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Electric flocculation and oxidation integrated wastewater treatment device and treatment method

A wastewater treatment and electrocoagulation technology, applied in water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problem of difficult to achieve simultaneous and rapid removal of pollutants, high energy consumption of electrochemical systems, Problems such as high construction and maintenance costs, achieve the effect of simple assembly, low current, and saving construction costs

Pending Publication Date: 2022-03-22
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has dual functions of filtration and degradation at the same time, but the reactor structure is complex and requires repeated cleaning of the conductive membrane
[0004] Although the existing electrochemical technology can achieve efficient removal of antibiotics in antibiotic wastewater, it is difficult to achieve simultaneous and rapid removal of other types of pollutants
The coupling process usually passes the wastewater through the electrochemical reactor and other water treatment process reactors in sequence. Although the pollutants can be effectively removed, there are still high energy consumption of the electrochemical system and the occupied area caused by multi-reactor coupling. Problems such as high maintenance costs of Yamato Construction

Method used

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  • Electric flocculation and oxidation integrated wastewater treatment device and treatment method
  • Electric flocculation and oxidation integrated wastewater treatment device and treatment method
  • Electric flocculation and oxidation integrated wastewater treatment device and treatment method

Examples

Experimental program
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Effect test

Embodiment 1

[0046] Embodiment 1: see figure 1 , an electrocoagulation oxidation integrated wastewater treatment device, including a plexiglass reactor 1, a constant current and voltage stabilized power supply 2, an electro-oxidation anode plate 7, an indirect electro-coagulation cathode plate 8, a magnetic stirrer 3 and a magnet 9.

[0047] The size of the plexiglass reactor 1 is 10cm×8cm×5cm, and the effective volume is 400mL. A water inlet 4 is arranged on the top of its side wall, and a water outlet 5 and a mud discharge port 6 are provided at the bottom of the side wall away from the water inlet, and the mud discharge port 6 is located below the water outlet 5 . Wastewater can enter the plexiglass reactor 1 through the water inlet 4. After electrolytic treatment and precipitation, the treated effluent flows out from the water outlet 5, and the flocculated sludge produced is discharged from the sludge discharge port 6. The top cover of the plexiglass reactor 1 is provided with two slo...

Embodiment 2

[0058] Example 2: In this example, an electrocoagulation and oxidation integrated wastewater treatment device in Example 1 is used to simultaneously remove turbidity and chloramphenicol, and turbidity and sulfamethoxazole. Include the following steps:

[0059] Step 1: Under the action of the water inlet pump, the mixed waste water enters the plexiglass reactor through the water inlet;

[0060] Step 2: Connect the constant current regulated power supply 2 and turn on the magnetic stirrer 3 while entering the water, control the voltage to 10V for electrolysis, the electrolysis time is 60min, and control the stirring speed to 300rpm to make the mass transfer uniform;

[0061] Step 3: Precipitate for 30 minutes after the electrolytic treatment, and then open the water outlet 5 valve, and the treated effluent in the plexiglass reactor 1 will flow out from the water outlet 5; open the mud discharge port 6 valve, and the flocculation produced in the plexiglass reactor 1 The sludge i...

Embodiment 3

[0063] Embodiment 3: adopt as figure 1 The device and the method in Example 2 were used to investigate the removal effects of four electrode combination systems on turbidity, chloramphenicol and sulfamethoxazole.

[0064] The size of the electrode plate is 5cm×6cm×0.2cm, the anode plate can be set to BDD, aluminum plate and stainless steel mesh, the cathode plate can be set to aluminum plate and stainless steel mesh, assembled into BDD-Al, BDD-SS, SS-Al and Al- For the four SS systems, two plates are fixed in parallel inside the reactor through the card slots to control the interval of 1cm. The electrolysis was carried out by controlling the voltage to 10V, controlling the electrolysis time to be 60min, and controlling the stirring speed to be 300rpm. Processing effect such as image 3 As shown, BDD as an anode shows an excellent removal ability for organic matter; when aluminum is used as a cathode, the removal effect on turbidity is obvious, and it also has a certain remov...

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Abstract

The invention discloses an electric flocculation and oxidation integrated wastewater treatment device and treatment method, and relates to the technical field of wastewater treatment. The device comprises a reactor, a power supply, an electro-oxidation anode plate, an indirect electric flocculation cathode plate and a stirrer, the reactor is used for containing wastewater, the electro-oxidation anode plate and the indirect electric flocculation cathode plate are arranged in parallel, and at least one part of the electro-oxidation anode plate and at least one part of the indirect electric flocculation cathode plate are both located in the reactor; the power supply is communicated with the electro-oxidation anode plate and the indirect electric flocculation cathode plate through wires; the stirrer is used for controlling the mass transfer process of wastewater in the reactor. The method is used for removing suspended pollutants and refractory organic pollutants in the wastewater.

Description

technical field [0001] The present application relates to the technical field of wastewater treatment, in particular to an electrocoagulation oxidation integrated wastewater treatment device and treatment method. Background technique [0002] The composition of antibiotic wastewater is complex, and it usually has the characteristics of high concentration of suspended solids, high concentration of organic matter and low biodegradability. In recent years, the treatment technologies for antibiotic wastewater mainly include physical methods (adsorption, air flotation, coagulation, and membrane filtration, etc.), biological methods (aerobic, anaerobic, and microalgae, etc.) and advanced oxidation methods. (ozone oxidation, Fenton oxidation and photocatalytic oxidation, etc.). As a clean water treatment process, electrochemical technology has the characteristics of both physical method and advanced oxidation method. According to the different application methods of the electrode...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/463C02F1/467C02F101/30
CPCC02F1/463C02F1/4672C02F2101/30
Inventor 冯玉杰戴常超刘峻峰陈大宏时爽吕淼张杰
Owner HARBIN INST OF TECH
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