Nitrogen removal in anaerobic reactors

• Grant number: 17/07490-4
• Support Opportunities: Regular Research Grants
• Start date: October 01, 2017
• End date: April 30, 2021
• Field of knowledge: Engineering - Sanitary Engineering - Water Supply and Wastewater Treatment
• Principal Investigator: Adriano Luiz Tonetti
• Grantee: Adriano Luiz Tonetti
• Host Institution: Faculdade de Engenharia Civil, Arquitetura e Urbanismo (FEC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil
• Associated researchers: Ana Paula Bortoleto ; Cassiana Carolina Montagner ; Jerusa Schneider ; Tiago Palladino Delforno ; Valeria Maia Merzel

Abstract

The use of anaerobic reactors for wastewater treatment has been growing and consolidating in Brazil due to a number of favorable socioeconomic and environmental factors. In this scenario, this project proposes to evaluate pre-denitrification and partial denitrification combined with Anammox in anaerobic reactors, aiming to contribute to nitrogen removal in sewage treatments plants. Therefore, a set of Anaerobic filters and UASB reactors will be inoculated with sludge from an anaerobic reactor that has been operating at UNICAMP for 10 years and another set of reactors will be inoculated with the same sludge, combined with Anammox sludge. Both sets will be operated under various hydraulic retention times (12, 8, 6 and 4 hours) and fed synthetic effluent enriched with various nitrate concentrations (0, 25, 50, 75 e 100 mgL-1) and with various organic matter concentrations (COD equal to 400, 300, 200, 100 mgL-1). All reactors will be evaluated for usual environmental parameters and also for changes in biogas production and microbial community. In the latter case, the modern technic of large-scale sequencing will be employed for biodiversity analysis. When the definition of ideal operational conditions for pre-denitrification and partial denitrification combined to Anammox regarding nitrate concentration, affluent COD and minimum hydraulic retention time is concluded, the life cycle assessment (LCA) will be conducted. As determined by ISO 14.000 series (ISO, 2002), this LCA will take into account all the treatment system, including the nitrification stage. This analysis will offer a general view of the environmental impacts of the treatment plant as a whole, considering the mass balance and energy balance. With its application it will be possible to infer which treatment process applied in nitrogen removal (pre-denitrification and partial denitrification combined to Anammox) will be the most adequate considering all environmental aspects and not only the final effluent quality. (AU)

Scientific publications

(14)

(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)

MANFIO, DENISE VAZQUEZ; TONETTI, ADRIANO LUIZ; MATTA, DAVID. Dewatering of septic tank sludge in alternative sludge drying bed. JOURNAL OF WATER SANITATION AND HYGIENE FOR DEVELOPMENT, v. 8, n. 4, p. 792-798, DEC 2018. (17/07490-4)

DE OLIVEIRA CRUZ, LUANA MATTOS; TONETTI, ADRIANO LUIZ; LENTO ARAUJO GOMES, BIANCA GRAZIELLA. Association of septic tank and sand filter for wastewater treatment: full-scale feasibility for decentralized sanitation. JOURNAL OF WATER SANITATION AND HYGIENE FOR DEVELOPMENT, v. 8, n. 2, p. 268-277, JUN 2018. (17/07490-4)

LEONEL, LAYS PAULINO; TONETTI, ADRIANO LUIZ. astewater reuse for crop irrigation: Crop yield, soil and human health implications based on giardiasis epidemiolog. Science of The Total Environment, v. 775, JUN 25 2021. (17/07490-4, 17/12157-2)

DUARTE, NATALIA CANGUSSU; BARBOSA, ARIANE CORREA; MAGALHAES, TAINA MARTINS; MONTAGNER, CASSIANA CAROLINA; DE OLIVEIRA CRUZ, LUANA MATTOS; TONETTI, ADRIANO LUIZ. Conventional Anaerobic Reactors Applied to Denitrification: a Comparison Between Packed Bed and UASB Reactors Under Low COD Conditions. WATER AIR AND SOIL POLLUTION, v. 232, n. 2, FEB 3 2021. (17/07490-4)

