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Electrode for electric flocculation-fiber filtration water treatment device, electric flocculation-fiber filtration water treatment device and use method of electric flocculation-fiber filtration water treatment device

A water treatment device and fiber filtration technology, which is applied in the field of electrodes, can solve problems such as shedding, poor process economy, and high technical cost, and achieve the effects of preventing permanent blockage, strong anti-pollution ability, and good regeneration effect

Pending Publication Date: 2022-04-12
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the preparation process of the conductive film is complicated, and the swelling coefficients of the conductive layer and the film are inconsistent, and long-term use is easy to cause it to fall off.
This leads to high overall technical cost and poor process economy, and is not suitable for long-term and large-scale wastewater treatment processes.

Method used

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  • Electrode for electric flocculation-fiber filtration water treatment device, electric flocculation-fiber filtration water treatment device and use method of electric flocculation-fiber filtration water treatment device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, it is an electrocoagulation-fiber filtration water treatment device, including a reaction tank body 1, a water inlet 2 is provided at the bottom of one side of the reaction tank body 1, and a pool is provided at the top of the reaction tank body 1 opposite to the water inlet 2. body water outlet 3, the inside of the reaction pool body 1 is provided with an anode and a cathode, the anode includes a first anode plate 4 and a second anode plate 5, and the cathode is composed of a central filter body 6 and a carbon fiber filament 7 wound around the central filter body 6 Conductive carbon fiber filter cathode, wherein, the first anode plate 4 and the second anode plate 5 are located at the upstream of the water flow, and can be connected to the positive pole of the DC power supply 10 through the anode wire 8, and the carbon fiber filter cathode is located at the downstream of the water flow, and can pass through the cathode wire 9 is connected to t...

Embodiment 2

[0043] The electrocoagulation-fiber filtration water treatment device of Example 1 is used to process the acid orange 7 simulated dye wastewater, and the concentration of the pollutant acid orange 7 to be treated is 20 mg / L:

[0044] Control the reaction parameters: adjust the initial pH of the wastewater to 6-8, and the current density to 90A / m 2 , control the flocculation reaction time to 30min;

[0045] Treatment process: After adjusting the pH of the waste water, pass it into the reaction tank body 1, turn on the stirring device 11, then start the DC power supply 10, set the system voltage or current according to the requirements, and after a period of flocculation reaction, use the peristaltic pump to extract the waste water at a constant speed The fiber filter cathode is used for filtration and the effluent is collected.

[0046] Treatment results: Several experiments were carried out. After testing, the average removal rate of acid orange 7 was above 95%, and the maxim...

Embodiment 3

[0048] The electrocoagulation-fiber filtration water treatment device of Embodiment 1 is used to process the methylene blue simulated dye wastewater, and the methylene blue concentration of the pollutant to be treated is 20mg / L;

[0049] Control the reaction parameters: adjust the initial pH of the wastewater to 9, and the current density to 110A / m 2 , control the flocculation reaction time to 30min;

[0050] Process: same as in Example 2;

[0051] Treatment results: With the progress of the electrocoagulation process, the wastewater in the reaction tank body 1 changes from blue to dark green, reddish brown, and dark brown in turn. The lower anode 4 produces flocs, and the cathode has bubbles escaping. After filtration The color of the effluent is close to transparent; after testing, the removal rate of methylene blue in the effluent reaches 96.70%.

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Abstract

The invention relates to the technical field of water or sewage, in particular to an electrode for an electric flocculation-fiber filtration water treatment device, the electric flocculation-fiber filtration water treatment device and a use method of the electric flocculation-fiber filtration water treatment device, the electric flocculation-fiber filtration water treatment device comprises an anode and a cathode, the anode is electrically connected with a power source positive electrode, the cathode is electrically connected with a power source negative electrode, and the cathode is a conductive carbon fiber filter cathode. Comprising a central filter body and carbon fiber filaments wound on the central filter body, the central filter body is hollow and is provided with a water outlet, at least one groove is formed in the surface of the central filter body, a plurality of through holes are formed in the groove area, the through holes and the water outlet are communicated with a hollow inner cavity of the central filter body, and the central filter body is provided with a water inlet and a water outlet. And the carbon fiber yarns are wound in the grooves through constant force to form a filter layer. According to the invention, the cathode uses cheap carbon fiber yarns to realize the filtering performance equivalent to that of a conventional membrane assembly, and in addition, gas generated by the cathode is utilized to synchronously remove flocs accumulated on the surface of the fiber filter, so that the filter can stably run for a long time.

Description

technical field [0001] The invention relates to the technical field of water or sewage, and specifically relates to an electrode for an electrocoagulation-fiber filtration water treatment device, an electrocoagulation-fiber filtration water treatment device and a method for using the same. Background technique [0002] The principle of electrocoagulation technology is: under the action of external current, flocculants are generated by electrolytic oxidation of sacrificial metal anodes, so that pollutants are agglomerated and settled to achieve the purpose of removal. Electrocoagulation technology is a new type of water treatment technology that integrates electrochemical, flocculation and air flotation processes. It has many advantages such as no need to add chemicals, less sludge generation, and easy automation control. Therefore, in recent years, electrocoagulation technology has been widely used in the purification and treatment of various water bodies as an environmental...

Claims

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Application Information

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IPC IPC(8): C02F9/06C02F101/30
Inventor 王旭李逸黄宇樊苑柔
Owner WUHAN UNIV
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