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Manufacturing method of netted catalyst for degrading organic pollutant in wastewater by photocatalysis

A technology of organic pollutants and production methods, applied in the direction of water pollutants, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., to achieve the effects of increased efficiency, uniform and stable reaction, and increased specific surface area

Active Publication Date: 2011-02-16
深圳市世纪清源环保技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] The problem to be solved by the present invention is to overcome the deficiencies in the existing methods for treating organic pollutants such as anionic surfactants, and provide a method for producing a network catalyst with a longer service time and better effect and the application of the network catalyst Organic Pollutant Wastewater Treatment Plant

Method used

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  • Manufacturing method of netted catalyst for degrading organic pollutant in wastewater by photocatalysis
  • Manufacturing method of netted catalyst for degrading organic pollutant in wastewater by photocatalysis
  • Manufacturing method of netted catalyst for degrading organic pollutant in wastewater by photocatalysis

Examples

Experimental program
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Effect test

Embodiment 1

[0036] The production method of the net catalyst for the photocatalytic degradation of organic pollutants in wastewater, the steps are as follows:

[0037] (1) Choose 8-mesh stainless steel mesh and cut it into small squares, soak it with dilute acid, here use more commonly used dilute hydrochloric acid, wait for it to corrode, take it out and rinse it with clean water until there is no residual acid, dry it at room temperature, and keep the rust spots (rust spots) on the net It is a compound of various transition metals such as Cr, Ni, Fe and other elements in the stainless steel composition).

[0038] (2), take 1 part of nano TiO by weight 2 Stir and disperse with 4 parts of acetone, then take 2 parts of epoxy resin, 2 parts of curing agent and a little plasticizer, add acetone and TiO 2 In the dispersion system, fully mix and grind evenly.

[0039](3) Coating the evenly ground catalyst jelly on a stainless steel mesh. During the coating process, the rust spots (compounds...

Embodiment 2

[0044] The network catalyst production method of photocatalytic degradation organic pollutant in the present embodiment is different from embodiment 1 in that:

[0045] (1) Choose 1 / 4 purpose ordinary barbed wire, nickel-plated by electroplating method, the amount of nickel plating is less than 5% of the surface area of ​​the mesh substrate, then cut into a certain specification for later use, soak in dilute hydrochloric acid, wait for it to corrode, and take it out Rinse with clean water until there is no residual acid, dry at room temperature, and keep the rust spots on the net (rust spots are compounds of transition metal Ni, Fe and other elements).

[0046] (2), take 1 part of nano TiO by weight 2 Stir and disperse with 4 parts of acetone, then take 6 parts of epoxy resin, 6 parts of curing agent and a little plasticizer, add acetone and TiO 2 In the dispersion system, fully mix and grind evenly.

[0047] (3) Place the coated net-shaped supported catalyst to cure natural...

Embodiment 3

[0051] The present embodiment photocatalytically degrades the reticular catalyst production method of organic pollutants in wastewater, which is different from Embodiment 1 in that:

[0052] (1) Select 4-mesh stainless steel mesh.

[0053] (2), take 1 part of nano-TiO 2 Add 3 parts of acetone to stir and disperse, then add 1 part of epoxy resin, 1 part of curing agent and a little plasticizer to fully mix and grind evenly.

[0054] (3) Take it out after immersing in acetone for 15 minutes to destroy the dense surface film layer to increase the specific surface area of ​​the catalyst.

[0055] Others are the same as in Example 1.

[0056] After testing the wastewater discharged after the above three treatments, the removal rate of LAS, the main substance in organic compounds, is above 90%, and the effluent fully meets the design requirements, which is much higher than the existing removal rate of less than 50%. % standard. Moreover, the smaller the grid width of the mesh ca...

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Abstract

The invention relates to a manufacturing method of a netted catalyst for degrading the organic pollutant in wastewater by photocatalysis and a wastewater treating device. The manufacturing method comprises: using the wire net plated with nickel as a carrier, coating a catalyst for solidification, wherein the catalyst mixed liquid includes nano TiO2, acetone, epoxy resin, solidifying agent and appropriate plasticizer, soaking in the acetone solution. A case of the treatment device is provided with a plurality of independent deflecting chambers connected end-to-end in turn, two ends of which areprovided with a water inlet and a water outlet. A plurality of solid netted bodies solidified with the catalyst are overlapped at intervals in the deflecting chamber. A through hole is opened in themiddle of the solid netted body. An ultraviolet light source is inserted in the through hole. An aeration pipe is arranged on the bottom of the deflecting chamber. The device can deeply degrade the organic matter in wastewater.

Description

technical field [0001] The invention relates to a production method of a net catalyst for photocatalytically degrading organic pollutants in wastewater and an organic pollutant wastewater treatment device using the net catalyst. Background technique [0002] In recent years, my country's detergent industry has developed rapidly, and its output has increased year by year. In 2005, my country's synthetic detergent production was 5.1 million tons, in 2006 it was 5.5 million tons, in 2007 it reached 6 million tons, and in 2008 it is expected to be 6.5 million tons. At present, the surfactants that are widely used in my country are: anionic surfactants (mainly linear alkylbenzene sulfonate LAS) account for 70% of the total; nonionic surfactants account for 20% of the total; others account for 20% of the total. 10%. Synthetic detergents have a wide range of uses, almost involving every aspect of family life, industrial and agricultural production. [0003] Photocatalytic oxidati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J35/02B01J37/00B01J23/755B01J21/06C02F1/30C02F1/32C02F1/72C02F101/30
Inventor 任应刚
Owner 深圳市世纪清源环保技术有限公司
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