Banca de DEFESA: ÁTALA REBECA DA SILVA ÁVILA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : ÁTALA REBECA DA SILVA ÁVILA
DATE: 23/02/2023
TIME: 09:00
LOCAL: Pós-Graduação Engenharia Civil
TITLE:

Use of the Nutrients Contained in Treated Wastewater and Sludge for the Production of Essential Oils

KEY WORDS:

biosolids; domestic wastewater; Ocimum basilicum; yield; secondary metabolism products; hydrodistillation

PAGES: 96
BIG AREA: Engenharias
AREA: Engenharia Civil
SUMMARY:

Prolonged drought events and the need to reduce the use of mineral fertilizers have led farmers to seek more sustainable alternative cultivation techniques, among which is the use of treated wastewater and sanitized sludge in fertigation and organic fertilization, respectively, of crops. Aromatic herbs produce essential oils that are widely used in the industrial sector, in food, and in therapeutic treatments. Basil (Ocimum basilicum) is a world-renowned herb belonging to the Lamiaceae family. Basil leaves are employed in folk medicine as a remedy for various ailments, such as diarrhea, nausea, pain, and bronchitis. In addition, the essential oil extracted from basil contains active constituents with antioxidant, anti-inflammatory, and antimicrobial properties. Brazil is the leader in the exportation ranking of essential oil in volume. The objective of this research was to analyze the influence of the cultivation of basil limoncino in poorly fertile soil irrigated with treated wastewater and fertilized with sanitized sludge, in relation to the production and chemical composition of its essential oil. The experimental design was in randomized blocks and the planting took place in a greenhouse. A nutrient-poor soil was used and traditional chemical fertilization was performed for a control treatment and fertilization with sanitized sludge (biosolids). Irrigation management was done by checking soil moisture by matricial potential, using puncture tensiometers, using treated sewage and water supply. The plants were harvested 91 days after sowing, and the essential oil was extracted from the basil leaves by hydrodistillation using a Clevenger apparatus. From the analysis of the results of nutritional composition, morphology, health, yield and composition of the essential oil of basil leaves, it can be said that the use of treated wastewater and biosolids are a way to reduce spending on chemical fertilizers and contribute to sustainable agricultural management, since part of the parameters studied remained linear while others improved compared to traditional basil cultivation.

COMMITTEE MEMBERS:
Presidente - 3133998 - BRUNA SCANDOLARA MAGNUS
Externa ao Programa - 1761999 - KENIA KELLY BARROS DA SILVA - nullExterno à Instituição - RONALDO STEFANUTTI - UFC