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Composite catalytic oxidation treatment system for high-salinity wastewater

A catalytic oxidation and treatment system technology, which is applied in the field of high-salt wastewater composite catalytic oxidation treatment system, can solve the problems of loss of transmission effect and limited wastewater treatment effect, and achieve the effects of reduced treatment cost, improved oxidation efficiency, and extended service life

Active Publication Date: 2021-03-30
山东锐海环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Similarly, the ultraviolet oxidation process has the disadvantage of losing its effect due to the enrichment of colored organic matter in the water on the surface of the lamp tube or sleeve, which affects the propagation of ultraviolet light in water.
[0010] Therefore, there are certain drawbacks in the existing treatment methods, and the treatment effect on wastewater is still limited.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Adopt the treatment system provided by the present invention to process the production wastewater of a certain rubber additive factory:

[0058] Among them, the electrolytic anode plate 2 adopts a titanium-based electrode, and the surface catalytic component is SnO 2 ,Sb 2 o 3 ,IrO 2 ,RuO 2 , Ta 2 o 5 The mixture, the mass ratio is 2:2:2:1:1, the distance between the plates is 5 cm, and the current density is 2.5mA / cm 2 , the wavelength of ultraviolet light emitted by the ultraviolet lamp is 185-254nm, the ultrasonic frequency is 200KHZ; the ultrasonic sound intensity adjustment range is 10W / cm 2 ; The hydraulic retention time of the waste water is 120 minutes, and the flow rate of the induced draft fan 12 is 50L / min. The total power of the equipment is 18Kw.

[0059] Influent COD is 8650mg / L, NH 3 -N is 1200mg / L, conductivity is 116000s / cm;

[0060] Effluent COD is 128mg / L, NH 3 -N is 5.2mg / L, and the power consumption per ton of water is 36Kw.h.

Embodiment 2

[0062] Adopt the processing system provided by the invention to process the evaporated mother liquor of a certain chemical plant:

[0063] Among them, the electrolytic anode plate 2 adopts a titanium-based electrode, and the surface catalytic component is SnO 2 ,Sb 2 o 3 ,IrO 2 ,RuO 2 , Ta 2 o 5 The mixture, the mass ratio is 2:2:1:2:2, the distance between the plates is 5 cm, and the current density is 5mA / cm 2 , the wavelength of ultraviolet light emitted by the ultraviolet lamp is 185-254nm, the ultrasonic frequency is 100KHZ; the ultrasonic sound intensity adjustment range is 20W / cm 2 The hydraulic retention time of the waste water is 60 minutes, and the flow rate of the induced draft fan 12 is 100L / min. The total power of the equipment is 30Kw.

[0064] Influent COD is 6500mg / L, NH 3 -N is 98mg / L, and the conductivity is 56000s / cm;

[0065] Effluent COD is 212mg / L, NH 3 -N is 0.5mg / L, and the power consumption per ton of water is 30Kw.h.

Embodiment 3

[0067] Adopt the treatment system provided by the invention to process the waste water produced by a certain dye intermediate:

[0068] Among them, the electrolytic anode plate 2 adopts a titanium-based electrode, and the surface catalytic component is SnO2 ,Sb 2 o 3 ,IrO 2 ,RuO 2 , Ta 2 o 5 The mixture, the mass ratio is 1:1:2:1:1, the distance between the plates is 10 cm, and the current density is 2mA / cm 2 , the wavelength of ultraviolet light emitted by the ultraviolet lamp is 185-254nm, the ultrasonic frequency is 100KHZ; the ultrasonic sound intensity adjustment range is 5W / cm 2 ; The hydraulic retention time of the waste water is 30 minutes, and the flow rate of the induced draft fan 12 is 30L / min. The total power of the equipment is 10Kw.

[0069] Influent COD is 3650mg / L, NH 3 -N is 420mg / L, and the conductivity is 56000s / cm;

[0070] Effluent COD is 31mg / L, NH 3 -N is 3.8mg / L and the power consumption per ton of water is 5Kw.h.

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Abstract

The invention relates to a composite catalytic oxidation treatment system for high-salinity wastewater, belonging to the technical field of wastewater treatment. The composite catalytic oxidation treatment system for high-salinity wastewater comprises an electrolytic cell, wherein electrolytic electrodes are arranged in the electrolytic cell in parallel; a positive electrode of a power supply is connected with an anode plate; a negative electrode of the power supply is connected with a cathode plate; ultrasonic vibration rods are vertically fixed between the anode plate and the cathode plate,and two polar plates are arranged between every two ultrasonic vibration rods; the peripheries of ultraviolet lamp tubes are sleeved with quartz sleeves; the quartz sleeves are perpendicular to the ultrasonic vibration rods and fixed between the polar plates; the ultraviolet lamp tubes are transversely arranged between the two polar plates or the multiple polar plates; and one ends of the quartz sleeves are opened to facilitate air entering, and the other ends of the quartz sleeves are sealed by air pipes and connected with perforated air distribution pipes arranged at the bottom of the electrolytic cell through an induced draft fan. The system is simple in structure; the effects of an electrolytic catalytic oxidation device, an ultrasonic device and the ultraviolet lamps are comprehensively utilized; the treatment efficiency of the high-salinity wastewater is high; comprehensive treatment effect is excellent; cost is low; and industrial application is facilitated.

Description

technical field [0001] The invention relates to a high-salt wastewater composite catalytic oxidation treatment system, which belongs to the technical field of wastewater treatment. Background technique [0002] With the rapid development of modern industry, the industrial wastewater produced not only increases in water volume, but also develops towards the trend of complex composition and high content of inorganic salts. At present, most of the industrial wastewater treatment processes at home and abroad adopt economical biological methods for treatment. However, with the increasingly stringent discharge standards in various places, it is difficult to meet the discharge targets only by biochemical treatment, especially high-salt and refractory wastewater. Require. [0003] The treatment of high-salt wastewater has been a hot topic of research by scholars at home and abroad in recent years. In order to achieve a higher treatment depth, physical adsorption and chemical oxida...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/461C02F1/467C02F1/32C02F1/36C02F1/78C02F101/30
CPCC02F1/325C02F1/36C02F1/46104C02F1/46109C02F1/4672C02F1/725C02F1/78C02F2001/46142C02F2101/30
Inventor 邹宗海冯建辉张金富王东恩李波梁华
Owner 山东锐海环境科技有限公司
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