| Autor: |
da Silva Szarblewski, Mateus, Alves, Giséle, Heinrich, Carla Giselda, Dupont, Adriana, Lobo, Eduardo A., Benitez, Lisianne Brittes, de Cassia de Souza Schneider, Rosana, Rizzetti, Tiele Medianeira |
| Zdroj: |
Sustainable Water Resources Management; June 2023, Vol. 9 Issue: 3 |
| Abstrakt: |
The main objective of this research was to evaluate the behavior of an ATS system, analyzing the microalgae taxa and biomass produced under different concentrations of nutrients. A fertilizer solution containing NPK (nitrogen, phosphorus, and potassium) in the concentrations of 1, 2, 3, 4, and 5 g L−1was used. The highest biomass productivity, 13.3 ± 2.5 g m−2days−1, was found using 5 g L−1of NPK. The maximum lipid content found was 9.6 ± 1.4% (w/w) and, among the fatty acids identified, palmitic acid is found in greater abundance (35.1 ± 9.4%). The productivity potential of the oil was estimated at 2,865 L ha−1year−1. The carbohydrate concentration was 23.0 ± 2.5% (w/w) and no statistical differences (p> 0.05) were observed between the fatty acids composition and the carbohydrate content between the samples. The productivity of the periphyton showed a positive correlation with the concentration of nutrients that enter the system. In contrast, the concentration of carbohydrates found in the biomass remained stable at all of the nutrient rates studied. The microalgae evaluation identified that most of the taxa found belong to the class Bacillariophyceae (diatoms). |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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