Banca de DEFESA: MYCKAELLA JOICE SIMONE DOS SANTOS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MYCKAELLA JOICE SIMONE DOS SANTOS
DATE: 24/02/2026
TIME: 10:00
LOCAL: Sala de Aula 01 do PPEAMB, 1º andar do Prédio Antônio Coelho, do Departamento de Tecnologia Rural
TITLE:

Biological treatment of textile laundry effluent with Chlorella vulgaris: performance and potential for biomass valorization

KEY WORDS:

Biodegradation; Microalgae; Chlorella vulgaris; Textile effluent; Biomass valorization; Circular economy; Tertiary treatment.

PAGES: 65
BIG AREA: Engenharias
AREA: Engenharia Sanitária
SUMMARY:

The textile industry generates complex effluents that require sustainable treatments. This dissertation evaluated the potential of the microalgae Chlorella vulgaris in treating a real laundry effluent (Caruaru/PE, Brazil) and the characterization of the biomass for valorization. Cultivations were carried out with the raw effluent in different proportions (0 to 100%). The results confirmed the high efficiency of Chlorella vulgaris in removing nitrogen compounds (nitrate and nitrite), even in the pure effluent. However, the removal of color, COD, and phosphorus was limited, with an increase in COD indicating the release of organic matter by the algae. Therefore, it is concluded that Chlorella vulgaris is not suitable for primary treatment, but rather for a tertiary polishing stage, specialized in removing residual nitrogen. The chemical composition of the effluent likely impacted the quality of the residual biomass. With the increase in the volumetric proportion of the effluent, a reduction in production and protein content was observed, but a significant increase in carbohydrate content (71.07 μg mL⁻¹ in 100% effluent). The proximate analysis of the residual biomass revealed a promising profile for energy applications or as a biofertilizer. It was concluded that the key aspect of this work was the integrated evaluation using raw effluent, demonstrating the possibility of directing the process to generate a valuable by-product, aligning the post-treatment of textile effluent with the principles of the circular economy. To overcome the limitations, the use of microalgae-bacteria consortia and continuous cultivation systems is recommended for future studies.

COMMITTEE MEMBERS:
Presidente - ANDRE FELIPE DE MELO SALES SANTOS
Externa à Instituição - LAENNE BARBARA SILVA DE MORAES
Externa ao Programa - 2066204 - RAQUEL PEDROSA BEZERRA - null