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Titolo:
Removal of organic carbon, nitrogen and phosphorus in sequential batch reactors integrating the aerobic/anaerobic processes
Autore:
Callado, NH; Foresti, E;
Indirizzi:
Univ Fed Alagoas, Dept Construcao Civil & Transportes, BR-50929970 Maceio,Alagoas, Brazil Univ Fed Alagoas Maceio Alagoas Brazil BR-50929970 BCceio,Alagoas, Brazil Escola Engn Sao Carlos, Dept Hidraul & Saneamento, Ctr 400, BR-13566590 Sao Carlos, SP, Brazil Escola Engn Sao Carlos Sao Carlos SP Brazil BR-13566590 BClos, SP, Brazil
Titolo Testata:
WATER SCIENCE AND TECHNOLOGY
fascicolo: 4, volume: 44, anno: 2001,
pagine: 263 - 270
SICI:
0273-1223(2001)44:4<263:ROOCNA>2.0.ZU;2-S
Fonte:
ISI
Lingua:
ENG
Soggetto:
NUTRIENT REMOVAL;
Keywords:
biological wastewater treatment; biological phosphorus removal; denitrification; nitrification; SBR reactor;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
12
Recensione:
Indirizzi per estratti:
Indirizzo: Callado, NH Univ Fed Alagoas, Dept Construcao Civil & Transportes, RodoviaBR 101,Km 14,Campus Univ, BR-50929970 Maceio, Alagoas, Brazil Univ Fed Alagoas Rodovia BR 101,Km 14,Campus Univ Maceio Alagoas Brazil BR-50929970 BC
Citazione:
N.H. Callado e E. Foresti, "Removal of organic carbon, nitrogen and phosphorus in sequential batch reactors integrating the aerobic/anaerobic processes", WATER SCI T, 44(4), 2001, pp. 263-270

Abstract

The performance of a bench-scale apparatus composed of two sequential batch reactors (SBR), forming an anaerobic/aerobic treatment system, was evaluated as to its potential use for biological removal of organic matter and nutrients. Both the reactors with 12.5 L of useful volume each were operated for the batch cycles of 12 hours receiving 8.0 L of substrate in each cycle. The first reactor (SBRAn) fed with synthetic substrate simulating domestic sewage was meant to remove the largest fraction of carbonic matter and topromote the substrate ammonification. The second reactor (SBRAe) was operated under alternating aerobic and anoxic conditions to establish conditionsfor achieving nitrification; denitrification and biological phosphate removal in the same batch cycle. Sodium acetate was used as an external carbon source for phosphate removal. Processes monitoring included the analyses of: COD, NTK-N, NH4+-N, NO2--N, NO3--N PO43--P, alkalinity, volatile acids, pH, redox potential, total, fixed and volatile solids. Under the operating conditions imposed, the system exhibited high performance in removing organic matter (COD), nitrogen and phosphorus, producing effluent with COD, NTK-Nand PO43--P concentrations lower than 50.0 mg/L, 4.0 mg/L and 1.0 mg/L, respectively.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 09:00:34