With CO2 recovered from waste incineration, the photosynthesis process is promoted

In Madrid the umpteenth oceanic gathering of young and old went on the stage , led by Greta, in conjunction with the Cop25 meeting , which revealed a resounding rejection of environmental aspirations, promoted by the square, by of a group of countries that attended the meeting.

With a series of postponements of the decisions to be taken , regarding the cutting and credits of CO2, to the Fund for damage caused by climate change and the ratification of the commitments made regarding the Paris agreement, some blocks were outlined composed of states with completely different environmental visions:

Who does not want to change things , indeed, like the United States , want to get out of the Paris agreement to have a free hand in managing the pollution process. In this block we can also include Saudi Arabia, Australia, Brazil and Russia who do not want further cuts on CO2 emissions.

Who is working to respect the limits imposed in Paris , first of all the European Union , which seems to be the only one that is committing itself to take seriously the problem of climate change . Within his group, however, there are countries in the Eastern bloc, led by Poland , whose economies are still profoundly linked to the use of coal and which, therefore, are hostile to further downward revisions of emission limits.

Who is at the window without making substantial decisions, such as China and India, whose economic market is strongly linked to the lax management of environmental regulations ( emissions, waste, recycling, reuse, industrial and urban waste).

Meanwhile, Europe, perhaps chatting less, under the push of environmental parliamentary directives, has released a series of proactive energies, both entrepreneurial and academic, that they want to study and exploit new ideas in the field of waste management and savings energy.

One of these involves the recovery of the CO2 that is generated by the incineration of non-recyclable waste , for civil use. This operation has undoubted direct and indirect advantages:

The waste incineration operation, which would go to landfill, does not create CO2 emissions in the environment as it is completely recovered and reused.

With the incineration activity, electricity and heating can be supplied to the cities surrounding the plant, solving the problem of local waste.

The CO2 recovered is used , among other things, for agricultural activities , at certain times of the year and to reduce the costs of managing the plant.

But how does this application take place in the agricultural field?

The fumes produced by the combustion of urban waste have a carbon dioxide content ranging between 5 and 20%, as well as other types of gases such as oxygen, sulfur oxides, nitrogen oxides and various dust fractions.

These fumes are conveyed to a specific plant that has the purpose of separating the CO2 from the other elements , so as to start the carbon dioxide sterilization process, which will be obtained at the end of the treatment cycle, so as to make it usable for industrial uses. and food.

This separation takes place by passing the fumes in a solvent that has the purpose of absorbing the CO2 and rejecting the other components. The solution, solvent + CO2, is started in another plant that has the purpose of boiling the solution so as to separate the solvent again, which will be part of the production cycle, from CO2 in the form of gas.

The gaseous carbon dioxide will pass into another purification plant and, through a series of filters, it will finish the gas purification process, then moving on to the CO2 compression phase to bring it to a liquid consistency.

This new liquid element will then be stored and started in greenhouses to facilitate the growth process of flowers, plants and fruits . In fact, this process is influenced by temperature, light, water and CO2 absorbed by plants.

But among all the elements mentioned above, it is precisely the increase in the concentration of CO2 that drastically influences the photosynthesis process , in fact an increase in carbon dioxide twice the natural concentrations will lead to a greater development of the plant by about 15 -20%, other nutritional parameters being equal.

The so-called carbonic fertilization generates an increase in the growth of many plant species, but the most evident results are seen in the increase in product quality and the reduction of production cycles.

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