Criteria for the selection of species of micro algae
Basically the reactions and equations of photosynthesis oxidative stress is common to most terrestrial plants and marine, but the uniqueness of the BFS system is that, agencies using waste no time in forming any kind of structure (roots, stems, leaves, flowers, etc.., etc.) non-productive from the standpoint of trophic (not performed or do not with equal intensity, the Calvin cycle). Celled exactly the condition makes the individual can be considered more or less directly productive (as a unit), simply because the concentration of energy (or directly usable) can be expressed as an absolute percentage of the individual.
The above singularity can not reflect it (At least in absolute terms) in any other agency does not meet the condition of single-celled. Discosphaera
tubifera is another heterococolitofórido that forms part of marine phytoplankton. As all of them a very efficient body of CO2 fixation, and the production of fatty compounds to maintain their buoyancy.
The biomass production system developed by BFS and energy in cooperation with the University of Alicante is a pioneer to base its strategy on the following characteristics:
1. Gets the energy resources of the base of the aquatic food chain, an area that accounts for 100% of incoming energy (unicellular autotrophs).
2. The bodies are the most efficient use, energy, the total life on Earth. Uses only single-celled autotrophs Preferred Player mitotic (asexual).
3. Prioritize the use of phytoplankton species with the surface / volume ratio (r2/r3) favored. Scavenging efficiency of light, nutrient and CO2 is higher.
4. For optimal use the CO2 production that occurs in all agricultural, industrial, livestock and human activities in general. IS THE ONLY ENERGY PRODUCTION PROCESS OF COMPOUNDS THAT DOES NOT INCREASE AND effectively reduce the atmospheric concentration of CO2
5. All products which may be obtained from BFS production process are useful, sustainable, clean and economical. Our final residue tends to "0." Basically
develop eukaryotic microalgae cultures in photobioreactors vertical cylindrical. This system allows us to accumulate up to 3 m3 of water per m2 production area occupied. Compared to conventional systems, arranged in horizontal pipes, there is a noticeable difference in the amount of water collected per m2. Usually in conventional systems are not exceeded 150 to 250 l / m 2, which when compared to the output range of 1.0 to 3.0 g / l of dry biomass per day, the output gap is between 12 and 20 times higher than other systems of microalgal biomass production.
The most important factor is the election system of microalgae. As a general rule we demand that the species we will use a set of criteria or conditions that we consider essential: a.
Universality. We used phytoplankton species of wide geographic distribution. This means that the species will be eurythermic, and generally resistant to weather conditions oscillating. This criterion is vital in latitudes with pronounced seasonality. B.
Particularity. When we ask facilities in geographic areas with extreme weather (very hot or very cold climates generally homeothermic) work with native species. C.
r-strategists. We normally use opportunistic species survival strategy known as type r. ecology They are especially effective and efficient uptake of nutrients and light. When used in intensive crops respond well (high reproductive rate) in aqueous non-limiting from the nutritional point of view, and control / limit the development of microalgal and bacterial populations unwanted crops. D.
Euryhalinity. Euryhaline preferably selected with a high degree of tolerance to fluctuations salinity. In an intensive than the ha, especially in latitudes with marked seasonality is difficult and costly to ensure stability in the salt concentration of the system (especially in carbonate salts). E.
Wide tolerance to photoinhibition. We use species that are not usually overly sun-loving and than shadow tolerating, but for most areas with marked seasonality and the breeder is a character heliofilia. F.
Surface / volume ratio (S / V or r2/r3). Species normally use less than 10.0 microns in ø Cell. Work preferably in the range: 1.0 - 5.0 microns of cell ø. They are more efficient in capturing light and nutrients. G.
Holoplanktonic. Strictly planktonic species. Less possibility of fouling (adhesions).
h. Minimum Value calorimeter 4000 cal / gr. Normally we select those that are in the range of 5,000 to 5,700 cal / gr. I.
Division rate of 0.5 - 1.5 div / day. J.
Resistance to physical systems of culture: The culture is always in continuous flow, and crop species pass and pass through different stages pulldown very aggressive mechanical point of view: a.
Pumping Systems / Drive
b. Antifouling systems
c. D.
Filtration Systems K.
extraction systems High tolerance levels O2 high. Cultivated species are photosynthetically active, and thus produce large amounts of O2, it usually is toxic above 14 mg / l.
l. High tolerance to high concentrations of CO2 and NOx. The culture was performed using combustion gases at concentrations of between 8 to 18% CO2 and up to 70% NOx.
When we talk about biofuels derived from living organisms, especially of autotrophs (99.9% of total), we can not help thinking of crops. Basically these are of two types: a.
Carried herbaceous. Sunflower, soybean, rapeseed, etc. Maximum 2 YEAR crops, and usually a. B.
Carried tree. Palma, Olive, Castor, Avocado, etc. Except in the case of ricin (2 years) the remaining exploitable plant trees usually need 4 years to give the first fruit (only part exploitable).
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