Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A membrane aerated biofilm reactor for sulfide control from anaerobically treated wastewater

Full text
Author(s):
Camiloti, Priscila Rosseto [1] ; Valdes, Freddy [2] ; Delforno, Tiago Palladino [3] ; Bartacek, Jan [4] ; Zaiat, Marcelo [1] ; Jeison, David [5]
Total Authors: 6
Affiliation:
[1] Univ Sao Paulo, Biol Proc Lab, Ctr Res Dev & Innovat Environm Engn, Sao Carlos Sch Engn EESC, Sao Carlos, SP - Brazil
[2] Univ La Frontera, Nat Resources Dept, Temuco - Chile
[3] Campinas Univ UNICAMP, Microbial Resources Div, Res Ctr Chem Biol & Agr CPQBA, CP 6171, BR-13081970 Campinas, SP - Brazil
[4] Inst Chem Technol, Dept Water Technol & Environm Engn, Prague - Czech Republic
[5] Pontificia Univ Catolica Valparaiso, Escuela Ingn Bioquim, Valparaiso - Chile
Total Affiliations: 5
Document type: Journal article
Source: ENVIRONMENTAL TECHNOLOGY; v. 40, n. 18, p. 2354-2363, AUG 11 2019.
Web of Science Citations: 3
Abstract

A upflow anaerobic sludge blanket reactor was operated combined to a membrane aerated biofilm reactor for sulfate removal and for elemental sulfur reclamation. A commercial silicon tube was used as an oxygen delivery diffuser. The process achieved high rates of sulfide removal from the liquid phase (90%). The hydrogen sulfide removal was influenced by the pH value and at pH value of 7.5, 98% of the H2S was removed. The elemental sulfur was observed inside the membrane, with content in the biomass of 21%. Through the massive sequencing of the samples, the microbial community diversity and the stratification of biomass inside the silicon tube was demonstrated, confirming the presence of sulfide-oxidizing bacteria on the membrane wall. The most important genera found related to the sulfur cycle were Sulfuricurvum, Geovibrio, Flexispira and Sulforospirillum. (AU)

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
FAPESP's process: 13/13131-6 - Sulfate reduction and sulfide oxidation in an UASB reactor combined to a micro-aerobic reactor
Grantee:Priscila Rosseto Camiloti
Support Opportunities: Scholarships abroad - Research Internship - Doctorate
FAPESP's process: 11/22904-3 - Elemental sulphur recovery from wastewater in anaerobic-microaerobic combined reactor
Grantee:Priscila Rosseto Camiloti
Support Opportunities: Scholarships in Brazil - Doctorate