A low footprint and excess sludge production system for wastewater treatment

Abstract

This paper reports the results of a study aimed at evaluating the effectiveness of an innovative technology (SBBGR - Sequencing Batch Biofilter Granular Reactor) for treating environmentally relevant wastewater (i.e., municipal wastewater, textile industry effluents and sanitary landfill leachates). SBBGR is a periodic biofilter based on aerobic granular sludge featured by a low excess sludge production. The results have shown that for the selected wastewater SBBGR is able to remove, in a single stage, completely the biodegradable organic material and 80-90% of nitrogen and total suspended solids content even at an organic loading rate of 2.5 kg COD/m3.d. SBBGR operated at very high sludge age value (i.e., 150 to 800 d) and biomass concentration (i.e., 30-50 kgTSS/m3). Excess sludge production ranged from 0.05 to 0.1 kg of dry sludge per kg of COD removed.


Autore Pugliese

Tutti gli autori

  • C. Di Iaconi; A. Mancini; R. Ramadori; A. Lopez

Titolo volume/Rivista

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Anno di pubblicazione

2011

ISSN

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ISBN

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Settori ERC

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