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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Proof of concept and improvement of a triple chamber biosystem coupling anaerobic digestion, nitrification and mixotrophic endogenous denitrification for organic matter, nitrogen and sulfide removal from domestic sewage

Full text
Author(s):
Souza, Theo S. O. [1] ; Okada, Dagoberto Yukio [2] ; Foresti, Eugenio [3]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Dept Hydraul & Environm Engn, Polytech Sch, Ave Prof Almeida Prado, 83, Trav 2, Cidade Univ, BR-05508900 Sao Paulo, SP - Brazil
[2] Univ Estadual Campinas, Sch Technol, Rua Paschoal Marmo, 1888, BR-13484332 Limeira, SP - Brazil
[3] Univ Sao Paulo, Dept Hydraul & Sanitat, Sao Carlos Sch Engn, Ave Trabalhador Sao Carlense, 400, BR-13566590 Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Bioprocess and Biosystems Engineering; v. 41, n. 12, p. 1839-1850, DEC 2018.
Web of Science Citations: 0
Abstract

In this study, two versions of a triple chamber biosystem, coupling anaerobic digestion, nitrification and mixotrophic endogenous denitrification (ADNMED), were evaluated and compared. They were designed to maximize the use of endogenous electron donors produced by anaerobic digestion (residual organic matter and sulfide) to abate a portion of the influent nitrogen contained in domestic sewage while removing the inconvenience of effluent sulfide. The first version was able to abate 40% of the influent nitrogen but presented operational and hydrodynamic problems, which resulted in sulfide emissions. A modified second version was proposed, improving the first approach and achieving a nitrogen abatement of more than 60% and a sulfide-free effluent, complying with local emission standards. The results demonstrated that endogenous electron donors produced by anaerobic digestion should not be neglected, and a significant cost reduction in nitrogen removal from domestic sewage could be achieved by exploiting their potential with novel reactor configurations. (AU)

FAPESP's process: 12/07375-7 - Removal of organic matter and nitrogen from sewage in system composed by anaerobic/anoxic reactor interconnected to a nitrifying reactor
Grantee:Dagoberto Yukio Okada
Support Opportunities: Scholarships in Brazil - Post-Doctoral
FAPESP's process: 09/15984-0 - Bioenergy production from wastewaters and environmental fitting of liquid and solid wastes generated
Grantee:Marcelo Zaiat
Support Opportunities: Research Projects - Thematic Grants