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

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)251CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO - CNPQFUNDAÇÃO DE AMPARO À PESQUISA DO ESTADO DE SÃO PAULO - FAPESPSem informação2016/11948-3; 2015/06246-7; 2015/06052-

Medici a Verona: Indagine sui fattori di benessere/malessere dei professionisti veronesi

E' il primo esito di una ricerca sviluppata nel 2014 nei confronti dei medici appartenenti all'albo dell'ordine dei medici della provincia di Verona. Si analizzano prevalentemente le condizioni segnalate di benessere o malessere in base ai quesiti proposti dal questionario. Hanno risposto pi\uf9 di un migliaio di medici rendendo particolarmente interessanti le indicazioni ricevute