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Titolo:
MUNICIPAL WASTE-WATER TREATMENT IN BERLIN WITH DEEP TANKS AND FLOTATION FOR SECONDARY CLARIFICATION
Autore:
GNIRSS R; PETERFROHLICH A; SCHMIDT V;
Indirizzi:
BERLINER WASSERBETRIEBE,HOHENZOLLERNDAMM 45 D-10631 BERLIN GERMANY
Titolo Testata:
Water science and technology
fascicolo: 12, volume: 33, anno: 1996,
pagine: 199 - 210
SICI:
0273-1223(1996)33:12<199:MWTIBW>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Keywords:
BIOLOGICAL PHOSPHORUS ELIMINATION; DEEP AERATION TANKS; DENITRIFICATION; FLOTATION FOR SECONDARY CLARIFICATION; MUNICIPAL WASTE-WATER TREATMENT; NITRIFICATION; SEDIMENTATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
12
Recensione:
Indirizzi per estratti:
Citazione:
R. Gnirss et al., "MUNICIPAL WASTE-WATER TREATMENT IN BERLIN WITH DEEP TANKS AND FLOTATION FOR SECONDARY CLARIFICATION", Water science and technology, 33(12), 1996, pp. 199-210

Abstract

For municipal wastewater treatment, space-saving 10m deep activated sludge tanks are an interesting alternative to conventional tanks of shallow construction. Results from pilot tests in the Berlin-Ruhleben WWTP have shown that the biological P-elimination, nitrification and denitrification processes can be implemented as in shallow tanks. However, the activated sludge did not settle satisfactorily. Flotation was implemented in the process for secondary clarification and in the meanwhile has shown to be advantageous. Tests run over a period of some years with the pilot plant have proven the feasibility of this process. Energy requirements for both systems were found to be approximately the same. A cost estimate based on a preplan revealed a 10% advantage in favour of the 10m WWTP with flotation. For these reasons, one 10m WWTP with flotation for secondary clarification and a capacity of 80,000 m(3)/d will be built in Berlin in the near future. Copyright (C) 1996 IAWQ.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/11/20 alle ore 14:34:07