Scale-up evaluation of anaerobic degradation of linear alkylbenzene sulfonate from sanitary sewage in expanded granular sludge bed reactor
| Autor: | L.E. Gerosa, T. Z. Macedo, Isabel Kimiko Sakamoto, Edson Luis Silva, Maria Bernadete Amancio Varesche, C.F. Granatto |
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| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
food.ingredient 030106 microbiology Sewage 010501 environmental sciences 01 natural sciences Microbiology Methanosaeta Biomaterials 03 medical and health sciences chemistry.chemical_compound Bioremediation food Syntrophus Phenol Waste Management and Disposal 0105 earth and related environmental sciences Limonene biology business.industry biology.organism_classification chemistry Environmental chemistry REATORES ANAERÓBIOS business Bacteria Geobacter |
| Zdroj: | Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP |
| ISSN: | 0964-8305 |
| DOI: | 10.1016/j.ibiod.2018.12.010 |
| Popis: | Sanitary sewage composed of 6.2 ± 3.2 mgLAS L−1, low diversity of organic acids (21.4 ± 18.9 and 2.1 ± 3.9 mg L−1, for acetic and propionic, respectively), metals (Fe, Zn, Pb, Mn, Ni, Cr, Cu) and xenobiotic compounds (limonene, terpinene, phenol, indolizine) were used in the pilot-scale EGSB reactor feed (69 L). For influent load of 1.4 ± 0.7 mgLAS gVS−1d−1 and 50 ± 15 mgCOD gVS−1 d−1, removal efficiencies were 60 ± 30% and 77 ± 28% for LAS and COD, respectively. According to the alpha diversity indices (Shannon, Chao-1and Simpson), the sanitary sewage composition did not negatively affect the microbial richness throughout the 314 days of EGSB reactor operation. Bacteria related to LAS degradation such as Synergistes, Syntrophus, Clostridium and Geobacter were identified. For the Archaea Domain, Methanosaeta was the dominant genus. Therefore, in the present study the application of a pilot-scale EGSB reactor was considered viable for the LAS bioremediation in sanitary sewage. |
| Databáze: | OpenAIRE |
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