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A method for fixing CO2 by using Pseudocladon algae

A pseudocladon, CO2 technology, applied in separation methods, chemical instruments and methods, dispersed particle separation, etc., can solve problems affecting the health of workers, reduce work efficiency, endanger life and health, etc., and achieve permanent fixation and storage , easy operation, and the effect of reducing harm

Active Publication Date: 2016-03-02
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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  • A method for fixing CO2 by using Pseudocladon algae
  • A method for fixing CO2 by using Pseudocladon algae
  • A method for fixing CO2 by using Pseudocladon algae

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Embodiment 1

[0042] In this embodiment, a method for fixing CO by using Pseudocladon algae biological calcification is provided. 2 method, including the following steps:

[0043] Step 1: Isolation, cultivation and domestication of Pseudocladoma.

[0044] Collect samples of the algae community with Pseudocladonium, cultivate them in BG11 liquid medium, gently peel off and separate the algae filaments with tweezers, separate the pseudocladonium filaments, rinse them repeatedly with sterile water, and transfer them to sterilized BG11 liquid culture medium cultured in the base.

[0045] Pseudocladonium should be domesticated with a medium close to the state of biological calcified water before use. The medium for domesticating Pseudocladonium is an oligotrophic liquid medium with a composition of 5.9mg / LCa (NO 3 ) 2 4H 2 O,46.7mg / LNaNO 3 ,4.1mg / LK 2 HPO 4 ·3H 2 O,2.5mg / LMgSO 4 ·7H 2 O,168mg / LNaHCO 3 ,11.45mg / LNa-EDTA (disodium ethylenediaminetetraacetate), 3mg / LFeSO 4 ·7H 2 O,248μ...

Embodiment 2

[0053] In this embodiment, a method for fixing CO by using Pseudocladon algae biological calcification is provided. 2 method, including the following steps:

[0054] After separating, cultivating and domesticating Pseudomonas algae, the Pseudomonas algae cell fluid in the 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 algae cell liquid 3 solution, and then add a certain concentration of CaCl to the solution 2 Solution, so that the calcium ion concentration in the flat-bottomed glass bottle is 190mg / L, keep the temperature at about 20°C, and the initial pH value of the solution is 7.5-9, and continuously pass through 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 ab...

Embodiment 3

[0061] In this embodiment, a method for fixing CO by using Pseudocladon algae biological calcification is provided. 2 method, including the following steps:

[0062] After separating, cultivating and domesticating Pseudomonas algae, the Pseudomonas algae cell fluid in the 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 algae cell liquid 3 solution, and then add a certain concentration of CaCl to the solution 2 Solution, so that the calcium ion concentration in the flat-bottomed glass bottle is 150mg / L, keep the temperature at about 25°C, and the initial pH value of the solution is 7.5-9, and continuously pass through 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 ab...

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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] The invention belongs to CO 2 Fixed technical field, be specifically related to a kind of utilizing Pseudocladon algae to fix CO 2 The method is suitable for CO in confined spaces such as submarines, aircrafts, and space stations, as well as in semi-enclosed spaces such as high-speed rail and air-conditioned trains. 2 removal. Background technique [0002] carbon dioxide (CO 2 ) is one of the most important anthropogenic greenhouse gases. Excessive emissions of greenhouse gases have destroyed the natural ecological balance, causing global temperature rise, sea level rise, biodiversity loss, droughts, fires, heat waves, storms and other extreme disastrous climates to occur frequently, eventually leading to changes in ecosystems, serious affect human activities. 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 ...

Claims

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Application Information

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