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Dyeing wastewater treatment device and method for treating wastewater by using device

A printing and dyeing wastewater and treatment device technology, applied in the field of water treatment, can solve problems such as unsatisfactory results, high treatment costs, secondary pollution, etc., and achieve the effects of avoiding high costs, realizing decolorization and toxicity reduction, and avoiding waste

Inactive Publication Date: 2016-09-21
ANHUI NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the physical and chemical method is effective but the treatment cost is very expensive. At the same time, the large amount of chemical agents used will cause secondary pollution. On the other hand, the traditional biological method has a long cycle and low decolorization rate in the treatment of printing and dyeing wastewater. unsatisfactory effect

Method used

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  • Dyeing wastewater treatment device and method for treating wastewater by using device
  • Dyeing wastewater treatment device and method for treating wastewater by using device
  • Dyeing wastewater treatment device and method for treating wastewater by using device

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specific Embodiment approach

[0025] Figure 1 shows the specific implementation of this invention: a printed and dyeing wastewater treatment device, including the sink, anode chamber, and the cathode chamber.The cation exchange membrane is separated, and the top and bottom of the anode and cathode chamber are equipped with anode outlet, cathode room outlet, anode room water inlet, and cathode inlet, anode room outlet, cathode room water outlet, anode room room, anode room roomThere are silicone tubes at the water inlet of the water inlet and the cathode room. The anode and the cathode indoor are equipped with carbon brushing anode and carbon brushing cathode, carbon brushing anode and carbon brushing cathode.The top of the anode chamber is a sealing cover, with electrode pores in the middle of the sealing cover, and titanium wire through the electrode pores.

[0026] Below the sink corresponds to the anode and cathode chamber with a magnetic mixer. The position of the corresponding magnetic mixer in the anode ...

specific Embodiment approach 1

[0038] Specific implementation plan 1: By regulating the hydraulic residence time of the dye wastewater is 24 hours, pH is between 7, the COD concentration of water inlet is 800mg / L, and the external voltage is 0.3V, and the temperature of the reactor is 25 ° C. The system reaches a stable state. The dye dyesWastewater can achieve better discoloration and treatment effects in the cathode room.

[0039] The programmable DC power supply can provide voltage between 1.2V; the cathode and anode room control the temperature through the temperature control heating rod in the sink, and the temperature of the reactor is controlled at 25 ° C.The removal efficiency of the Congo Red reached 98.8 %.

specific Embodiment approach 2

[0040] Specific implementation plan 2: By regulating the hydraulic residence time of dye wastewater is 24 hours, pH is between 7.2, the COD concentration of water inlet is 580mg / L, and the external voltage is 0.3V, and the temperature of the reactor is 27 ℃.Wastewater can achieve better discoloration and treatment effects in the cathode room.

[0041]The programmable DC power supply can provide a voltage between 0.8V; the cathode and anode room control the temperature through the temperature control heating rod in the sink, and the temperature of the reactor is controlled at 26 ° C.The removal efficiency of the Congo Red reached 98.2 %.

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Abstract

The invention belongs to the field of wastewater treatment, and discloses a dyeing wastewater treatment device and a method for treating wastewater by using the device. The dyeing wastewater treatment device comprises a cathode chamber, an anode chamber, an ion exchange membrane and a power source. The method comprises the following steps: a double-chamber microbial electrolytic bath is established, activated sludge is inoculated in the cathode chamber, and dyeing wastewater is introduced, so that microbes are domesticated and reproduced; an external power supply is used for providing different external voltages, and the cathode potential is controlled, thereby promoting the cathode to form the specific microbial film with favorable electrochemical activity; after the pH value, hydraulic retention time, COD (chemical oxygen demand) concentration of influent water and other parameters of the wastewater are regulated, the dyeing wastewater is decolorized and degraded in the cathode chamber of the reactor, and is finally discharged out of the cathode chamber, wherein the azo dye decolorization rate reaches 90% or above.

Description

Technical field [0001] The invention involves the field of water treatment, which specializes in a method of printing and dyeing wastewater treatment devices and the use of the device to handle wastewater. Background technique [0002] Due to large water volume, complex composition, and large amount of organic matter that contains a lot of difficulty, it is one of the most difficult industrial wastewater. The main treatment methods of printing and dyeing wastewater include materialization and biological methods.On the one hand, the materialization method is better, but the treatment cost is very expensive. At the same time, a large number of chemicals used can also cause secondary pollution. On the other hand, the traditional biological method is due to the long cycle and the low decoration rate of the printed and dyeing wastewater, which makes it makes it allowedThe effect is unsatisfactory. [0003] The biochemical chemical system is a new biological treatment technology, an im...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/00C02F103/30
CPCC02F3/005C02F2103/30
Inventor 伍永钢鲁正伟杨周生
Owner ANHUI NORMAL UNIV
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