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Double-effect catalytic ozonation wastewater treatment device and method

A technology for ozone catalytic oxidation and wastewater treatment, which is applied in the direction of oxidized water/sewage treatment, special compound water treatment, water/sewage treatment, etc. Effect of secondary pollution and low treatment cost

Inactive Publication Date: 2016-11-23
SHANDONG LONGANTAI ENVIRONMENTAL PROTECTION SCI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Although simple ozone oxidation can remove organic matter to a certain extent, it is difficult for ozone to further oxidize the oxidized small molecular substances, so pure ozone oxidation has certain limitations on the mineralization of organic matter

Method used

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  • Double-effect catalytic ozonation wastewater treatment device and method

Examples

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Effect test

Embodiment 1

[0028] Biochemical waste water of a rubber factory sewage styrene-butadiene workshop: water volume 150m 3 / h, COD is 95mg / L. Adopt treatment device and method provided by the present invention to process: the hydraulic retention time of waste water in the heterogeneous ozone catalytic oxidation reactor 2 is 15 minutes, and the concentration of ozone dosing in the heterogeneous ozone catalytic oxidation reactor 2 is 50mg / L , air-water mixing pump 6 circulating water volume is 300m 3 / h, the wavelength of ultraviolet light emitted by the ultraviolet lamp tube 9 is 300nm, and the hydraulic retention time of the wastewater in the ultraviolet ozone catalytic oxidation reactor 11 is 15 minutes. Outlet 13 water volume 150m 3 / h, COD is 25mg / L, ozone concentration in wastewater is 0.2mg / L, treatment power consumption is 1.5kw.h / m 3 .

Embodiment 2

[0030] Reverse osmosis concentrated water in a sewage reuse workshop of an oil refinery: water volume 100m 3 / h, COD is 220mg / L. Adopt treatment device and method provided by the present invention to process: the hydraulic retention time of waste water in the heterogeneous ozone catalytic oxidation reactor 2 is 30 minutes, and the concentration of ozone dosing in the heterogeneous ozone catalytic oxidation reactor 2 is 100mg / L , air-water mixing pump 6 circulating water volume is 200m 3 / h, the ultraviolet light emitted by the ultraviolet lamp tube 9 has a wavelength of 200nm, and the hydraulic retention time of the wastewater in the ultraviolet ozone catalytic oxidation reactor 11 is 30 minutes. Outlet 13 water volume 100m 3 / h, COD is 20mg / L, ozone concentration in wastewater is 0.1mg / L, treatment power consumption is 1.8kw.h / m 3 .

Embodiment 3

[0032] Wastewater from the extraction workshop of a rare earth smelter: water volume 200m 3 / h, COD is 320mg / L. Adopt treatment device and method provided by the present invention to process: the hydraulic retention time of waste water in the heterogeneous ozone catalytic oxidation reactor 2 is 60 minutes, and the concentration of ozone dosing in the heterogeneous ozone catalytic oxidation reactor 2 is 300mg / L , air-water mixing pump 6 circulating water volume is 600m 3 / h, the ultraviolet light emitted by the ultraviolet lamp tube 9 has a wavelength of 100nm, and the hydraulic retention time of the wastewater in the ultraviolet ozone catalytic oxidation reactor 11 is 60 minutes. Outlet 13 water volume 200m 3 / h, COD is 40mg / L, ozone concentration in wastewater is 0.3mg / L, treatment power consumption is 2.1kw.h / m 3 .

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Abstract

The invention discloses a double-effect catalytic ozonation wastewater treatment device and method. The wastewater treatment device comprises a heterogeneous catalytic ozonation reactor. The heterogeneous catalytic ozonation reactor is provided with a water inlet and a water outlet and is connected with an ozone generator through an ozone pipeline. The wastewater treatment device further comprises an ultraviolet catalytic ozonation reactor which comprises a water inlet and a water outlet. The water inlet pipe of the ultraviolet catalytic ozonation reactor is connected with the water outlet of the heterogeneous catalytic ozonation reactor. The ultraviolet catalytic ozonation reactor comprises an ultraviolet lamp light source arranged in the reactor. The double-effect catalytic ozonation wastewater treatment device has the advantages that the device is deep in wastewater treatment degree, free of secondary pollution and low in treatment cost.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a double-effect ozone catalytic oxidation wastewater treatment device and method. 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 and refractory wastewater is a hot research topic of domestic and foreign scholars in recent years. In order to achieve a higher treatment depth, physical adsorption...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/78C02F1/32
CPCC02F1/78C02F1/32C02F1/725C02F2201/007C02F2305/10
Inventor 代春龙邹宗海魏明勇
Owner SHANDONG LONGANTAI ENVIRONMENTAL PROTECTION SCI TECH CO LTD
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