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Composite catalyst for catalytic and oxidized treatment of three-phase waste water

A technology for wastewater treatment and catalytic oxidation, which is applied in the direction of oxidized water/sewage treatment, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc. It can solve the long time of oxidation treatment, environmental protection impact, Deal with problems such as poor results, and achieve the effect of abundant raw materials, environmental protection, and mature manufacturing technology

Active Publication Date: 2006-12-13
SHANGHAI TIANFENG ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Polymer compounds, synthetic resins, pharmaceutical and dye intermediates with complex synthetic structures, and various daily-use auxiliaries. These compounds and products are accompanied by a certain amount of high-concentration industrial wastewater that needs to be purified and treated during the production process. If the traditional physicochemical and coagulation methods are used for this kind of industrial wastewater, the effect is not good; if the wet oxidation technology is used, higher temperature and pressure are required, the oxidation treatment takes a long time, the energy consumption is large, and the treatment effect is not good. Poor, resulting in a negative impact on environmental protection

Method used

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  • Composite catalyst for catalytic and oxidized treatment of three-phase waste water
  • Composite catalyst for catalytic and oxidized treatment of three-phase waste water

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Embodiment 1

[0035] Such as figure 1 , 2 As shown, it is a composite catalyst process flow chart for three-phase catalytic oxidation treatment of wastewater, and the composite catalyst preparation system for three-phase catalytic oxidation treatment of wastewater consists of a juice preparation tank 1, a juice drum 2, a motor 3, a vacuum Box 4, vacuum pump 5, juice separation tank 6, juice filter tank 7, delivery pump 8, baking oven 9, catalyst activation furnace 10, juice preparation tank 1 is connected with juice drum 2 through a material pipe, and motor 3 Connect the juice extraction drum 2, the juice extraction drum 2 is connected with the vacuum box 4 through the vacuum tube, the vacuum pump 5 is connected with the vacuum box 4, the juice extraction liquid separation tank 6 is set directly below the juice extraction drum 2, and the juice extraction liquid filter tank is connected with the juice extraction liquid through the tube 7 is connected, and the dipping liquid filter tank 7 is...

Embodiment 2

[0043] First, 1.6 parts of cerium nitrate, 8.7 parts of copper nitrate, 18.9 parts of manganese nitrate, 0.6 part of zirconium nitrate, 0.6 part of cobalt nitrate, and 69.6 parts of tap water are prepared as a dipping liquid and placed in the dipping liquid preparation tank 1 for subsequent use.

Embodiment 1

[0045] Technical indicators of composite catalyst products for three-phase catalytic oxidation treatment of wastewater:

[0046] Appearance: Cylindrical particles Φ4×(50-60)mm

[0047] Moisture ≤30%

[0048] Strength ≥92.5%

[0049] Bulk density 540±10kg / m 3

[0050] Specific surface area (BET) 650-700m 3 / g

[0051] Pore ​​volume 0.3648cm 3 / g

[0052] Average pore diameter 1.9556mm

[0053] Service life three years

[0054] When in use, high-concentration wastewater and oxidant (chlorine dioxide) are homogeneously mixed into the catalytic oxidation tower equipped with a composite catalyst supported by activated carbon, and an appropriate amount of air is introduced into the bottom of the tower to form a three-phase catalytic oxidation state, which is called normal temperature. Atmospheric pressure three-phase catalytic oxidation treatment of high concentration wastewater.

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Abstract

The related preparation method for a complex catalyst comprises: preparing leached solution to add active carbon as carrier by volume ratio with solution as 1.25:1, evacuating, rotating revolving drum as 3-5r / min to leach for 36-40h; then, putting the carrier into separation slot to filter and put into oven and send in catalyst activation furnace together, heating to 540-560Deg, holding for 2-3h, cooling to 150Deg, holding for one hour, cooling to room temperature, and packing. This product has well treatment effect and benefit to environmental friendly.

Description

technical field [0001] The invention relates to a composite catalyst for treating wastewater by three-phase catalytic oxidation, which is used for treating industrial wastewater containing high concentration of organic matter, high chroma, high salt content and difficult to biodegrade, and belongs to the technical field of catalysts. Background technique [0002] Polymer compounds, synthetic resins, pharmaceutical and dye intermediates with complex synthetic structures, and various daily-use auxiliaries. These compounds and products are accompanied by a certain amount of high-concentration industrial wastewater that needs to be purified and treated during the production process. If the traditional physicochemical and coagulation methods are used for this kind of industrial wastewater, the effect is not good; if the wet oxidation technology is used, higher temperature and pressure are required, the oxidation treatment takes a long time, the energy consumption is large, and the...

Claims

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Application Information

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IPC IPC(8): B01J23/889C02F1/74
Inventor 杨剑平罗年昆陆曙光
Owner SHANGHAI TIANFENG ENVIRONMENTAL PROTECTION
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