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Preparation method of catalyst for advanced treatment of industrial wastewater by ozone or hydrogen peroxide

A technology for advanced treatment and industrial wastewater, applied in catalyst activation/preparation, oxidized water/sewage treatment, metal/metal oxide/metal hydroxide catalyst, etc., can solve secondary pollution, system instability, energy consumption Advanced problems, to achieve the effect of prolonging the service life, improving catalytic activity and stability

Pending Publication Date: 2022-05-13
扬州优境环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a method for preparing a catalyst for advanced treatment of industrial wastewater with ozone or hydrogen peroxide. The catalyst of the present invention is used to solve the problems of prior art and advanced oxidation technology for advanced treatment of wastewater, with low COD removal rate and low sludge output. Large size, high energy consumption, unstable system, large secondary pollution, high post-maintenance costs, etc.

Method used

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  • Preparation method of catalyst for advanced treatment of industrial wastewater by ozone or hydrogen peroxide
  • Preparation method of catalyst for advanced treatment of industrial wastewater by ozone or hydrogen peroxide
  • Preparation method of catalyst for advanced treatment of industrial wastewater by ozone or hydrogen peroxide

Examples

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Embodiment 1

[0029] A preparation method of a catalyst for advanced treatment of industrial wastewater with ozone or hydrogen peroxide, the steps are as follows:

[0030] Step 1: After removing impurities from the sawdust, crush it to 100 mesh to obtain activated carbon raw material powder;

[0031] Step 2: drying the activated carbon raw material powder prepared in step 1 at 100°C to obtain a raw material powder with a water content of 18%;

[0032] Step 3: Put the raw material powder into the granulator to make a short columnar polymer, put it in an oven and bake it to shape, the temperature of the baking is 300°C, and the baking time is 3 hours;

[0033] Step 4: Phosphoric acid is configured into a solution with a mass fraction of 50%, which is used as an activator for standby;

[0034] Step 5: put the activator in step 4 and the polymer prepared in step 3 into the rotary kiln for carbonization activation according to the mass ratio of 1:3, control the roasting temperature in the rotar...

Embodiment 2

[0040] A preparation method of a catalyst for advanced treatment of industrial wastewater with ozone or hydrogen peroxide, the steps are as follows:

[0041] Step 1: After removing impurities from the sawdust, crush it to 100 mesh to obtain activated carbon raw material powder;

[0042] Step 2: drying the activated carbon raw material powder prepared in step 1 at 105°C to obtain a raw material powder with a water content of 18%;

[0043] Step 3: Put the raw material powder into the granulator to make a short columnar polymer, put it in an oven and bake it to shape, the temperature of the baking is 350°C, and the baking time is 2 hours;

[0044] Step 4: Phosphoric acid is configured into a solution with a mass fraction of 55%, which is used as an activator for standby;

[0045] Step 5: Put the activator in step 4 and the polymer prepared in step 3 into the rotary kiln for carbonization and activation according to the mass ratio of 1:3. Control the roasting temperature in the r...

Embodiment 3

[0051] A method for preparing a catalyst for advanced treatment of industrial wastewater with catalytic ozone or hydrogen peroxide, the steps are as follows:

[0052] Step 1: After removing impurities from the sawdust, crush it to 100 mesh to obtain activated carbon raw material powder;

[0053]Step 2: drying the activated carbon raw material powder prepared in step 1 at 110°C to obtain a raw material powder with a water content of 18%;

[0054] Step 3: Put the raw material powder into the granulator to make a short columnar polymer, put it in an oven and bake it to shape, the temperature of the baking is 400°C, and the baking time is 2.5 hours;

[0055] Step 4: Phosphoric acid is configured into a solution with a mass fraction of 60%, which is used as an activator for standby;

[0056] Step 5: put the activator in step 4 and the polymer prepared in step 3 into the rotary furnace for carbonization activation according to the mass ratio of 1:3, control the calcination temperat...

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Abstract

The invention provides a preparation method of a catalyst for advanced treatment of industrial wastewater by ozone or hydrogen peroxide, and belongs to the technical field of catalyst preparation. According to the catalyst, modified wooden activated carbon serves as a carrier, iron, manganese, copper, nickel and cerium serve as active components, the active components are steeped on the wooden activated carbon carrier in a salt solution form and permeate into pores of the carrier, high-temperature sintering is carried out after steeping balance, and the catalyst is prepared. The high-activity component is reasonable in proportion and high in loading strength, and has the advantages of high abrasive resistance, high compression strength, large specific surface area, no hardening after long-time use and the like.

Description

technical field [0001] The invention relates to the technical field of catalyst preparation, in particular to a method for preparing a catalyst for advanced treatment of industrial wastewater with ozone or hydrogen peroxide. Background technique [0002] After biochemical treatment, chemical wastewater still has high COD, chroma, toxic and harmful components, and direct discharge will cause great harm to the human body and the surrounding environment. In recent years, advanced oxidation technologies commonly used in the market for advanced wastewater treatment mainly include ozone oxidation, photocatalytic oxidation, Fenton oxidation, electrocatalytic oxidation, and wet oxidation. In the actual application process, this kind of technology has the disadvantages of low COD removal rate, large sludge output, high energy consumption, unstable system, large secondary pollution, and high maintenance costs in the later period. [0003] At present, the advanced treatment process of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889B01J37/00B01J37/08B01J37/02B01J37/06C02F1/72C02F1/78C02F101/30
CPCB01J23/8892B01J37/0063B01J37/0027B01J37/08B01J37/0201B01J37/06C02F1/725C02F1/78C02F1/722C02F2101/30
Inventor 陶健
Owner 扬州优境环境工程有限公司
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