Banca de DEFESA: MARIA VITÓRIA E SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MARIA VITÓRIA E SILVA
DATE: 25/02/2026
TIME: 08:00
LOCAL: Sala de Aula 01 do PPEAMB, 1º andar do Prédio Antônio Coelho, do Departamento de Tecnologia Rural
TITLE:

Use of the microalga Desmodesmus armatus in the treatment of agroindustrial and biorefinery effluent

KEY WORDS:

Aquaculture, Bioremediation, Nitrogen removal, Protein, Biotechnological potential

PAGES: 89
BIG AREA: Engenharias
AREA: Engenharia Sanitária
SUMMARY:

The present study evaluates the potential of the microalga Desmodesmus armatus for the treatment of aquaculture effluents, integrating nutrient bioremediation with biomass valorization under the perspective of the circular economy and the biorefinery concept. The study is developed through two complementary approaches. The first consists of a scientometric analysis of the scientific production related to the genera Desmodesmus and Scenedesmus applied to wastewater treatment and biotechnological biomass utilization, based on articles indexed in the Scopus database published between 1988 and 2024. The results demonstrate a significant increase in publications from 2010 onwards, associated with the consolidation of microalgal bioremediation and the integration with biomass valorization processes. China, European countries, and Latin America stand out as relevant research hubs, with a focus on the treatment of agro-industrial, urban, and aquaculture effluents. Keyword co-occurrence analysis identifies four main thematic axes: bioremediation, nutrient dynamics, biofuel production, and biomass biochemical composition, while also highlighting gaps related to process scalability and economic feasibility. In the second approach, an experimental study is conducted in which D. armatus is cultivated under different proportions of aquaculture effluent derived from a tilapia recirculating system, evaluating microalgal growth, the removal of nitrogen compounds and phosphorus, as well as the protein content of the produced biomass. The results demonstrate good growth performance and high efficiency in the removal of ammonia, nitrite, nitrate, and total phosphorus, contributing to the improvement of effluent quality. The obtained biomass presents a relevant protein content, indicating potential for biotechnological applications. Overall, the results confirm that Desmodesmus armatus exhibits high potential as a bioremediation agent and as a source of value-added biomass, reinforcing its applicability in sustainable effluent treatment systems and microalgal biorefineries.

COMMITTEE MEMBERS:
Presidente - ALFREDO OLIVERA GALVEZ
Externa à Instituição - BARBARA DE CASSIA SOARES BRANDÃO
Interno - MARCUS METRI CORREA