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Fenton cooperated ozone fluidized catalytic oxidation waste water treatment device and waste water treatment method thereof

A catalytic oxidation and wastewater treatment technology, applied in the direction of oxidized water/sewage treatment, processing wastewater treatment, water/sewage treatment, etc., can solve the problems of high wastewater cost, low ozone solubility, low ozone utilization rate, etc., to reduce wastewater Pollution load, high mass transfer efficiency, and the effect of improving the removal effect

Active Publication Date: 2017-02-01
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, the solubility of ozone in wastewater is low, and the utilization rate of ozone in the wastewater treatment process is low. Part of the unreacted ozone is discharged with the tail gas, which has become one of the main reasons for the high cost of ozone treatment wastewater

Method used

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  • Fenton cooperated ozone fluidized catalytic oxidation waste water treatment device and waste water treatment method thereof

Examples

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Effect test

Embodiment 1

[0050] In this example, the Fenton cooperative ozone fluidized catalytic oxidation wastewater treatment device is used to treat the waste water of southern hardwood pulp D0 / C-(EO)PD1 bleaching wastewater after hydrolysis acidification and activated sludge treatment, and the COD of the wastewater cr 320 mg / L, BOD 5 It is 60 mg / L and the color is 630 C.U.

[0051] The method for treating southern hardwood pulp bleaching wastewater by Fenton in collaboration with ozone fluidized catalytic oxidation wastewater treatment device of the present invention includes the following steps and process conditions:

[0052] (1) Pretreatment: The effluent from the secondary sedimentation tank is pumped into the pretreatment tower 9 through the water distribution pipe 12 at the bottom of the pretreatment tower 9, and the ozone-oxygen mixed gas tail gas from the gas collection device 7 at the top of the catalytic oxidation tower 1 passes through The gas distribution pipe 13 set at the bottom of the pr...

Embodiment 2

[0059] In this example, the Fenton cooperative ozone fluidized catalytic oxidation wastewater treatment device is used to treat waste paper deinking pulping wastewater after IC tower and SBR treatment, and the COD of the wastewater cr It is 390 mg / L and the color is 650 C.U.

[0060] The method for treating waste paper deinking pulping wastewater by Fenton in cooperation with ozone fluidized catalytic oxidation wastewater treatment device of the present invention includes the following steps and process conditions:

[0061] (1) Pretreatment: The effluent from the secondary sedimentation tank is pumped into the pretreatment tower 9 through the water distribution pipe 12 at the bottom of the pretreatment tower 9, and the ozone-oxygen mixed gas tail gas from the gas collection device 7 at the top of the catalytic oxidation tower 1 passes through The gas distribution pipe 13 set at the bottom of the pretreatment tower 9 enters the pretreatment tower 9; the ozone and oxygen mixed gas and...

Embodiment 3

[0068] In this example, Fenton cooperates with ozone fluidization catalytic oxidation wastewater treatment device to treat waste paper and papermaking wastewater after hydrolysis acidification and SBR treatment, and the COD of wastewater cr It is 230 mg / L and the color is 320 C.U.

[0069] The method for treating southern hardwood pulp bleaching wastewater by Fenton in collaboration with ozone fluidized catalytic oxidation wastewater treatment device of the present invention includes the following steps and process conditions:

[0070] (1) Pretreatment: The effluent from the secondary sedimentation tank is pumped into the pretreatment tower 9 through the water distribution pipe 12 at the bottom of the pretreatment tower 9, and the ozone-oxygen mixed gas tail gas from the gas collection device 7 at the top of the catalytic oxidation tower 1 passes through The gas distribution pipe 13 set at the bottom of the pretreatment tower 9 enters the pretreatment tower 9; the ozone and oxygen m...

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Abstract

The invention discloses a Fenton cooperated ozone fluidized catalytic oxidation waste water treatment device and a waste water treatment method thereof. The device comprises a pretreatment tower (9), a catalytic oxidation tower (1), an aftertreatment tower (27), an agent preparation system (30), an ozone supply system and a clear water pool (29). The waste water treatment method of the device comprises the following steps of 1, pretreatment; 2, catalytic oxidation treatment; 3, aftertreatment. By means of the waste water treatment method of the device, waste water treatment efficiency is improved, the removal effect of COD and chroma of waste water is improved, meanwhile, the use amount of a chemical reagent is reduced, sludge output is reduced, the ozone utilization rate is increased, and the waste water treatment cost is reduced.

Description

Technical field [0001] The invention relates to a wastewater treatment device and a wastewater treatment method, in particular to a Fenton cooperative ozone fluidization catalytic oxidation wastewater treatment device and a wastewater treatment method thereof. Background technique [0002] Papermaking wastewater contains a certain concentration of difficult-to-biodegradable organics, mainly lignin degradation products, resulting in papermaking wastewater still containing relatively high concentrations of organic pollutants after secondary biological treatment, which cannot meet the national emission standards, so further measures must be taken. In-depth processing to reduce the impact on humans and the environment. [0003] Fenton catalytic oxidation technology is currently one of the effective ways to degrade and remove difficult-to-biodegradable organics in wastewater. It has the advantages of mild reaction conditions, fast reaction speed, and good treatment effect, so it has bee...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F103/28
CPCC02F9/00C02F2103/28C02F1/56C02F1/725C02F1/722C02F1/78C02F1/66
Inventor 雷利荣李友明
Owner SOUTH CHINA UNIV OF TECH
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