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Equipment and treatment method for treating dye wastewater by electrochemical-adsorption process

The technology of dye wastewater and composite process is applied in the equipment and treatment field of electrochemical-adsorption composite process to treat dye wastewater.

Active Publication Date: 2017-09-08
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Technical problem to be solved: This application mainly proposes an electrochemical-adsorption composite process for treating dye wastewater and a treatment method to solve the problem that carbon nitride is a powder material in the prior art, which needs to be stirred during use, and after use Difficult to recycle and other technical issues

Method used

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  • Equipment and treatment method for treating dye wastewater by electrochemical-adsorption process

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Such as figure 1 As shown, an electrochemical-adsorption composite process is used to treat dye wastewater, which consists of a DC stabilized power supply 1, a graphite plate cathode 2 loaded with metal copper and palladium, a ruthenium tin-coated titanium anode 3, a magnetic stirrer 4, and a wastewater storage tank 5. Magnetic stirrer 6, peristaltic pump 7, overflow port 8, water outlet valve 9-1, water inlet valve 9-2 and powdered activated carbon 10, the graphite plate cathode 2 loaded with metal copper palladium is made of ethylene glycol Prepared by the reduction method, take the graphite plate electrode, sand the surface smooth and flat, soak it in NaOH solution and hydrochloric acid solution in turn, rinse and dry to prepare the prepared graphite plate electrode, put the prepared prepared graphite plate electrode in ethylene glycol solution, ultrasonic 1h; weigh 76mg of PdCl 2 , 72mg of CuCl 2 . 2H 2The sodium citrate of 0 and 240mg is in the 250mL round-bott...

Embodiment 2

[0039] Such as figure 1 As shown, an electrochemical-adsorption composite process is used to treat dye wastewater, which consists of a DC stabilized power supply 1, a graphite plate cathode 2 loaded with metal copper and palladium, a ruthenium tin-coated titanium anode 3, a magnetic stirrer 4, and a wastewater storage tank 5. Magnetic stirrer 6, peristaltic pump 7, overflow port 8, water outlet valve 9-1, water inlet valve 9-2 and powdered activated carbon 10, the pool of the equipment for treating dye wastewater by the electrochemical-adsorption composite process The body is a cuboid with a size of 15cm*10cm*12cm. The graphite plate cathode 2 loaded with metal copper palladium and the ruthenium-tin-coated titanium anode 3 are respectively arranged at both ends of the pool body of the equipment for treating dye wastewater by electrochemical-adsorption composite process , the graphite plate cathode 2 loaded with metal copper and palladium is prepared by the ethylene glycol redu...

Embodiment 3

[0046] Such as figure 1 As shown, an electrochemical-adsorption composite process is used to treat dye wastewater, which consists of a DC stabilized power supply 1, a graphite plate cathode 2 loaded with metal copper, a ruthenium tin-coated titanium anode 3, a magnetic stirrer 4, and a wastewater storage tank 5 , a magnetic stirrer 6, a peristaltic pump 7, an overflow port 8, a water outlet valve 9-1, a water inlet valve 9-2 and powdered activated carbon 10, the pool body of the equipment for treating dye wastewater by the electrochemical-adsorption composite process It is a cuboid with a size of 15cm*10cm*12cm. The graphite plate cathode 2 and the ruthenium-tin-coated titanium anode 3 loaded with metal copper and palladium are respectively arranged at both ends of the pool body of the equipment for treating dye wastewater by electrochemical-adsorption composite process. The graphite plate cathode 2 loaded with metal copper and palladium is obtained by the ethylene glycol redu...

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Abstract

The invention provides equipment and a treatment method for treating dye wastewater by an electrochemical-adsorption process. Main electrode plates of a reactor include a metal copper palladium-loaded graphite plate cathode and a ruthenium titanium tin coated titanium anode, and a space between the main electrode plates is filled with anhydrous NaCl and powdered active carbon. The equipment is high in current conductivity and easy to operate, and can efficiently remove COD from dye wastewater and decolorize the dye wastewater; by the treatment method, the chroma of the dye wastewater can be effectively reduced; and the treatment method is applied to treatment to the dye wastewater with medium and low concentrations.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to equipment and a treatment method for treating dye wastewater by an electrochemical-adsorption composite process. Background technique [0002] With the rapid development of my country's dye production and printing and dyeing industry, the discharge of dye industry wastewater has also increased sharply. According to the data provided by relevant departments, about 1.8 million cubic meters of dye wastewater is discharged into the environment every year in my country. Dye wastewater has high organic content, large chroma, complex components, and a wide range of pH changes. Due to the variety of dyes produced and the development towards anti-photolysis, anti-oxidation, and anti-biological oxidation, the treatment of dye wastewater has become more difficult. Dye wastewater contains a large amount of organic pollutants, which will consume dissolved oxygen in the...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F1/469C02F1/76C02F101/30
CPCC02F1/46104C02F1/46109C02F1/4674C02F1/469C02F2001/46133C02F2001/46138C02F2101/308C02F2201/4617
Inventor 吴云海陶小明张冰
Owner HOHAI UNIV
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