| Texto completo | |
| Autor(es): |
Motteran, Fabricio
[1]
;
Nadai, Bianca Marques
[1]
;
Braga, Juliana Kawanishi
[1]
;
Silva, Edson Luiz
[2]
;
Amancio Varesche, Maria Bernadete
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Sao Paulo, Sch Engn Sao Carlos, Dept Hydraul & Sanit, Ave Trabalhador Saocarlense 400, BR-13566590 Sao Carlos, SP - Brazil
[2] Univ Fed Sao Carlos, Dept Chem Engn, Rod Washington Luiz, Km 235, SP 310, BR-13565905 Sao Carlos, SP - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Science of The Total Environment; v. 640, p. 1411-1423, NOV 1 2018. |
| Citações Web of Science: | 3 |
| Resumo | |
In this study, the microbial community characterization and metabolic pathway identification involved in the linear alkylbenzene sulfonated (LAS) degradation from commercial laundry wastewater in a fluidized bed reactor (FBR) on an increased scale were performed using the Illumina MiSeq platform. Ethanol and non-ionic surfactant (LAE, Genapol C-100) were used as co-substrates. The FBR was operated in five operational phases: (I) synthetic substrate for inoculation; (II) 7.9 +/- 4.7 mg/L LAS and 11.7 +/- 6.9 mg/L LAE; (III) 19.4 +/- 12.9 mg/L LAS, 19.6 +/- 9.2 mg/L LAE and 205 mg/L ethanol; (IV) 25.9 +/- 11 mg/L LAS, 19.5 +/- 9.1 mg/L LAE and 205 mg/L ethanol and (V) 43.9 +/- 18 mg/L LAS, 25 +/- 9.8 mg/L LAE and 205 mg/L ethanol. At all operation phases, organic matter was removed from 40.4 to 85.1% and LAS removal was from 24.7 to 56%. Sulfate-reducing bacteria (SRB) were identified in the biofilm of FBR in all operational phases. Although the LAS promoted a toxic effect on the microbiota, this effect can be reduced when using biodegradable co-substrates, such as ethanol and LAE, which was observed in Phase IV. In this phase, there was a greater microbial diversity (Shannon index) and higher microorganism richness (Chao 1 index), both for the Domain Bacteria, and for the Domain Archaea. (c) 2018 Elsevier B.V. All rights reserved. (AU) | |
| Processo FAPESP: | 13/19025-3 - Ampliação da escala de reator anaeróbio de leito fluidificado para remoção de surfactantes aniônico e não ionico em água residuária de lavanderia comercial |
| Beneficiário: | Fabricio Motteran |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |