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

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ID: 54731
2019
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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 (stage I) to 19 ± 10 mg LAS L (stage II) and 36 ± 19 mg LAS L (stage III) throughout reactor operation. Sulfide levels higher than 20 mg L 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).
Reference Key
moura2019laundryjournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Moura, A G L;Centurion, V B;Okada, D Y;Motteran, F;Delforno, T P;Oliveira, V M;Varesche, M B A;
Journal Journal of environmental management
Year 2019
DOI
S0301-4797(19)31213-7
URL
Keywords
expanded granular sludge bed reactor microbial diversity anaerobic degradation aromatic compound granule disruption linear alkylbenzene sulfonate

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