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Titolo:
Batch test for characterisation of the carbonaceous materials in municipalwastewaters
Autore:
Wentzel, MC; Mbewe, A; Lakay, MT; Ekama, GA;
Indirizzi:
Univ Cape Town, Dept Civil Engn, Water Res Grp, ZA-7701 Rondebosch, South Africa Univ Cape Town Rondebosch South Africa ZA-7701 Rondebosch, South Africa
Titolo Testata:
WATER SA
fascicolo: 3, volume: 25, anno: 1999,
pagine: 327 - 335
SICI:
0378-4738(199907)25:3<327:BTFCOT>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACTIVATED-SLUDGE PROCESS; EXCESS PHOSPHORUS REMOVAL; WASTE-WATER; MODEL; DENITRIFICATION; SYSTEMS; COD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
25
Recensione:
Indirizzi per estratti:
Indirizzo: Wentzel, MC Univ Cape Town, Dept Civil Engn, Water Res Grp, ZA-7701 Rondebosch, South Africa Univ Cape Town Rondebosch South Africa ZA-7701 South Africa
Citazione:
M.C. Wentzel et al., "Batch test for characterisation of the carbonaceous materials in municipalwastewaters", WATER SA, 25(3), 1999, pp. 327-335

Abstract

As input to the current mathematical models for activated sludge systems, it is necessary to quantitatively characterise the influent COD. Existing methods are complex and time-consuming, or require activated sludge seed acclimatised to the wastewater, which may not be available. A batch test procedure is presented to quantify five influent COD fractions - unbiodegradablesoluble (USOD) and particulate (UPCOD), readily (RBCOD) and slowly (SBCOD)biodegradable, and heterotrophic active biomass (HAB). The method is relatively simple and does not require acclimatised activated sludge. For RBCOD and USCOD, results from the batch test correlate closely with those from conventional methods. However, for UPCOD and SBCOD, the correlation with conventional tests is poor, and the batch test estimates are not sufficiently accurate for design and simulation; this aspect requires further investigation. For HAB, the batch lest estimates could not be evaluated as no conventional tests for this parameter are available.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/04/20 alle ore 11:47:04