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Energy-saving waste gas treatment method and apparatus thereof

A waste gas treatment device and waste gas treatment technology are applied in the direction of ion exchange treatment devices, separation methods, chemical instruments and methods, etc., which can solve the problems of affecting the cooling water heating system, heavy pressure, cross-contamination, etc., and improve the use of equipment High efficiency, low resistance, and energy-saving effects

Inactive Publication Date: 2014-04-09
MEIZHOU JINCHUAN MEDICAL WASTE CENTIZED TREATMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a large number of laboratory waste gas treatment devices and fans are placed on the roof, the heavy pressure on the entire roof will be great, and it will cause cross-contamination, affecting cooling water or heating systems, etc.
In the traditional laboratory exhaust gas treatment method, in order to ensure that the gas in the fume hood does not diffuse into the laboratory, sufficient wind speed must be ensured, resulting in a large exhaust air volume. Generally, the air volume of a fume hood is 1200-2100m 3 / h, the air volume is large, in the same pipeline, the resistance is large and the energy consumption is high

Method used

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  • Energy-saving waste gas treatment method and apparatus thereof
  • Energy-saving waste gas treatment method and apparatus thereof
  • Energy-saving waste gas treatment method and apparatus thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. Target experimental exhaust gas

[0047] Treatment of waste gas from nitric acid heating process, the main pollutants are nitrogen oxides. During the experiment, three nitric acid beakers were heated at the same time, and the volatilization of nitrogen oxides was 210mg / m 3 , the discharge of the fume hood is 1700m 3 / h.

[0048] 2. Process parameters

[0049] use as figure 2 and image 3 For the shown device, the specific process parameters are as follows:

[0050] (1) Ion exchange resin membrane 3: The effective filtration area is 2.25m 2 , consisting of two pieces. It is Clean-Q501 ion exchange resin membrane with a thickness of 5mm.

[0051] (2) Activated carbon fiber adsorption layer 3: effective filtration area 1.5m 2 , which is composed of four activated carbon fiber adsorption layers, which is ordinary activated carbon fiber.

[0052] (3) Nanophotocatalytic device: size: 500*300*150mm, ceramic solid-carrying material per 100*100*50mm; ultraviolet la...

Embodiment 2

[0058] 1. Target experimental exhaust gas

[0059] The formaldehyde is heated, and the three formaldehyde reactions are carried out simultaneously.

[0060] 2. Process parameters

[0061] use as figure 2 and image 3 For the shown device, the specific process parameters are as follows:

[0062] (1) Ion exchange resin membrane 3: The effective filtration area is 2.25m 2 , consisting of two pieces. It is Clean-Q501 ion exchange resin membrane with a thickness of 5mm.

[0063] (2) Activated carbon fiber adsorption layer 3: effective filtration area 1.5m 2 , which consists of four activated carbon fiber adsorption layers, which are ordinary activated carbon fibers.

[0064] (3) Nanophotocatalytic device: size: 500*300*150mm, ceramic solid-carrying material per 100*100*50mm; ultraviolet lamps, 4, 245nm; bismuth vanadate usage 10g, rhenium oxide usage 0.3g.

[0065] (4) The recycled gas ratio is 50%.

[0066] It is found through experimental testing that the treatment effi...

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Abstract

The invention belongs to the field of waste gas treatment, and specifically discloses an energy-saving waste gas treatment method and an apparatus thereof. According to the energy-saving waste gas treatment method, in a fuming cupboard, the waste gas is successively subjected to ion exchange resin membrane absorption, and photocatalytic decomposition and absorption of an activated carbon fiber adsorbed layer and a mixed catalyst of nano pucherite and rhenium oxide; and part of the processed waste gas is reused using a booster pump. The apparatus comprises an electric control system, an ion exchange resin membrane, the activated carbon fiber adsorbed layer, a photocatalytic device, a ventilation system, a waste gas recycling system, and a drainage system; the energy-saving waste gas treatment apparatus comprises the ion exchange resin membrane, the activated carbon fiber adsorbed layer, and the nano photocatalytic device which are connected successively. The energy-saving waste gas treatment method and the apparatus can be widely used in treatment of various waste gas and fuming cupboards of laboratories.

Description

technical field [0001] The invention relates to a waste gas treatment method, in particular to an energy-saving laboratory waste gas treatment method and device attached to a fume hood. Background technique [0002] In social development, science and technology play an increasingly important role, and science and technology are the key factors that determine productivity. At present, not only scientific research institutes and schools are engaged in scientific research, but enterprises are also investing more and more funds in scientific research. During the experiment, harmful substances are often encountered, such as nitric acid, hydrochloric acid, perchloric acid, amines, formaldehyde, benzene series, harmful bacteria, etc. Some experiments even involved highly toxic chemicals, such as cyanide. To protect the safety of researchers, these experiments must be performed in a fume hood. However, ordinary fume hoods do not have the function of exhaust gas treatment. If thes...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/75B01J47/12B01D53/86
Inventor 周瑞兴梁炜温镜忠温镜新王瑞敏赵惊鸿王宁彭坤
Owner MEIZHOU JINCHUAN MEDICAL WASTE CENTIZED TREATMENT CO LTD
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