1. Because we do an efficient use of resources. We produce biogas from anaerobically digested organic matter which then is burnt to generate electricity (for paddle wheels, light, harvesting and drying process).

  2. We use the anaerobic digestion effluent as a source of nutrients for the algae to grow.

  3. As with all photosynthetic organisms, algae use CO2 as a carbon source. Natural dissolution of CO2 from air into the water is not enough so we will bubble flue gas emitted from a thermal power station into our algae cultures to improve productivity and to reduce CO2 emission since this gas is considered to be one of the main causes of the global warming problem.

  4. We water the surrounding park with rain water collected with special devices.

  5. To build the charge and discharge area we used waste material from a steel-making plant next to our plant.

  6. We do not use water to wash and purification of biodiesel. We do not use water at all. Instead of that, we use ion exchange resins for the pretratement of the oil and post-treatment of biodiesel.

  7. Once the ion Exchange resins cannot be used anymore, we spread it in the charge and discharge area, were the waste steel-making material is. When the mixture is heated, a carpet similar to the asphalt but more resistant is created without using non renewable resources.

  8. At first we used metal structure to build our greenhouses but as they were ruined by the algae growth medium, we decided to use recycled plastic . It is not only environmental friendly but also more resistant.

  9. To transesterificate the fatty acids with an alcohol and produce biodiesel, a catalyze is prepared mixing sodium hydroxide with methanol. To avoid human manipulation of the solvents, we prefer to use sodium metilate already prepared to minimize risks.

  10. After harvesting the algae, the water from the culture medium is potable for human comsumption.

  11. After oil extraction from the algae sludge, the remaining biomass can be used for animal o human consumption after bacteriological analisis.

  12. To grow algae at night, we use artificial Light (LED) which have high efficiency and low cost and consumption of energy.

  13. The biodiesel plant is totally automatic, to avoid human contact with potentially dangerous solvents like methanol. In the production area, a robot with sensors is able to gather information of gases, temperature, valves and pumps on real-time.

  14. Because of their particular features our greenhouses could be considered as photobiorreactors due to our special technology developed (registered). It's high productivity is similar to mixotrophic photobiorreactors. These include steering paddles wheels, harvesting and nutrient replacement devices and light dispersion giving priority to the most efficient and low cost technologies.