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Titolo:
Evaluation of soil vapor extraction and bioventing for a petroleum-contaminated shallow aquifer in Korea
Autore:
Lee, JY; Lee, CH; Lee, KK; Choi, SI;
Indirizzi:
Seoul Natl Univ, Sch Earth & Environm Sci, Seoul 151742, South Korea SeoulNatl Univ Seoul South Korea 151742 Sci, Seoul 151742, South Korea Seoul Natl Univ, GeoGreen21 Co Ltd, Seoul 151818, South Korea Seoul Natl Univ Seoul South Korea 151818 Ltd, Seoul 151818, South Korea Oikos Co Ltd, Yongdungpo Ku, Seoul 150101, South Korea Oikos Co Ltd Seoul South Korea 150101 ngpo Ku, Seoul 150101, South Korea Kwangwoon, Dept Environm Engn, Seoul 139701, South Korea Kwangwoon SeoulSouth Korea 139701 ironm Engn, Seoul 139701, South Korea
Titolo Testata:
SOIL & SEDIMENT CONTAMINATION
fascicolo: 4, volume: 10, anno: 2001,
pagine: 439 - 458
SICI:
1532-0383(2001)10:4<439:EOSVEA>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
BIODEGRADATION RATES;
Keywords:
soil vapor extraction; bioventing; remediation; volatilization; biodegradation;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Lee, KK Seoul Natl Univ, Sch Earth & Environm Sci, Seoul 151742, South Korea Seoul Natl Univ Seoul South Korea 151742 oul 151742, South Korea
Citazione:
J.Y. Lee et al., "Evaluation of soil vapor extraction and bioventing for a petroleum-contaminated shallow aquifer in Korea", SOIL SEDIM, 10(4), 2001, pp. 439-458

Abstract

The feasibility of soil vapor extraction and bioventing technologies was examined for a petroleum hydrocarbon-contaminated site. The test site was highly contaminated with toluene, ethylbenzene, and xylene, due to leakage from petroleum storage tanks. Three respiration tests demonstrated that the test site conditions were appropriate for application of air-based remediation technologies. The oxygen consumption rates ranged from 4.32 to 7.68 %-O-2/day and biodegradation rates ranged from 2.72 to 4.84 mg/kg-day in respiration tests. In a 120-day soil vapor extraction pilot test, high initial mass removals (with tailing effects) were observed. As expected for the soil vapor extraction, the volatilization rate was much higher than the biodegradation rate. In a bioventing trial, the biodegradation effect was predominant, but a tailing effect was not observed. From this study, the suggested sequence of remediation is to construct an integrated system of soil vapor extraction and bioventing and initially operate the soil vapor extraction system until the volatilization rate becomes smaller than the biodegradation rate. After that, the system needs to be changed over to a bioventing mode. Field demonstration supports the feasibility of the proposed integrated system.

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Documento generato il 04/04/20 alle ore 14:37:13