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Method for preparing semiconductor nano-material and processing organic-inorganic wastewater synchronously

A technology of organic wastewater and simultaneous treatment, applied in water/sewage treatment, chemical instruments and methods, water/sewage multi-stage treatment, etc., can solve the problems of secondary pollution, incomplete and complete pollution, loss, etc., to reduce costs Effect

Inactive Publication Date: 2009-05-13
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] At present, all countries in the world are making great efforts to improve the environment, but so far the control of pollution at home and abroad is still not perfect and thorough, and it is far from stopping the pollution of wastewater to the environment.
There are even some countries that only pay attention to the treatment of wastewater itself, while ignoring the recycling and harmless treatment of concentrated products, allowing them to be lost in the environment and causing secondary pollution
Especially for the treatment of wastewater containing heavy metal inorganic pollutants and organic pollutants, there is no report

Method used

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  • Method for preparing semiconductor nano-material and processing organic-inorganic wastewater synchronously
  • Method for preparing semiconductor nano-material and processing organic-inorganic wastewater synchronously
  • Method for preparing semiconductor nano-material and processing organic-inorganic wastewater synchronously

Examples

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Effect test

Embodiment 1

[0030] (1) Dissolve 0.5g o-phenanthroline in 80ml chloroform, stir vigorously at a speed of 4000rpm for 15min to make a carrier-containing liquid film, dry the cleaned microporous membrane and put it into the above liquid film system Take it out after soaking for 24 hours, clean the surface of the membrane with filter paper, put it into a reaction vessel, and form an isolation system with SLM in the middle and solution phase on the left and right, and an electric stirrer on each side of the membrane.

[0031] (2) prepare methyl orange content 40mg / L and Cd 2+ Content 0.1mol / LA solution, prepare methyl orange content 40mg / L and S 2- Content 0.1mol / L B solution, adjust the pH value of solutions A and B to 8-9, then add 80ml each of A and B solutions to the left and right sides of the SLM, and stir and react at 100-150rpm for 16 hours. Use atomic absorption spectrophotometry (GB7475-87) and methylene blue spectrophotometry (GB / T 16489-1996) to detect the contents of cadmium and ...

Embodiment 2

[0034] (1) Dissolve 0.3g o-phenanthroline in 70ml chloroform, stir vigorously at a speed of 3000rpm for 10min to form a carrier-containing liquid membrane, dry the cleaned microporous membrane and put it into the above liquid membrane system Take it out after soaking for 18 hours, clean the surface of the membrane with filter paper, and put it into a reaction vessel to form an isolation system with SLM in the middle and solution phase on the left and right, and an electric stirrer on each side of the membrane.

[0035] (2) prepare methyl orange content 60mg / L and Fe 2+ Content 0.01mol / LA solution, prepared methyl orange content 60mg / L, S 2- Content 0.01mol / L B solution, adjust the pH value of solutions A and B to 8-9, then add 60ml each of A and B solutions to the left and right sides of the SLM, and stir and react at 150-200rpm for 12h. Use flame atomic absorption spectrophotometry (GB11912-87) and methylene blue spectrophotometry (GB / T 16489-1996) to detect the content of i...

Embodiment 3

[0038] (1) Dissolve 0.2g o-phenanthroline in 60ml chloroform, stir vigorously at a speed of 2000rpm for about 20min to form a carrier-containing liquid film, dry the cleaned microporous filter membrane and put it into the above liquid film system Take it out after soaking in medium for 36 hours, clean the surface of the membrane with filter paper, put it into a reaction vessel, and form an isolation system with SLM in the middle and solution phase on the left and right, and an electric stirrer on each side of the membrane.

[0039] (2) Prepare methyl orange content 20mg / L, Ni 2+ Content 0.05mol / L A solution, prepared methyl orange content 20mg / L, S 2- Content 0.05mol / L B solution, adjust the pH value of solutions A and B to 8-9, then add 100ml each of A and B solutions to the left and right sides of the SLM, and stir and react at 120-160rpm for 12 hours. Use flame atomic absorption spectrophotometry (GB11912-87) and methylene blue spectrophotometry (GB / T 16489-1996) to detect...

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Abstract

The invention relates to a method of preparing a semi-conducting nanometer material for synchronously processing inorganic and organic waste water in the waste water processing technique filed, which comprises the following steps: dissolving 0.2-0.5g ortho phenanthroline carrier in 60-80ml chloroform, mixing and manufacturing the liquid film with the carrier; immersing the microporous filter membrane and fixing the microporous filter membrane in the reaction container and forming the supporting liquid film; regarding the waste water solution with S2-ion in which the methyl orange is added as the solution A; regarding the waste water solution with high-density metal in which helianthine is added as the solution B; putting the A solution and the B solution separately in left side and right side of the supporting liquid film system, mixing and getting the liquid film absorbing the nanometer photocatalysis material; proceeding with ultraviolet irradiation for the dealt A, B solution separately for degrading the organic composition helianthine in A, B solution with the nanometer photocatalysis material at 80-120 minutes; discharging the dealt waste water. The invention can be used for processing inorganic and organic waste water, and the discharging water reaches the national emission standard.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, and in particular relates to a method for synchronously treating inorganic and organic waste water by preparing semiconductor nanomaterials. Background technique [0002] Water body is one of the main natural resources that human beings rely on for survival, and it is also an important part of the human ecological environment, as well as a reservoir of material biogeochemical cycles, which has certain sensitivity to the environment. Due to the impact of human activities, more and more pollutants have entered the water environment, and these pollutants have caused many problems to the environment and human health. Especially with the development of mining, smelting, chemical industry, electroplating, electronics, tanning and printing and dyeing industries, as well as unreasonable landfill and stacking of civil solid waste, a large amount of chemical costs, the application of pesticid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F1/62C02F1/28C02F1/32
Inventor 董凤强吴庆生孙冬梅
Owner TONGJI UNIV
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