Method for catalytically degrading adsorbed organic pollutants through microwave ultraviolet coupled radiation

A technology for organic pollutants and catalytic degradation, which is applied in the field of microwave ultraviolet radiation catalytic degradation of adsorbed organic pollutants, and can solve the problem of high energy consumption of photocatalytic oxidation water treatment methods, secondary solid pollutants by adsorption methods, and incomplete degradation of pollutants. and other problems, to achieve the effect of stable effect, shortening response time and increasing lifespan

Active Publication Date: 2012-10-03
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to solve the problem that the existing adsorbent needs to be replaced regularly, the adsorption method will produce secondary solid pollutants, and the photocatalytic oxidation water treatment method has high energy consumption, easily produces thermal pollution, and the pollutants are not completely degraded. problem, and then provide a method for catalytic degradation of adsorbed organic pollutants by microwave ultraviolet coupled radiation

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  • Method for catalytically degrading adsorbed organic pollutants through microwave ultraviolet coupled radiation

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specific Embodiment approach 1

[0028] Specific implementation mode one: combine figure 1 To illustrate this embodiment, the microwave ultraviolet coupling reaction device used in the microwave ultraviolet coupling radiation catalytic degradation method for adsorbed organic pollutants in this embodiment includes an air inlet pipe 1, an air outlet pipe 2, a quartz reactor 3, a lamp holder 4, an electrodeless ultraviolet Lamp 5 and microwave oven 6, described lamp holder 4 is arranged on the base 6-1 of microwave oven 6, electrodeless ultraviolet lamp 5 is arranged on lamp holder 4, and quartz reactor 3 covers the outside of lamp holder 4 and electrodeless ultraviolet lamp 5, The lower end of the inlet pipe 1 passes through the microwave oven 6 and communicates with the bottom of the quartz reactor 3, the upper end of the inlet pipe 1 is connected to the outside of the microwave oven 6, and the lower end of the outlet pipe 2 passes through the microwave oven 6 and communicates with the top of the quartz reactor...

specific Embodiment approach 2

[0035] Embodiment 2: This embodiment differs from Embodiment 1 in that the air residence time in step 3 is between 15s and 60s.

specific Embodiment approach 3

[0036] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the microwave frequency in step 3 is 915 MHz or 2450 MHz.

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Abstract

The invention relates to a method for catalytically degrading adsorbed organic pollutants through microwave ultraviolet coupled radiation, belonging to the technical field of pollution control technologies. The invention solves the problems that the consumption level of the traditional adsorbent is high and secondary solid pollutants are produced by using an adsorption method, and overcomes the defects that the microwave-assisted photocatalytic oxidation water treatment and waste gas treatment method is high in energy consumption, easy for generation of thermal pollution and incomplete in degradation of pollutants. In the method, an adsorbent is used to enrich organic matters in waste water and waste gas; a porous wave-adsorbing catalyst for adsorbing the organic matters is placed in a quartz reactor; air with the humidity being 30-100% is introduced into the quartz reactor via an air intake pipe, the microwave ultraviolet reaction time is adjusted to be 10-60 min, and the microwave power is 100-2000 W; and a microwave oven is started, a non-polar ultraviolet lamp is excited by microwaves to generate ultraviolet light, and organic matters are thoroughly mineralized under the combined action of the microwaves, the ultraviolet light and the catalyst. The method is used for treating the organic matters in the waste water and the waste gas.

Description

technical field [0001] The invention relates to a method for catalytically degrading adsorbed organic pollutants by microwave ultraviolet radiation, and belongs to the technical field of pollution control technology. Background technique [0002] With the rapid development of the economy, industrial wastewater and petroleum wastewater from papermaking, tanning, petrochemicals, pesticides, pharmaceuticals, dyes, chemical fibers, coking, gas, textile printing and dyeing, food, wood processing, etc. are increasing, and its pollution level and health impact Gaining importance. Among them, industrial wastewater contains many types of organic matter, a high proportion of synthetics, many organic poisons, and is not easy to biodegrade. The main pollutants in petroleum wastewater are various hydrocarbons—alkanes, naphthenes and aromatic hydrocarbons, among which polycyclic aromatic hydrocarbons are carcinogenic. [0003] Organic waste gas mainly comes from waste gas emitted during...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F1/32B01D53/02B01D53/86
Inventor 郑彤徐鑫王鹏马占峰
Owner HARBIN INST OF TECH
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