Purifying method of removing bacteria and organic compound in heavy oxygen water

A purification treatment and heavy oxygen water technology, applied in the direction of light water/sewage treatment, heating water/sewage treatment, etc., can solve the difficulties in the post-treatment process, increase the ion concentration of heavy oxygen aquatic products, and reduce the heavy oxygen of heavy oxygen aquatic products Abundance and other issues

Inactive Publication Date: 2008-09-10
SHANGHAI RES INST OF CHEM IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Usually we can sterilize water by adding agents: such as hypochlorous acid, passing through ozone, etc., but these methods will increase the ion concentration of heavy oxygen water products and cause difficulties in the post-treatment process, or introduce 16 O atoms can cause the exchange and fractionation of oxygen isotopes, which can significantly reduce the heavy oxygen (heavy oxygen) of heavy oxygen aquatic products ( 18 O) Abundance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The industrially produced heavy oxygen water has an abundance of 97.2%, a bacterial content of 10 / ml, and a total organic carbon (TOC) content of 12ppm. After being irradiated with 185nm ultraviolet light, the heavy oxygen water stays for 15 minutes, and passes through a pore diameter of 0.3 microns. PVDF (polyvinylidene fluoride) microporous membrane filtration, high-purity argon (Ar) protected distillation device, the bacterial content of the product heavy oxygen water is less than 1 / ml, the total organic carbon (TOC) content is 10ppb, and the product is abundant Degree 97.1%.

Embodiment 2

[0035] Industrially produced heavy oxygen water has an abundance of 95.8%, a bacterial content of 25 / ml, and a total organic carbon content of 800ppm. After being irradiated with 254 nm ultraviolet light, the heavy oxygen water has a residence time of 30 minutes. Vinylidene fluoride) microporous membrane filtration, high-purity argon (Ar) protected distillation device, the bacterial content of the product heavy oxygen water is less than 1 / ml, the total organic carbon content is 120ppm, and the product abundance is 95.8%.

Embodiment 3

[0037] The industrially produced heavy oxygen water has an abundance of 99.3%, a bacterial content of 18 / ml, and a total organic carbon content of 350ppm. After being irradiated with dual-wavelength ultraviolet light of 185 nm and 254 nm, the heavy oxygen water stays for 20 minutes. 0.45 micron PTFE (polytetrafluoroethylene) microporous membrane filter, high-purity nitrogen (N 2 ) protected distillation device, the bacterial content of the product heavy oxygen water is less than 1 / ml, the total organic carbon content is 80ppm, and the product abundance is 99.2%.

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Abstract

The invention discloses a purifying disposing method of bacteria and organism in the multi-oxygen water, which comprises the following steps: irradiating through ultraviolet; filtering through filter membrane; distilling to remove impurity. The method guarantees the abundance of multi-oxygen (18O) in the disposing course, which reduces organic carbon content in the multi-oxygen water.

Description

technical field [0001] The present invention relates to a tracer-heavy oxygen water (H 2 18 O) purification treatment process. Background technique [0002] Oxygen in nature has three stable isotopes, their mass numbers are 16, 17, and 18, and their abundances in natural water are 99.76%, 0.04%, and 0.2% atoms respectively. in 16 O is an ordinary oxygen element, 18 O. 17 O is a heavy oxygen element. [0003] Heavy oxygen water (H 2 18 O) is heavy oxygen ( 18 Hydrides of O) isotopes, which have the same properties as ordinary water (H 2 16 O) same physicochemical properties, but heavy oxygen ( 18 O) elements can be used as trace elements, making heavy oxygen water (H 2 18 O) can be used as a tracer and widely used in nuclear medicine imaging, medicine, biomedicine, environment, chemistry, life science and other fields. [0004] Heavy oxygen water (H 2 18 O) is a positron imaging drug necessary for positron emission computed tomography (Positron Emission Comput...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/32C02F1/04
Inventor 肖斌伍昭化陈代传秦川江姜永悦张丽雅周建耀
Owner SHANGHAI RES INST OF CHEM IND
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