Method for promoting microalga growth and oil production by utilizing iron element in flue gas of coal-fired power plant
A coal-fired power plant, iron element technology, applied in the field of microalgae biotechnology and resource recycling, can solve the problems of affecting the growth of microalgae, the decline of microalgae biomass yield, and the adverse effects of microalgae cultivation, so as to promote oil production The effect of increasing the amount and oil production efficiency, promoting improvement, and improving growth and yield
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[0027]Example 1
[0028]A method for transforming and utilizing iron in the flue gas of coal-fired power plants to promote the growth of microalgae and oil production includes the following steps:
[0029](1) In the process of microalgae cultivation, the fly ash particles in the flue gas are washed and collected;
[0030](2) Add hydrochloric acid to the washed fly ash particles to perform a reaction to convert the iron oxide particles into trivalent iron ions that can be absorbed and utilized by microalgae;
[0031](3) Take the solution after the reaction in step (2) and add a complexing agent to convert iron into complexed iron;
[0032](4) Add the solution obtained in step (3) to the microalgae culture medium to promote the growth and oil production of microalgae.
[0033]In step (2), the concentration of hydrochloric acid is 2.0 mol / L, specifically: at the beginning of the reaction in step (2), 5 ml of 2.0 mol / L hydrochloric acid is added to the reaction system.
[0034]The nano-iron trioxide and sil...
Example Embodiment
[0046]Example 2
[0047]A method for transforming and utilizing iron in the flue gas of coal-fired power plants to promote the growth of microalgae and oil production includes the following steps:
[0048](1) In the process of microalgae cultivation, the fly ash particles in the flue gas are washed and collected;
[0049](2) Add hydrochloric acid to the washed fly ash particles to perform a reaction to convert the iron oxide particles into trivalent iron ions that can be absorbed and utilized by microalgae;
[0050](3) Take the solution after the reaction in step (2) and add a complexing agent to convert iron into complexed iron;
[0051](4) Add the solution obtained in step (3) to the microalgae culture medium to promote the growth and oil production of microalgae.
[0052]The nano-iron trioxide and silica particles are mixed to simulate the fly ash in the flue gas, and the nano-iron trioxide is used to simulate the oxidized iron in the flue gas; take 0.5g of fly ash, of which the iron trioxide is T...
Example Embodiment
[0065]Example 3
[0066]A method for transforming and utilizing iron in the flue gas of coal-fired power plants to promote the growth of microalgae and oil production includes the following steps:
[0067](1) In the process of microalgae cultivation, the fly ash particles in the flue gas are washed and collected;
[0068](2) Add hydrochloric acid to the washed fly ash particles to perform a reaction to convert the iron oxide particles into trivalent iron ions that can be absorbed and utilized by microalgae;
[0069](3) Take the solution after the reaction in step (2) and add a complexing agent to convert iron into complexed iron;
[0070](4) Add the solution obtained in step (3) to the microalgae culture medium to promote the growth and oil production of microalgae.
[0071]The nano-iron trioxide and silica particles are mixed to simulate the fly ash in the flue gas, and the nano-iron trioxide is used to simulate the oxidized iron in the flue gas; take 0.5g of fly ash, of which the iron trioxide is T...
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