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Titolo:
Odor control of an anaerobic lagoon with a biological cover: floating peatbeds
Autore:
Picot, B; Paing, J; Toffoletto, L; Sambuco, JP; Costa, RHR;
Indirizzi:
Univ Montpellier 1, Fac Pharm, Dept Sci Environm & Sante Publ, F-34060 Montpellier 2, France Univ Montpellier 1 Montpellier France 2 l, F-34060 Montpellier 2, France Ecosite DRLE, Zone Rech Lagunage, F-34140 Meze, France Ecosite DRLE MezeFrance F-34140 one Rech Lagunage, F-34140 Meze, France Univ Fed Santa Catarina, Dept Engn Sanitaria & Ambiental, BR-88010970 Florianopolis, SC, Brazil Univ Fed Santa Catarina Florianopolis SC Brazil BR-88010970 BC SC, Brazil
Titolo Testata:
WATER SCIENCE AND TECHNOLOGY
fascicolo: 9, volume: 44, anno: 2001,
pagine: 309 - 316
SICI:
0273-1223(2001)44:9<309:OCOAAL>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
REDUCED INORGANIC SULFUR; HYDROGEN-SULFIDE; REMOVAL; SEDIMENTS;
Keywords:
anaerobic pond; biodeodorization; emission; hydrogen sulfide; odors; peat;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
19
Recensione:
Indirizzi per estratti:
Indirizzo: Picot, B Univ Montpellier 1, Fac Pharm, Dept Sci Environm & Sante Publ, F-34060 Montpellier 2, France Univ Montpellier 1 Montpellier France 2 0 Montpellier 2, France
Citazione:
B. Picot et al., "Odor control of an anaerobic lagoon with a biological cover: floating peatbeds", WATER SCI T, 44(9), 2001, pp. 309-316

Abstract

The use of a biological cover for in situ control of gaseous sulfide emission from an anaerobic pond was investigated by a laboratory-scale experiment. The biological cover, constituting by a peat bed floating on the wastewater, caused a reduction of the H2S emission rate by 84.6%. The addition of Fe3+ (with FeCl3.) and plants (Juncus effusus L.) to the peat bed significantly improved the performance to reach a H2S removal of 95.5%. Despite the fluctuations in the sulfide concentration in the wastewater, the performance of the biological covers remained constant during the entire period of the study. The analysis of the different forms of sulfur accumulated in the peat beds allowed the understanding of the mechanisms involved in H2S removal. The high amount of sulfate demonstrated that the conditions were favorable to the biological oxidation of H2S. The addition of Fe3+ increased the formation of insoluble ferrous monosulfide (FeS) and pyrite (FeS2). The plants seemed to convert sulfate into elemental and organic sulfur.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 16:08:07