Dosing of anaerobic granular sludge bioreactors with cobalt: Impact of cobalt retention on methanogenic activity

F.G. Fermoso, J. Bartacek, R. Manzano, H.P. van Leeuwen, P.N.L. Lens

Research output: Contribution to journalArticleAcademicpeer-review

22 Citations (Scopus)

Abstract

The effect of dosing a metal limited anaerobic sludge blanket (UASB) reactor with a metal pulse on the methanogenic activity of granular sludge has thus far not been successfully modeled. The prediction of this effect is crucial in order to optimize the strategy for metal dosage and to prevent unnecessary losses of resources. This paper describes the relation between the initial immobilization of cobalt in anaerobic granular sludge cobalt dosage into the reactor and the evolution of methanogenic activity during the subsequent weeks. An operationally defined parameter (A0·B0) was found to combine the amount of cobalt immobilized instantaneously upon the pulse (B0) and the amount of cobalt immobilized within the subsequent 24 h (A0). In contrast with the individual parameters A0 and B0, the parameter A0·B0 correlated significantly with the methanogenic activity of the sludge during the subsequent 16 or 35 days. This correlation between metal retention and activity evolution is a useful tool to implement trace metal dosing strategies for biofilm-based biotechnological processes.
Original languageEnglish
Pages (from-to)9429-9437
JournalBioresource Technology
Volume101
Issue number24
DOIs
Publication statusPublished - 2010

Fingerprint

Cobalt
Bioreactors
cobalt
bioreactor
Metals
sludge
metal
Biofilms
immobilization
trace metal
biofilm
resource
prediction
parameter
dosage
effect
reactor

Keywords

  • degradation
  • vitamin-b-12
  • reactor
  • nickel
  • iron
  • deprivation
  • cadmium
  • ions

Cite this

Fermoso, F.G. ; Bartacek, J. ; Manzano, R. ; van Leeuwen, H.P. ; Lens, P.N.L. / Dosing of anaerobic granular sludge bioreactors with cobalt: Impact of cobalt retention on methanogenic activity. In: Bioresource Technology. 2010 ; Vol. 101, No. 24. pp. 9429-9437.
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abstract = "The effect of dosing a metal limited anaerobic sludge blanket (UASB) reactor with a metal pulse on the methanogenic activity of granular sludge has thus far not been successfully modeled. The prediction of this effect is crucial in order to optimize the strategy for metal dosage and to prevent unnecessary losses of resources. This paper describes the relation between the initial immobilization of cobalt in anaerobic granular sludge cobalt dosage into the reactor and the evolution of methanogenic activity during the subsequent weeks. An operationally defined parameter (A0·B0) was found to combine the amount of cobalt immobilized instantaneously upon the pulse (B0) and the amount of cobalt immobilized within the subsequent 24 h (A0). In contrast with the individual parameters A0 and B0, the parameter A0·B0 correlated significantly with the methanogenic activity of the sludge during the subsequent 16 or 35 days. This correlation between metal retention and activity evolution is a useful tool to implement trace metal dosing strategies for biofilm-based biotechnological processes.",
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Dosing of anaerobic granular sludge bioreactors with cobalt: Impact of cobalt retention on methanogenic activity. / Fermoso, F.G.; Bartacek, J.; Manzano, R.; van Leeuwen, H.P.; Lens, P.N.L.

In: Bioresource Technology, Vol. 101, No. 24, 2010, p. 9429-9437.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Dosing of anaerobic granular sludge bioreactors with cobalt: Impact of cobalt retention on methanogenic activity

AU - Fermoso, F.G.

AU - Bartacek, J.

AU - Manzano, R.

AU - van Leeuwen, H.P.

AU - Lens, P.N.L.

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AB - The effect of dosing a metal limited anaerobic sludge blanket (UASB) reactor with a metal pulse on the methanogenic activity of granular sludge has thus far not been successfully modeled. The prediction of this effect is crucial in order to optimize the strategy for metal dosage and to prevent unnecessary losses of resources. This paper describes the relation between the initial immobilization of cobalt in anaerobic granular sludge cobalt dosage into the reactor and the evolution of methanogenic activity during the subsequent weeks. An operationally defined parameter (A0·B0) was found to combine the amount of cobalt immobilized instantaneously upon the pulse (B0) and the amount of cobalt immobilized within the subsequent 24 h (A0). In contrast with the individual parameters A0 and B0, the parameter A0·B0 correlated significantly with the methanogenic activity of the sludge during the subsequent 16 or 35 days. This correlation between metal retention and activity evolution is a useful tool to implement trace metal dosing strategies for biofilm-based biotechnological processes.

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KW - vitamin-b-12

KW - reactor

KW - nickel

KW - iron

KW - deprivation

KW - cadmium

KW - ions

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