Abstract

This paper reports the results of an investigation aimed at evaluating the performance ofan innovative technology (SBBGR system - Sequencing Batch Biofilter Granular Reactor),characterised by a low sludge production, for treating municipal wastewater at demonstrativescale. The results have shown that even at the maximum investigated organic load(i.e., 2.5 kg COD/m3 d), the plant removed 80% of COD, total suspended solids and nitrogencontent with relative residual concentrations lower than the Italian limits for dischargeinto soil. The process was characterised by a very low sludge production (i.e., 0.12-0.14 kgTSS/kg CODremoved) ascribable to the high sludge age in the system (qc >120 d). Molecular insitu detection methods and microscopy staining procedures were employed in combinationwith the traditional measurements (oxygen uptake rate and total protein content) toevaluate both the microbial activity and composition, and the structure of the biomass.A stable presence of active bacterial populations (mainly Proteobacteria) was found withincompact and dense aggregates.

Autore Pugliese

• Di Iaconi Claudio , De Sanctis Marco

Tutti gli autori

• DI IACONI C.; DE SANCTIS M.; ROSSETTI S.; RAMADORI R.

Titolo volume/Rivista

Water research

Anno di pubblicazione

2010

ISSN

0043-1354

ISBN

Non Disponibile

Numero di citazioni Wos

Nessuna citazione

Ultimo Aggiornamento Citazioni

Non Disponibile

Numero di citazioni Scopus

Non Disponibile

Ultimo Aggiornamento Citazioni

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Settori ERC

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Codici ASJC

Non Disponibile