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A kind of deoxygenation method of combined use of deoxygenation compound agent/uv

An oxygen recombination and medicament technology, which is applied in separation methods, chemical instruments and methods, water/sewage treatment, etc., can solve the problems of heavy metals and slow oxygen removal rate, slow oxygen removal rate, expensive catalyst, etc., to achieve no Toxic and harmless formula, fast oxygen removal rate, and the effect of saving dosage

Inactive Publication Date: 2011-12-21
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of expensive equipment, complex operation and slow deoxygenation rate in the existing physical method deoxygenation technology, and the chemical method deoxygenation technology has the problems of expensive catalyst, large dosage, heavy metal content and slow deoxygenation rate problem, and provides a deoxygenation technology method combined with deoxygenation compound agent / UV

Method used

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  • A kind of deoxygenation method of combined use of deoxygenation compound agent/uv

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specific Embodiment approach 1

[0015]Specific Embodiment 1: The deoxygenation method of this embodiment combined with oxygen-scavenging compound agent / UV is carried out in the following manner: add oxygen-scavenging compound agent (ORC) to the reaction system, and then irradiate with ultraviolet UV light to complete the oxygen-scavenging process ; Wherein the oxygen-scavenging composite agent is composed of sodium sulfite, lithium sulfite, potassium sulfite, magnesium sulfite, calcium sulfite, ammonium sulfite, sulfurous acid, sodium pyrosulfite, lithium pyrosulfite, potassium pyrosulfite, magnesium pyrosulfite, Calcium dithionite, ammonium dithionite, sodium dithionite, lithium dithionite, potassium dithionite, magnesium dithionite, calcium dithionite, ammonium dithionite, sodium nitrite, nitrous acid Potassium, ammonium nitrite, sodium nitrate, potassium nitrate, ammonium nitrate, sodium azide, potassium azide, ammonium azide, sodium hydroxide, potassium hydroxide, potassium iodide, sodium iodide, magnesiu...

specific Embodiment approach 2

[0022] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the reaction system is industrial water supply, boiler water supply, air used in the food industry, air and water used in the petrochemical industry, water used in the textile industry, and used in the metallurgical industry. The air and water used in the electronics industry, the air and water used in the anaerobic sewage treatment industry. Others are the same as in the first embodiment.

[0023] In this embodiment, the reaction system should have better penetrability, and it is required to have less particulate matter in the reaction system, that is, less dust in the air and good visibility; less particulate matter in the water body, or turbidity < 1NTU.

[0024] In this embodiment, oxygen refers to oxygen in any concentration range, and the temperature, partial pressure and other physical and chemical properties of oxygen are not limited.

specific Embodiment approach 3

[0025] Specific embodiment three: the difference between this embodiment and specific embodiment one is that the ultraviolet UV light irradiation adopts a light source with emission wavelength<400nm, and the light source is a low-pressure mercury lamp, a medium-pressure mercury lamp, a high-pressure mercury lamp, an amalgam ultraviolet lamp, a vacuum lamp, etc. UV lamp, halogen lamp, black lamp or xenon lamp. Others are the same as in the first embodiment.

[0026] In this embodiment, the light source needs to be equipped with appropriate electrical control equipment and power supply.

[0027] In this embodiment, the power of ultraviolet UV light irradiation can be selected arbitrarily, and it needs to be determined according to the actual needs of the system (system oxygen concentration, oxygen removal rate and operating cost).

[0028] In this embodiment, the ultraviolet UV light irradiation adopts the immersion type or the surface irradiation type; if the immersion type is...

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Abstract

The invention relates to a deoxygenation method combined with deoxygenation compound agent / UV, which relates to a deoxygenation method. It solves the problems of expensive equipment, complicated operation and slow deoxygenation rate in the existing physical deoxygenation technology, and the problems of expensive catalyst, large dosage, heavy metal content and slow deoxygenation rate in the chemical deoxygenation technology. Method: Add oxygen-removing compound agent to the reaction system, and then irradiate with ultraviolet light to complete the oxygen-removal. The invention can efficiently and stably remove dissolved oxygen in air and water, does not require expensive equipment and components, is simple and safe to operate, has a fast deoxygenation rate, does not require expensive catalysts, does not contain heavy metals, and has a small dosage. Cost saving, less impact on water quality, no special requirements on water quality indicators such as air impurities in the reaction system, pH value, temperature, salinity and organic matter in the water body, so it can be widely used in air and water oxygen removal.

Description

technical field [0001] The invention relates to a method for removing oxygen. Background technique [0002] About 21% of oxygen (O 2 ), is a substance with active chemical properties and strong oxidation ability. It can undergo oxidation-reduction reactions with many substances such as metals, non-metals, and organic substances to oxidize metals and decompose organic substances to form more stable oxidation products or precipitates. When oxygen in the air is dissolved in water to form dissolved oxygen, it is also easy to react with metals, etc. to form oxides. Due to the strong oxidation ability of oxygen, many industries, such as industrial water supply, boiler water supply, food, petrochemical, textile, metallurgy, electronics, sewage anaerobic treatment and other industries, need to remove dissolved oxygen in the air or water. [0003] At present, oxygen removal technology mainly includes physical method and chemical method. Among them, physical deoxygenation includes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/74B01D53/46C02F1/58
Inventor 马军李旭春刘桂芳关英红陈丽玮方晶云张静
Owner HARBIN INST OF TECH
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