TONETTI, ADRIANO LUIZ; DUARTE, NATALIA CANGUSSU; RIBEIRO DOS SANTOS, MARIANA RODRIGUES; SIQUEIRA, GUSTAVO HENRIQUE. Environmentally friendly interlocking concrete paver blocks produced with treated wastewater. WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY, v. 19, n. 7, p. 2028-2035, NOV 2019. (17/07490-4)

ALMEIDA, M. E. P.; TONETTI, A. L.. Treated wastewater as a sustainable alternative to concrete manufacturing: a literature review on its performance. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, v. N/A, p. 18-pg., 2022-12-06. (17/07490-4)

DA PAIXAO FILHO, JORGE LUIZ; PORTELA, DANIELLA GONCALVES; DA SILVA, CARLOS ISAQUE; DE OLIVEIRA, GABRIEL CAMARGO; TONETTI, ADRIANO LUIZ. Use of expanded polystyrene (EPS) as a support media for trickling filters applied to wastewater treatment. APPLIED WATER SCIENCE, v. 13, n. 2, p. 7-pg., 2023-02-01. (17/07490-4)

SILVA, NOELY BOCHI; LEONEL, LAYS PAULINO; TONETTI, ADRIANO LUIZ. UV-LED for Safe Effluent Reuse in Agriculture. WATER AIR AND SOIL POLLUTION, v. 231, n. 7, JUL 1 2020. (17/12157-2, 17/07490-4)

DUARTE, NATALIA CANGUSSU; DOS SANTOS AMARAL, ANA ELITHA; LENTO ARAUJO GOMES, BIANCA GRAZIELLA; SIQUEIRA, GUSTAVO HENRIQUE; TONETTI, ADRIANO LUIZ. Water reuse in the production of non-reinforced concrete elements: An alternative for decentralized wastewater management. JOURNAL OF WATER SANITATION AND HYGIENE FOR DEVELOPMENT, v. 9, n. 3, p. 596-600, SEP 2019. (17/07490-4)

AGNELO, LUCAS; LEONEL, LAYS PAULINO; SILVA, NOELY BOCHI; CANDELLO, FERNANDO PENA; SCHNEIDER, JERUSA; TONETTI, ADRIANO LUIZ. Effects of wastewater disinfectants on the soil: Implications for soil microbial and chemical attributes. Science of The Total Environment, v. 706, MAR 1 2020. (17/07490-4)

DE OLIVEIRA CRUZ, LUANA MATTOS; LENTO ARAUJO GOMES, BIANCA GRAZIELLA; TONETTI, ADRIANO LUIZ; SALLES FIGUEIREDO, ISABEL CAMPOS. Using coconut husks in a full-scale decentralized wastewater treatment system: The influence of an anaerobic filter on maintenance and operational conditions of a sand filter. ECOLOGICAL ENGINEERING, v. 127, p. 454-459, FEB 2019. (17/07490-4)

MAGALHAES, TAINA MARTINS; DUARTE, NATALIA CANGUSSU; NEVES, THIAGO DE ALENCAR; CAMARGO BUENO, DANIEL AUGUSTO; DELFORNO, TIAGO PALLADINO; DE OLIVEIRA, VALERIA MAIA; TONETTI, ADRIANO LUIZ. The Challenge of Making Wastewater Treatment Plants Composed by Anaerobic Reactors Capable of Removing Nitrogen. WATER AIR AND SOIL POLLUTION, v. 230, n. 10, OCT 2019. (17/07490-4)

LEONEL, LAYS PAULINO; BIZE, ARIANE; MARIADASSOU, MAHENDRA; MIDOUX, CEDRIC; SCHNEIDER, JERUSA; TONETTI, ADRIANO LUIZ. Impacts of disinfected wastewater irrigation on soil characteristics, microbial community composition, and crop yield. BLUE-GREEN SYSTEMS, v. 4, n. 2, p. 25-pg., 2022-12-07. (18/25451-9, 17/12157-2, 17/07490-4)

TONETTI, A. L.; FIGUEIREDO, I. C. S.; MADRID, F. J. P. L.; MAGALHAES, T. M.; MIYAZAKI, C. K.. Cost confrontation study for decentralized wastewater treatment: When to adopt a cluster or onsite system?. INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, v. 19, n. 5, p. 10-pg., 2021-04-27. (17/07490-4)