Disinfection of secondary effluents by UV/H2O2

• Grant number: 16/07911-7
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: December 01, 2016
• End date: January 31, 2021
• Field of knowledge: Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
• Principal Investigator: Renato Falcão Dantas
• Grantee: Jacqueline Aparecida Malvestiti
• Host Institution: Faculdade de Tecnologia (FT). Universidade Estadual de Campinas (UNICAMP). Limeira , SP, Brazil
• Associated research grant: 14/17774-1 - Influence of the secondary effluent composition on the disinfection by advanced oxidation processes, AP.JP
• Associated scholarship(s): 17/23642-9 - Removal of emerging contaminants during disinfection of urban wastewater by advanced oxidation, BE.EP.DR

Abstract

The disinfection of effluents is a technology known for its efficiency in many cities in the world, however if this disinfection is based on oxidation, the composition can affect the treatment efficiency. The variation in the composition and reactivity of the effluent may delay the inactivation of microorganisms due to the presence of competing reactive material to react with the oxidant. In the case of advanced oxidation processes, the formed radicals, especially HO* may have its efficiency affected by varying the reactivity of organic matter (EFOM - effluent organic matter) and inorganic compounds such as carbonates and nitrates. Currently, the potential of oxidative processes to disinfect municipal effluents is very known as well as that the variation in composition and the effluent reactivity may affect the treatment. But still not clear how each component, part of EFOM, inorganic compounds and even chemical compounds of industrial origin can affect the process. This project proposes to study the influence of the main components of the effluent in the disinfection process by advanced oxidation processes (UV/H2O2) in order to establish the necessary doses for proper disinfection, taking into account the variations of the effluent.

Scientific publications

(5)

(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)

MALVESTITI, JACQUELINE A.; SIMAO, DEBORA C.; DANTAS, RENATO F.. Toxicity and disinfection assessment of metal containing WWTP effluents during ozonation and UV/H2O2. JOURNAL OF WATER PROCESS ENGINEERING, v. 46, p. 9-pg., 2022-04-01. (16/07911-7, 14/17774-1)

MALVESTITI, JACQUELINE A.; DANTAS, RENATO F.. Disinfection of secondary effluents by O-3, O-3/H2O2 and UV/H2O2: Influence of carbonate, nitrate, industrial contaminants and regrowth. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v. 6, n. 1, p. 8-pg., 2018-02-01. (14/17774-1, 16/07911-7)

MALVESTITI, JACQUELINE A.; DANTAS, RENATO F.. Disinfection of secondary effluents by O-3, O-3/H2O2 and UV/H2O2: Influence of carbonate, nitrate, industrial contaminants and regrowth. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v. 6, n. 1, p. 560-567, FEB 2018. (16/07911-7, 14/17774-1)

MALVESTITI, JACQUELINE A.; FAGNANI, ENELTON; SIMAO, DEBORA; DANTAS, RENATO F.. Optimization of UV/H2O2 and ozone wastewater treatment by the experimental design methodology. ENVIRONMENTAL TECHNOLOGY, v. 40, n. 15, p. 1910-1922, JUL 3 2019. (16/07911-7, 14/17774-1)

MALVESTITI, JACQUELINE A.; DANTAS, RENATO F.. Modelling secondary effluents disinfection by UV/H2O2 in presence of HO* scavengers using the ROH concept. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v. 10, n. 3, p. 12-pg., 2022-05-22. (16/07911-7, 14/17774-1)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

MALVESTITI, Jacqueline Aparecida. Disinfection of biotrated sanitary effluent by UV/H2O2 and O3. 2021. Doctoral Thesis - Universidade Estadual de Campinas (UNICAMP). Faculdade de Tecnologia Limeira, SP.