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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.)

Laundry wastewater and domestic sewage pilot-scale anaerobic treatment: Microbial community resilience regarding sulfide production

Full text
Author(s):
Moura, A. G. L. [1] ; Centurion, V. B. [2] ; Okada, D. Y. [3] ; Motteran, F. [1] ; Delforno, T. P. [2] ; Oliveira, V. M. [2] ; Varesche, M. B. A. [1]
Total Authors: 7
Affiliation:
[1] Univ Sao Paulo, Engn Sch Sao Carlos, Dept Hydraul & Sanitat, Lab Biol Proc, EESC, Campus 2, Sao Carlos, SP - Brazil
[2] Campinas Univ, UNICAMP, Res Ctr Chem Biol & Agr CPQBA, Microbial Resources Div, Campinas, SP - Brazil
[3] Campinas Univ, Sch Technol, Div Technol Environm Sanitat, UNICAMP, Limeira, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Journal of Environmental Management; v. 251, DEC 1 2019.
Web of Science Citations: 0
Abstract

In this study, the removal of anionic surfactant Linear Alkylbenzene Sulfonate (LAS) from laundry wastewater was evaluated in co-digestion with domestic sewage, using a pilot-scale Expanded Granular Sludge Bed reactor. Surfactant influent concentration was enhanced from 5 +/- 3 mg LAS L-1 (stage I) to 19 +/- 10 mg LAS L-1 (stage II) and 36 +/- mg LAS L-1 (stage III) throughout reactor operation. Sulfide levels higher than 20 mg L-1 influenced LAS removal efficiency, which decreased from 71% to 55% and 32% in stage I, II and III, respectively. Acclimation of microbial population was verified and higher relative abundance of the genera similar to Cytophaga, Bacteroides, Syntrophus and Syntrophobacter in the early stages (adaptation and stage I) was replaced by higher relative abundance of the genera Anaerophaga, Nitrosovibrio, Sulfurovum and Desulfovibrio in the last stages (stage II and III). (AU)

FAPESP's process: 15/06246-7 - Biorefinery concept applied to biological wastewater treatment plants: environmental pollution control coupled with material and energy recovery
Grantee:Marcelo Zaiat
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 16/11948-3 - Effect of las loading rate on its removal efficiency by co-digestion of commercial laundry wastewater and domestic sewage in a pilot scale EGSB reactor
Grantee:Alana Gandra Lima de Moura
Support Opportunities: Scholarships in Brazil - Master