Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Sorption and biodegradation of vapor-phase organic compounds with wastewater sludge and food waste compost
Autore:
Kim, HJ; Cho, KS; Park, JW; Goltz, MN; Khim, JH; Kim, JY;
Indirizzi:
Ewha Womans Univ, Natl Subsurface Environm Res Lab, Seoul 120750, South Korea Ewha Womans Univ Seoul South Korea 120750 Lab, Seoul 120750, South Korea USAF, Inst Technol, Dept Syst & Engn Management, Wright Patterson AFB, OH 45433 USA USAF Wright Patterson AFB OH USA 45433 Wright Patterson AFB, OH 45433 USA Korea Univ, Dept Civil & Environm Engn, Seoul 136701, South Korea Korea Univ Seoul South Korea 136701 ronm Engn, Seoul 136701, South Korea Seoul Natl Univ, Sch Civil Urban Geosyst Engn, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 Engn, Seoul 151742, South Korea
Titolo Testata:
JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION
fascicolo: 8, volume: 51, anno: 2001,
pagine: 1237 - 1244
SICI:
1096-2247(200108)51:8<1237:SABOVO>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
CHLORINATED SOLVENTS; VOC EMISSIONS; TOLUENE; TRICHLOROETHYLENE; COMETABOLISM; DEGRADATION; BACTERIA; 3-CHLORODIBENZOFURAN; BIOFILTRATION; LANDFILLS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Engineering, Computing & Technology
Citazioni:
34
Recensione:
Indirizzi per estratti:
Citazione:
H.J. Kim et al., "Sorption and biodegradation of vapor-phase organic compounds with wastewater sludge and food waste compost", J AIR WASTE, 51(8), 2001, pp. 1237-1244

Abstract

To test the possible use of composted food waste and wastewater sludge as biofilters to treat gas-phase volatile organic compounds (VOCs), batch experiments were conducted with an isolated strain that could degrade aromatic compounds under aerobic conditions. A benzene and trichloroethylene (TCE) mixture was used as the gas-phase pollutant in experiments with composted food waste, sludge, and soil. Under aerobic conditions, benzene was degraded as a primary substrate and TCE was degraded cometabolically, with water contents varying from 6 to 60% (volume of water added/volume of solid). Optimal water content for VOC removal was 12% for the soil, 36% for the compostedfood waste, and 48% for the sludge. The extent of VOC sorption and biodegradation at the optimal water contentwas different for each material. With the same initial VOC concentration, more VOCs were removed by sorption onto the composted food waste and the sludge, while less VOCs were biodegraded in comparison with the results usingsoil. The reason the biodegradation in the soil was greater may be partly attributed to the fact that, due to less sorption, the aqueous-phase concentration of VOCs, which microorganisms could utilize as a carbon source or cometabolize, was higher. We also speculate that the distribution of microorganisms in each medium affects the rate of biodegradation. A large number of microorganisms were attached to the composted food waste and sludge. Masstransfer of VOCs and oxygen to these microorganisms, which appear to have been heterogeneously distributed in clusters, may have been limited, resulting in hindered biodegradation.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/04/20 alle ore 12:06:56