Protection of biofilms against toxic shocks by the adsorption and desorption capacity of carriers in anaerobic fluidized bed reactors

Petrozzi, Sergio; Kut, Oemer M.; Dunn, Irving J.

doi:10.21256/zhaw-4203

Please use this identifier to cite or link to this item: https://doi.org/10.21256/zhaw-4203

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DC Field	Value	Language
dc.contributor.author	Petrozzi, Sergio	-
dc.contributor.author	Kut, Oemer M.	-
dc.contributor.author	Dunn, Irving J.	-
dc.date.accessioned	2018-02-27T14:46:42Z	-
dc.date.available	2018-02-27T14:46:42Z	-
dc.date.issued	1993-05	-
dc.identifier.issn	1615-7591	de_CH
dc.identifier.issn	1615-7605	de_CH
dc.identifier.uri	https://digitalcollection.zhaw.ch/handle/11475/3246	-
dc.description	Erworben im Rahmen der Schweizer Nationallizenzen (http://www.nationallizenzen.ch)	de_CH
dc.description.abstract	The aim of this study was to select a support medium for an anaerobic biofilm fluidized bed reactor (AFBR) for waste water treatment. Six materials, shale, pumice, porous glass, quartz sand, activated carbon and anthracite were used as carriers for the biofilm. The reactors were operated in parallel for several months with vapour condensate from a sulfite cellulose process as feed. The criteria used for the evaluation were: a) Reproducibility of the reactor performance, b) performance of the different carriers under various loading rates, c) stability against toxic shock loadings using 2,4,6-trichlorophenol (TCP) as toxicant, d) recovery capacity after intoxication and starvation, e) adsorption/desorption behavior of the carriers. A comparison between four runs showed good reproducibility of the steady state removal rates. The performance of the reactors and the stability of the degradation rates were tested for a range of loading conditions. Unbuffered, buffered and pH controlled conditions were compared. The pumice carrier was best with respect to the degradation rate achieved per carrier mass. The response of the reactors to massive TCP step loadings was tested. Loadings less than 1.5 kg TCP/m3d resulted in initially normal gas production rates for all the systems, except the activated carbon, whose gas production was partially inhibited from the start. After increasing the load to 1.5 kg TCP/m3d the gas production rates of all the other reactors fell abruptly to zero. Restarting after 2 months, all reactors showed methanogenic activity without requiring new inoculum. Adsorption and desorption experiments with TCP showed that only the anthracite and activated carbon adsorbed appreciable amounts. The activated carbon had the greatest adsorption capacity but did not release the TCP by desorption, as did the anthracite. A bicomponent (pumice and anthracite) carrier mixture was compared in biological experiments with pumice and anthracite carrier alone, with and without TCP loading. The pumice and the carrier-mix performed equally well under non-toxic-loading conditions. With TCP toxic loading, the performance of the anthracite was superior. The anthracite carrier could be regenerated, owing mainly to its capacity for desorption.	de_CH
dc.language.iso	en	de_CH
dc.publisher	Springer	de_CH
dc.relation.ispartof	Bioprocess and Biosystems Engineering	de_CH
dc.rights	Licence according to publishing contract	de_CH
dc.subject	Activate carbon	de_CH
dc.subject	Sulfite	de_CH
dc.subject	Anthracite	de_CH
dc.subject	Methanogenic activity	de_CH
dc.subject	Desorption capacity	de_CH
dc.subject.ddc	572: Biochemie	de_CH
dc.title	Protection of biofilms against toxic shocks by the adsorption and desorption capacity of carriers in anaerobic fluidized bed reactors	de_CH
dc.type	Beitrag in wissenschaftlicher Zeitschrift	de_CH
dcterms.type	Text	de_CH
zhaw.departement	Life Sciences und Facility Management	de_CH
dc.identifier.doi	10.21256/zhaw-4203	-
dc.identifier.doi	10.1007/BF00369032	de_CH
zhaw.funding.eu	No	de_CH
zhaw.issue	2-3	de_CH
zhaw.originated.zhaw	No	de_CH
zhaw.pages.end	59	de_CH
zhaw.pages.start	47	de_CH
zhaw.publication.status	publishedVersion	de_CH
zhaw.volume	9	de_CH
zhaw.publication.review	Peer review (Publikation)	de_CH
Appears in collections:	Publikationen Life Sciences und Facility Management

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Petrozzi, S., Kut, O. M., & Dunn, I. J. (1993). Protection of biofilms against toxic shocks by the adsorption and desorption capacity of carriers in anaerobic fluidized bed reactors. Bioprocess and Biosystems Engineering, 9(2-3), 47–59. https://doi.org/10.21256/zhaw-4203

Petrozzi, S., Kut, O.M. and Dunn, I.J. (1993) ‘Protection of biofilms against toxic shocks by the adsorption and desorption capacity of carriers in anaerobic fluidized bed reactors’, Bioprocess and Biosystems Engineering, 9(2-3), pp. 47–59. Available at: https://doi.org/10.21256/zhaw-4203.

S. Petrozzi, O. M. Kut, and I. J. Dunn, “Protection of biofilms against toxic shocks by the adsorption and desorption capacity of carriers in anaerobic fluidized bed reactors,” Bioprocess and Biosystems Engineering, vol. 9, no. 2-3, pp. 47–59, May 1993, doi: 10.21256/zhaw-4203.

PETROZZI, Sergio, Oemer M. KUT und Irving J. DUNN, 1993. Protection of biofilms against toxic shocks by the adsorption and desorption capacity of carriers in anaerobic fluidized bed reactors. Bioprocess and Biosystems Engineering. Mai 1993. Bd. 9, Nr. 2-3, S. 47–59. DOI 10.21256/zhaw-4203

Petrozzi, Sergio, Oemer M. Kut, and Irving J. Dunn. 1993. “Protection of Biofilms against Toxic Shocks by the Adsorption and Desorption Capacity of Carriers in Anaerobic Fluidized Bed Reactors.” Bioprocess and Biosystems Engineering 9 (2-3): 47–59. https://doi.org/10.21256/zhaw-4203.

Petrozzi, Sergio, et al. “Protection of Biofilms against Toxic Shocks by the Adsorption and Desorption Capacity of Carriers in Anaerobic Fluidized Bed Reactors.” Bioprocess and Biosystems Engineering, vol. 9, no. 2-3, May 1993, pp. 47–59, https://doi.org/10.21256/zhaw-4203.