Integrated simultaneous desulfurization and denitrification (ISDD) process at various COD/sulfate ratios

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review

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Author(s)

  • Chuan Chen
  • Lihong Liu
  • Wanqian Guo
  • Aijie Wang
  • Xijun Xu
  • Xu Zhou
  • Donghai Wu
  • Nanqi Ren

Detail(s)

Original languageEnglish
Pages (from-to)161-169
Journal / PublicationBioresource Technology
Volume155
Publication statusPublished - Mar 2014
Externally publishedYes

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-84892634493&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(b28a9d4f-f675-4853-b6fa-f413f48ce073).html

Abstract

The integrated simultaneous desulfurization and denitrification (ISDD) is a novel treatment process to handle sulfate and nitrate-laden wastewaters of high loadings. This study experimentally explored the effect of COD/SO42- ratio on the performance of ISDD process, particularly considering the complex interactions between sulfate-reducing bacteria (SRB), heterotrophic denitrifiers (hNRB) and autotrophic denitrifiers (aNRB). There existed an optimal COD/SO42- ratio (=1.5:1 in the present study) to reach 100% SO42- and NO3- removals and 42.6% S0 recovery. At COD/SO42-=1.5:1, the functional strains could form granules with high retention in the ISDD reactor. The microbial community analysis identified the SRB, hNRB and aNRB in the studied system, whose shifts correlated well with the noted ISDD performance change at different COD/SO42- ratio. Interactions between different groups of bacteria and the possible strategy to enhance the ISDD performance were discussed. © 2013 Elsevier Ltd.

Research Area(s)

  • Carbon to sulfate ratio, Denitrification, Denitrifiers, Desulfurization, Sulfate-reducing bacteria

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 lbscholars@cityu.edu.hk.

Citation Format(s)

[ RIS ] [ BibTeX ]
Integrated simultaneous desulfurization and denitrification (ISDD) process at various COD/sulfate ratios. / Chen, Chuan; Liu, Lihong; Lee, Duu-Jong et al.
In: Bioresource Technology, Vol. 155, 03.2014, p. 161-169.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62) › 21_Publication in refereed journal › peer-review