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Fate of biodegradable dissolved organic carbon produced by ozonation on biological activated carbon.
Chemosphere. 2004 Jul; 56(2):113-9.C

Abstract

The adsorption and desorption characteristics of BDOC produced by ozonation and the replacement of BDOC by non-BDOC on BAC was studied. The fate of BDOC produced by ozonation in the BAC column was also evaluated by comparative experiment between the BAC supplied with the mixture of BDOC and non-BDOC and the BAC supplied only with non-BDOC. Fulvic acids extracted from two river sediments and one forest soil were used. BDOC produced by ozonation showed the same or lower adsorption capacity than non-BDOC after biodegradation. The adsorption rate of BDOC on GAC was lower than that of non-BDOC. BDOC produced by ozonation had low desorbability and majority of BDOC produced were not replaced by non-BDOC. BDOC in the ozonated fulvic acid did not affect the breakthrough of the ozonated fulvic acid on GAC in the early stage of adsorption, suggesting that most of BDOC were biodegraded on the surface of GAC before adsorption. Therefore, the production of BDOC by ozonation before the GAC treatment is very effective for the extension of GAC service life and the reduction of DOC loading to GAC.

Authors+Show Affiliations

Nishijima W
Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi-Hiroshima, Hiroshima 739-8527, Japan. wataru@hiroshima-u.ac.jp
Speitel GE
No affiliation info available

MeSH

AdsorptionBenzopyransBiodegradation, EnvironmentalCarbonCharcoalGeologic SedimentsKineticsOzoneSoilTime FactorsUnited States

Pub Type(s)

Comparative Study
Journal Article

Language

eng

PubMed ID

15120556

Citation

Nishijima, Wataru, and Gerald E. Speitel. "Fate of Biodegradable Dissolved Organic Carbon Produced By Ozonation On Biological Activated Carbon." Chemosphere, vol. 56, no. 2, 2004, pp. 113-9.
Nishijima W, Speitel GE. Fate of biodegradable dissolved organic carbon produced by ozonation on biological activated carbon. Chemosphere. 2004;56(2):113-9.
Nishijima, W., & Speitel, G. E. (2004). Fate of biodegradable dissolved organic carbon produced by ozonation on biological activated carbon. Chemosphere, 56(2), 113-9.
Nishijima W, Speitel GE. Fate of Biodegradable Dissolved Organic Carbon Produced By Ozonation On Biological Activated Carbon. Chemosphere. 2004;56(2):113-9. PubMed PMID: 15120556.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Fate of biodegradable dissolved organic carbon produced by ozonation on biological activated carbon. AU - Nishijima,Wataru, AU - Speitel,Gerald E,Jr PY - 2003/09/03/received PY - 2004/02/20/revised PY - 2004/03/02/accepted PY - 2004/5/4/pubmed PY - 2004/8/10/medline PY - 2004/5/4/entrez SP - 113 EP - 9 JF - Chemosphere JO - Chemosphere VL - 56 IS - 2 N2 - The adsorption and desorption characteristics of BDOC produced by ozonation and the replacement of BDOC by non-BDOC on BAC was studied. The fate of BDOC produced by ozonation in the BAC column was also evaluated by comparative experiment between the BAC supplied with the mixture of BDOC and non-BDOC and the BAC supplied only with non-BDOC. Fulvic acids extracted from two river sediments and one forest soil were used. BDOC produced by ozonation showed the same or lower adsorption capacity than non-BDOC after biodegradation. The adsorption rate of BDOC on GAC was lower than that of non-BDOC. BDOC produced by ozonation had low desorbability and majority of BDOC produced were not replaced by non-BDOC. BDOC in the ozonated fulvic acid did not affect the breakthrough of the ozonated fulvic acid on GAC in the early stage of adsorption, suggesting that most of BDOC were biodegraded on the surface of GAC before adsorption. Therefore, the production of BDOC by ozonation before the GAC treatment is very effective for the extension of GAC service life and the reduction of DOC loading to GAC. SN - 0045-6535 UR - https://www.unboundmedicine.com/medline/citation/15120556/Fate_of_biodegradable_dissolved_organic_carbon_produced_by_ozonation_on_biological_activated_carbon_ DB - PRIME DP - Unbound Medicine ER -