Treatment device and treatment method for sewage

A sewage treatment device and sewage technology, applied in water/sewage treatment, water/sewage treatment equipment, water/sludge/sewage treatment, etc., can solve the problems of ineffective control and treatment, incomplete removal of emerging pollutants, water Solve problems such as numerous technical steps, achieve the effects of excellent cycle treatment efficiency, small footprint, and simple device structure

Active Publication Date: 2019-08-23
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Traditional sewage treatment equipment is generally set up according to functions. There are many types of equipment and a large area. Different units require different personnel and maintenance methods, resulting in difficult overall control, decentralized management and large capital consumption. Water treatment Technology continues to develop along the direction of science, green and energy saving
[0003] The existing water treatment technology has many steps and a long treatment cycle; the removal of by-products by a single ozone process often causes secondary pollution; the biological sludge aeration method has high requirements on the site, odor, odor, ammonia and other irritating odors, which cannot be effectively obtained. Control and treatment; material costs such as electrodialysis and reverse osmosis are high, and maintenance costs are high in the later period; existing technologies are not thorough in removing emerging pollutants

Method used

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  • Treatment device and treatment method for sewage
  • Treatment device and treatment method for sewage
  • Treatment device and treatment method for sewage

Examples

Experimental program
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Effect test

preparation example Construction

[0058] 1) Preparation of Mxene material: immerse the MAX phase material in HF aqueous solution, dry, wash and centrifuge, remove surface residue impurities, and dry until reaching a constant quality to obtain the Mxene material;

[0059] 2) Ferrite-modified MXene material: add the MXene material obtained in step 1) to the ferrite, ultrasonicate, filter and wash until neutral; then roast, and cool to obtain the ferrite-modified MXene material for use;

[0060] 3) Preparation of layered gas diffusion electrode: after ultrasonication of the ferrite-modified MXene material obtained in step 2), a mixture of a promoter, a pore-forming agent, a binder and anhydrous ethanol, stir in a constant temperature water bath until the mixture becomes a paste shape, take out the paste gel, put it on the axial press and press it repeatedly to form a sheet, wrap the sheet material on the nickel foam and continue the axial pressing until it does not contain water, and then roll it with a roller mac...

Embodiment 1

[0096] Electrochemical Cathode Example 1: Layered Gas Diffusion Electrode of Ferrite Modified Mxene

[0097] 1) Preparation of MXene material: Weigh 3.0g Ti 3 AlC 2 Materials and Measure 150mL of hydrofluoric acid solution into a round-bottomed flask. After 1h of ultrasonic treatment, react in a constant temperature reactor at 40°C for 72h. After the solution is cooled, wash with ultrapure water and centrifuge several times. Remove surface residue impurities until the pH of the washing liquid is not lower than 6, and then fully dry in a vacuum oven at 60°C until a constant quality is obtained to obtain MXene materials.

[0098] 2) Ferrite modified MXene material: Accurately weigh 808mg Fe(NO 3 )3 9H 2 O solid and 125.84 mg MnCl 2 solid, adding Fe(NO 3 ) 3 9H 2 O solid and MnCl 2 Solid, stirred with a magnetic stirrer to make it evenly mixed and completely dissolved to obtain a mixed solution, in which Fe(NO 3 ) 3 0.02mol / L, MnCl 2 0.01mol / L, add 5mL of polyethylene ...

Embodiment 2

[0100] Electrochemical Cathode Example 2: Ferrite Modified Carbon Fiber Cloth Electrochemical Cathode

[0101] 1) Cut the original carbon fiber cloth into a circle with a diameter of 10 em, and soak the carbon cloth with a mixture of 10% nitric acid by mass fraction and 10% sulfuric acid solution by mass fraction (nitric acid: sulfuric acid volume ratio is 3:1) , after 30 minutes of ultrasonic treatment, react in a constant temperature reactor at 50°C for 24 hours. After the solution is cooled, wash it with ultrapure water several times to remove surface residue impurities until the pH of the washing solution is neutral, and then in 50°C Fully dry in a vacuum oven until a constant quality is obtained to obtain a modified carbon fiber cloth;

[0102] 2) Add 0.8mol / L Fe(NO 3 ) 3 9H 2 O and 0.4mol / L Cu(NO 3 ) 2 ·3H 2 O, sonicate for 1 hour to mix evenly and dissolve completely to obtain a mixed solution, add ammonium fluoride and urea to it and continue stirring, then add m...

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Abstract

The invention provides a treatment device and treatment method for sewage. The treatment device comprises a treatment tank body, a power and electric control unit, a gas supply and tail-gas recovery unit and a circulation reaction treatment unit; the treatment tank body is provided with a liquid inlet and a liquid discharge outlet, a gas inlet and a tail-gas discharge outlet; the gas supply and tail-gas recovery unit communicates with the treatment tank body through the gas inlet; the tail-gas discharge outlet communicates with the gas supply and tail-gas recovery unit; the circulation reaction treatment unit comprises external circulation equipment and a reaction treatment component; the reaction treatment component is arranged in the treatment tank body; the external circulation equipment is arranged outside the treatment tank body and respectively communicates with the liquid inlet and the liquid discharge outlet; the power and electronic control unit is connected with the reactiontreatment component; and the sewage to be treated enters the interior of the treatment tank body through the liquid inlet and reacts with the reaction treatment component. The treatment device provided by the invention has the advantages of a simple structure, a rich source of electrode materials, high-efficiency purification of sewage in different places and lower running costs, and the treated water has high quality.

Description

technical field [0001] The invention belongs to the field of advanced treatment of sewage, and relates to a sewage treatment device and a treatment method, in particular to a sewage treatment device for electrocatalyzing ozone and ferrate with a modified electrochemical cathode under a self-circulation system and the application of the sewage treatment device to life. Methods for treating sewage and / or laboratory organic wastewater. Background technique [0002] Traditional sewage treatment equipment is generally set up according to functions. There are many types of equipment and a large area. Different units require different personnel and maintenance methods, resulting in difficult overall control, scattered management and large capital consumption. Water treatment Technology continues to develop along the direction of science, green and energy saving. [0003] The existing water treatment technology has many steps and a long treatment cycle; the removal of by-products b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/467C02F1/461C02F101/30
CPCC02F1/4672C02F1/46109C02F2001/46138C02F2001/46152C02F2101/30C02F2201/46165C02F2201/4618C02F2201/4619
Inventor 李海普姚晶晶董晴晴杨兆光袁娜迪代喜梅屠焓钰
Owner CENT SOUTH UNIV
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