Adsorption-desorption of strontium from waters using aerobic granules

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

25 Scopus Citations
View graph of relations

Author(s)

  • Li Wang
  • Chunli Wan
  • Joo-Hwa Tay
  • X. F. Chen
  • Xiang Liu
  • Yi Zhang

Detail(s)

Original languageEnglish
Pages (from-to)454-457
Journal / PublicationJournal of the Taiwan Institute of Chemical Engineers
Volume44
Issue number3
Publication statusPublished - 2013
Externally publishedYes

Abstract

Adsorption of Sr(II) from waters is regarded a unit operation to remediate nuclear contaminations in aquatic systems. Aerobic granules were applied as a biosorbent for removing Sr(II) from waters. At pH 6.2 and 35. °C the adsorption can reach equilibrium within 2. h while the maximum adsorption capacity was estimated as 28.8. mg/g dried biomass. Kinetic model fitting suggested that the pseudo-second-order model best correlated the kinetic data, suggesting that chemical adsorption was the rate-limiting step. Repeated adsorption and then desorption with water, K(I), Na(I) and Ca(II) desorbents suggested that neither water alone or Ca(II) could effectively desorb Sr(II) from the aerobic granule surface. Conversely, Na(I) and K(I) could effectively complex with the functional groups on polysaccharides in the extracellular polymeric substance so could effectively desorb the bound Sr(II) out of the granule surface. © 2012 Taiwan Institute of Chemical Engineers.

Research Area(s)

  • Adsorption, Desorption, Feasibility, Kinetics

Bibliographic Note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Citation Format(s)

Adsorption-desorption of strontium from waters using aerobic granules. / Wang, Li; Wan, Chunli; Lee, Duu-Jong et al.
In: Journal of the Taiwan Institute of Chemical Engineers, Vol. 44, No. 3, 2013, p. 454-457.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review