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Titolo:
Competitive removal of phenol and 2,4-dichlorophenol in biological activated carbon system
Autore:
Ha, SR; Vinitnantharat, S;
Indirizzi:
Asian Inst Technol, Sch Environm Resources & Dev, Environm Engn Program, Klongluang 12120, Pathumthani, Thailand Asian Inst Technol Klongluang Pathumthani Thailand 12120 mthani, Thailand Chungbuk Natl Univ, Dept Urban Engn, Cheongju, Chungbuk, South Korea Chungbuk Natl Univ Cheongju Chungbuk South Korea , Chungbuk, South Korea
Titolo Testata:
ENVIRONMENTAL TECHNOLOGY
fascicolo: 4, volume: 21, anno: 2000,
pagine: 387 - 396
SICI:
0959-3330(200004)21:4<387:CROPA2>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
BED GAC REACTOR; ADSORPTION; DESORPTION;
Keywords:
adsorption-desorption; biological activated carbon system; 2,4-dichlorophenol; granular activated carbon; phenol;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
17
Recensione:
Indirizzi per estratti:
Indirizzo: Ha, SR Asian Inst Technol, Sch Environm Resources & Dev, Environm Engn Program, POB 4, Klongluang 12120, Pathumthani, Thailand Asian Inst Technol POB4 Klongluang Pathumthani Thailand 12120 land
Citazione:
S.R. Ha e S. Vinitnantharat, "Competitive removal of phenol and 2,4-dichlorophenol in biological activated carbon system", ENV TECHNOL, 21(4), 2000, pp. 387-396

Abstract

Laboratory scale experiments were conducted to evaluate the removal capacities of the major competitive components in a biological activated carbon (BAC) system. Adsorption, desorption, biodegradation, biosorption, and bioregeneration were considered as the major target reactions. Phenol and 2,4-dichlorophenol were used in a single and bisolute system. The adsorption experiment showed that 2,4-DCP was a stronger adsorbate than phenol both in single and bisolute systems. On desorption of 2,4-DCF, the small fraction of sorbed compounds was reversible but phenol had comparatively high reversibility. All solutions exhibited high degrees of irreversible adsorption as hysteresis. Desorption in background organics showed high reversibility. The biomass sorptions of phenol and 2,4-DCP were both negligible so that the removal of these compounds could be disregarded in the BAC system. Meanwhile, the biodegradation of phenol was higher than that of 2,4-DCP in both as a single and bisolute systems. The biodegradation of phenol was higher than that of 2,4-DCP in both single and bisolute systems. Although, the biodegradation capability of phenol was suppressed in the presence of 2,4-DCP but it induced the biodegradation of 2,4-DCP. In single solute, the degree of bioregeneration in terms of phenol and 2,4DCP in single solute were 76.28% and 56.80%, respectively. In bisolute system, they were 74.46% and 60.20% for phenol and 2,4-DCP, respectively and degree of bioregeneration was corresponding to degree of hysteresis.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 16:25:38