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Titolo:
ROLE OF ADSORPTION IN GRANULAR ACTIVATED CARBON-FLUIDIZED BED REACTORS
Autore:
SHI J; ZHAO XD; HICKEY RF; VOICE TC;
Indirizzi:
MICHIGAN STATE UNIV,DEPT CIVIL & ENVIRONM ENGN E LANSING MI 48824 MICHIGAN STATE UNIV,DEPT CIVIL & ENVIRONM ENGN E LANSING MI 48824 MICHIGAN BIOTECHNOL INST LANSING MI 48909 EFX CO LANSING MI 00000
Titolo Testata:
Water environment research
fascicolo: 3, volume: 67, anno: 1995,
pagine: 302 - 309
SICI:
1061-4303(1995)67:3<302:ROAIGA>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
ANAEROBIC TREATMENT; WASTE-WATER; FILTER; PHENOL; BIOREGENERATION; BIODEGRADATION; DEGRADATION;
Keywords:
ACTIVATED CARBON; ADSORPTION; BIODEGRADATION; BIOFILM; FLUIDIZED BED; GROUNDWATER; TOLUENE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
J. Shi et al., "ROLE OF ADSORPTION IN GRANULAR ACTIVATED CARBON-FLUIDIZED BED REACTORS", Water environment research, 67(3), 1995, pp. 302-309

Abstract

A granular activated carbon-fluidized bed reactor (GAC-FBR) was used to treat groundwater contaminated with toluene. The performance of thereactor and the amount of adsorbed toluene on the GAC were investigated during start-up, under pseudo-steady-state conditions, during a step-increase in the applied organic loading rate (OLR) and after the OLRwas returned to the initial level. Under constant, organic loading rate conditions (5.4 kg chemical oxygen demand/m(3) day), 99.4% removal of an inlet toluene concentration of 2.7 mg/L was observed. The amountof adsorbed toluene was measured at various points in time by performing a solvent extraction on samples of GAC carrier removed from the FBR system. There were significant changes in the amount of toluene adsorbed onto the GAC during non-steady state (start-up and step OLR periods). This confirms the interpretation from previous biological activated carbon (BAC) studies that adsorption serves to dampen concentrationchanges in the system, thereby providing improved stability of effluent quality and overall system efficiency compared with systems employing only biodegradation. The results also conclusively demonstrate thatbioregeneration occurs in BAC systems such as the GAC-FBR process configuration.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/01/20 alle ore 12:07:35