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Method for immobilizing CO2 by utilizing scytonema javanicum

A Pseudomonas algae and CO2 technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve problems such as affecting the health of workers, reducing work efficiency, endangering life and health, etc., and achieving permanent fixation and storage. , easy to operate, and the effect of reducing harm

Active Publication Date: 2013-09-04
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a confined space, due to the breathing of the staff and the operation of some equipment, the CO in the air in the confined space will be 2 The concentration is rising continuously, when the space CO 2 When the concentration is high, it will cause symptoms such as headache, dizziness, tinnitus, nausea, and vomiting, which will affect the health of the staff and reduce work efficiency. In severe cases, it will endanger life and health, leading to coma or even death

Method used

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  • Method for immobilizing CO2 by utilizing scytonema javanicum
  • Method for immobilizing CO2 by utilizing scytonema javanicum
  • Method for immobilizing CO2 by utilizing scytonema javanicum

Examples

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Embodiment 1

[0042] In this embodiment, a method for fixing CO by using the biological calcification of Pseudocladidae is provided 2 The method includes the following steps:

[0043] The first step: isolation, cultivation and domestication of Pseudobranchia.

[0044] Collect samples of algae colonies with Pseudocladus algae, culture them in BG11 liquid medium, gently peel apart the algae filaments with tweezers, separate the pseudocladus algae filaments, rinse them repeatedly with sterile water and transfer them to the sterilized BG11 liquid culture Base culture.

[0045] Before use, Pseudobranchia should be domesticated with a medium close to the state of biological calcified water. The medium for domestication of Pseudobranchia is a nutrient-poor liquid medium with a composition of 5.9mg / L Ca(NO 3 ) 2 ·4H 2 O,46.7mg / L NaNO 3 ,4.1mg / LK 2 HPO 4 ·3H 2 O,2.5mg / L MgSO 4 ·7H 2 O,168mg / L NaHCO 3 , 11.45mg / L Na-EDTA (Ethylenediaminetetraacetic acid disodium), 3mg / L FeSO 4 ·7H 2 O,248μg / L H 3 BO 3 ,135μ...

Embodiment 2

[0053] In this embodiment, a method for fixing CO by using the biological calcification of Pseudocladidae is provided 2 The method includes the following steps:

[0054] After separating, culturing and domesticating Pseudobranchia, the cell fluid of Pseudobranchia in logarithmic growth phase (concentration of 1×10 5 Cells) into a flat-bottomed glass bottle (volume 1.2L), under continuous light conditions (illuminance 4000lx), add a certain concentration of NaHCO to the algal cell solution 3 Solution, then add a certain concentration of CaCl to the solution 2 Solution, make the calcium ion concentration in the flat-bottom glass bottle 190mg / L, keep the temperature at about 20℃, the initial pH of the solution is 7.5-9, and continue to pour the solution containing CO 2 Gas (CO 2 The mass concentration is 0.4%), the gas flow rate is 30ml / min, and the process continues for 100h.

[0055] After the calcification process is over, filter the above-mentioned pseudomycosa cell liquid with a 0....

Embodiment 3

[0061] In this embodiment, a method for fixing CO by using the biological calcification of Pseudocladidae is provided 2 The method includes the following steps:

[0062] After separating, culturing and domesticating Pseudobranchia, the cell fluid of Pseudobranchia in logarithmic growth phase (concentration of 1×10 8 Cells) into a flat-bottomed glass bottle (volume 1.2L), under continuous light conditions (illuminance 5000lx), add a certain concentration of NaHCO to the algal cell solution 3 Solution, then add a certain concentration of CaCl to the solution 2 Solution, make the calcium ion concentration in the flat-bottom glass bottle 150mg / L, keep the temperature at about 25℃, the initial pH of the solution is 7.5-9, and continue to pour the solution containing CO 2 Gas (CO 2 The mass concentration is 0.4%), the gas flow rate is 30ml / min, and the process continues for 100h.

[0063] After the calcification process is over, filter the above-mentioned pseudomycosa cell liquid with a 0....

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Abstract

The invention provides a method for immobilizing CO2 by utilizing scytonema javanicum. The method comprises the following steps of: ventilating a gas containing CO2 to a scytonema javanicum solution; adding a certain amount of calcium ion solution; and promoting Ca<2+> and CO3<2-> in water to be combined to generate CaCO3 precipitates, so that CO2 in the gas is immobilized. The method for immobilizing CO2 by utilizing scytonema javanicum can be used for realizing permanent immobilization of CO2; the scytonema javanicum exists extensively in the nature and is easily available; and CO2 is immobilized by utilizing the scytonema javanicum, so that the effective utilization of organisms can be realized. Meanwhile, CO2 further can be absorbed by photosynthesis of the scytonema javanicum to increase the removing rate. The method for immobilizing CO2 disclosed by the invention is simple to operate, low in cost and good in environmental significance.

Description

Technical field [0001] This invention belongs to CO 2 The technical field of immobilization, specifically related to a method of using Pseudocladus to fix CO 2 The method is suitable for CO in confined spaces such as submarines, aircraft, space stations, and semi-closed spaces such as high-speed railways and air-conditioned trains. 2 Removal. Background technique [0002] Carbon dioxide (CO 2 ) Is one of the most important man-made greenhouse gases. Excessive emissions of greenhouse gases have disrupted the natural ecological balance, causing global temperature rise, sea level rise, loss of biodiversity, frequent occurrences of extreme catastrophic climates such as droughts, fires, heat waves, and storms, ultimately leading to changes in the ecosystem and serious Affect human activities. In a confined space, due to the breathing of staff and the operation of some equipment, CO in the air in the confined space 2 The concentration continues to rise, when CO in the space 2 When the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/84B01D53/62
CPCY02A50/20
Inventor 李晓敏刘菲范文宏
Owner BEIHANG UNIV