Influence of hydrolytic and acidogenic activity on the anaerobic biotransformation of organic micropollutants

• Grant number: 17/13066-0
• Support type: Scholarships abroad - Research Internship - Doctorate
• Effective date (Start): November 01, 2017
• Effective date (End): August 31, 2018
• Field of knowledge: Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
• Principal researcher: Marcelo Zaiat
• Grantee: Rodrigo Braz Carneiro
• Supervisor abroad: Juan Manuel Lema
• Home Institution: Escola de Engenharia de São Carlos (EESC). Universidade de São Paulo (USP). São Carlos , SP, Brazil
• Research place: Universidade de Santiago de Compostela, Santiago (USC), Spain
• Associated to the scholarship: 15/04427-4 - Performance evaluation of structured and packed bed reactor for removal of sulfamethoxazole and ciprofloxacin, BP.DR

Abstract

Domestic wastewater treatment by anaerobic route is used worldwide and has great applicability in hot climate countries, as in the case of Brazil. Anaerobic digestion has shown potential for biodegradation of several emerging micropollutants. However, the mechanisms and intervening factors involved in the biotransformation of these compounds, which are essential to elucidate possible transformation products and to promote their complete removal in the biological system through operational strategies, are still unclear. There are indications that the enzymes present at each stage of anaerobic digestion (hydrolysis, acidogenesis, acetogenesis and methanogenesis) may influence the removal of organic micropollutants depending on their chemical structure. Thus, this project intends to investigate the mechanisms involved in the biodegradation of several micropollutants belonging to various classes, such as musk fragrances, anti-inflammatories, antibiotics, neurodrugs and endocrine disrupting compounds, which are present in domestic wastewater. More specifically, the study predicts the influence of the fermentative step on the removal of the compounds of interest. (AU)

Scientific publications

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

CARNEIRO, RODRIGO B.; GONZALEZ-GIL, LORENA; ANDREA LONDONO, YUDY; ZAIAT, MARCELO; CARBALLA, MARTA; LEMA, JUAN M. Acidogenesis is a key step in the anaerobic biotransformation of organic micropollutants. JOURNAL OF HAZARDOUS MATERIALS, v. 389, MAY 5 2020. Web of Science Citations: 0.