A pilot-scale investigation was carried out to evaluate the parameters affecting biofilm accumulation and sludge production. The behaviour of a cross flow (CF) plastic medium filter (4.3 m3 of Plasdek B 27) was followed over an eight month period. Four hydraulic loadings, from 2.5 to 3.6 m3/m2h, (organic loadings from 1.5 to 6.2 Kg BOD5/m3d) were experimented. Medium temperature, BOD5 influent and hydraulic loading were determinants for biofilm accumulation and sludge production. The specific oxygen uptake rate (SOUR) of waste sludge was found related to inlet BOD5. Furthermore a relationship between median retention time (MRT) and filter biomass was obtained; this relationship gave also a good capacity to interpret MRT for low-rate filters.
High load trickling filters. Biofilm accumulation and sludge production / Battistoni, P.; Fava, G.; Gatto, A.. - In: WATER SCIENCE AND TECHNOLOGY. - ISSN 0273-1223. - 26:9-11(1992), pp. 2405-2408. (Intervento presentato al convegno 16th Biennial Conference of the International Association on Water Pollution Research and Control - Water Quality International '92 tenutosi a Washington, DC, USA, nel 1992) [10.2166/wst.1992.0748].
High load trickling filters. Biofilm accumulation and sludge production
Fava G.;Gatto A.
1992
Abstract
A pilot-scale investigation was carried out to evaluate the parameters affecting biofilm accumulation and sludge production. The behaviour of a cross flow (CF) plastic medium filter (4.3 m3 of Plasdek B 27) was followed over an eight month period. Four hydraulic loadings, from 2.5 to 3.6 m3/m2h, (organic loadings from 1.5 to 6.2 Kg BOD5/m3d) were experimented. Medium temperature, BOD5 influent and hydraulic loading were determinants for biofilm accumulation and sludge production. The specific oxygen uptake rate (SOUR) of waste sludge was found related to inlet BOD5. Furthermore a relationship between median retention time (MRT) and filter biomass was obtained; this relationship gave also a good capacity to interpret MRT for low-rate filters.
Pubblicazioni consigliate
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris
