewater, uses alternately distributed cathodes and anodes on the turntable to solve the problem of slow mass transfer of the flat electrode, and uses the rotation of the turntable to speed up the exchange and renewal of the electrode surface and the main solution substance , and increases the dissolved oxygen in the liquid film

Method used

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  • Method for treating hardly degradable organic water using electrochemical turntable

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specific Embodiment approach

[0011] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0012] figure 1 It is a schematic diagram of the structure of the electrochemical turntable used in the method of the present invention. This is only a schematic illustration of a single turntable, and multiple turntables can be connected in parallel in an actual device.

[0013] Such as figure 1 As shown, on an electrochemical turntable 2, anodes and cathodes are evenly and alternately arranged at different intervals, the anodes and cathodes are respectively connected by wires, and then connected to the two poles of the DC power supply 1 through carbon brushes 3 respectively. The lower part of the electrochemical turntable 2 is immersed in the solution in the electrolytic cell 4, and the upper part is exposed to the air. The motor is used to drive the turntable to rotate, and the rotation of the turntable accelerates the e...

Embodiment 1-3

[0015] Embodiment 1-3: the influence of different rotating speeds on chroma removal rate

[0016] time (minutes)

[0017] When the rotation speed is 0 rpm, it is equivalent to the traditional electrolysis method of inserting fixed electrodes. The electrolysis effect is not as good as that of rotation, and the electrolysis effect increases with the acceleration of rotation speed.

Embodiment 4-6

[0018] Embodiment 4-6: the influence of different cathode materials on chroma removal rate

[0019] time (minutes)

[0020] Copper, iron, and titanium-based oxides all work well as cathode materials. In contrast, iron is easy to rust, and the production cost of titanium-based oxides is high, so it is more appropriate to choose copper as the cathode.

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Abstract

The invention discloses a method for treating undegradable organic water using electrochemical turntable, wherein anodes and cathodes are uniformly and alternatively arranged on a electrochemical turntable, the anodes and cathodes are connected with wires, then they are connected with the two poles of the DC source through carbon brushes for electrolysis. The lower portion of the electrochemical turntable is immersed in the solution of the electrolyzation tank, the upper portion is exposed in the air, and a motor drives the turntable rotate so as to quicken the exchange between the electrode surface and main body solution substances.

Description

technical field [0001] The invention relates to a method for treating refractory organic waste water by using an electrochemical turntable. The turntable, which is alternately arranged with anodes and cathodes and half submerged in solution, is used to electrolyze the organic waste water. It belongs to the field of environmental technology and electrochemistry. Background technique [0002] With the development of industrial production, the types and discharge of industrial wastewater are increasing day by day, with more complex components, and often contain toxic and harmful chemical pollutants that are difficult to biodegrade, causing great harm to humans and the environment. Therefore, the treatment of refractory organic pollutants has become a hot spot in environmental science research all over the world. Therefore, at the same time as the research on biological treatment, a series of so-called advanced oxidation technologies for refractory biodegradation have also been...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461
Inventor 贾金平钟登杰王亚林杨骥潘海东
Owner SHANGHAI JIAO TONG UNIV
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