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Sulfur-based denitrification treating regeneration water from ion exchange at high performance and low cost

Tom Vandekerckhove UGent, Kanae Kobayashi, Joery Janda, Sam Van Nevel and Siegfried E. Vlaeminck (2018) BIORESOURCE TECHNOLOGY. 257. p.266-273
abstract
Autotrophic denitrification with sulfur is an underexplored alternative to heterotrophic denitrification to remove nitrate from wastewater poor in organics. The application on ion exchange regeneration water (19.4-32.1 mS cm(-1)) is novel. Three fixed bed reactors were tested at 15 degrees C for > 4 months, inoculated with activated sludge from sewage treatment. All were fast in start-up (< 10 days) with high performance (94 +/- 2% removal efficiency). pH control with NaOH rendered higher nitrate removal rates than limestone addition to the bed (211 +/- 13 vs. 102 +/- 13 mg N L-1 d(-1)), related to higher pH (6.64 vs. 6.24) and sulfur surface area. Bacterial communities were strongly enriched in Sulfurimonas (63-67%) and Thiobacillus (24-26%). In an economic comparison, sulfur-based denitrification ((sic)5.3 kg(-1) N) was 15% cheaper than methanol-based denitrification ((sic)6.22 kg(-1) N) and both treatments were opex dominated (85.9 vs. 86.5%). Overall, the technological and economic feasibility should boost further implementation of sulfurotrophic denitrification.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
journal title
BIORESOURCE TECHNOLOGY
volume
257
pages
266 - 273
Web of Science type
J
Web of Science id
000430401100033
ISSN
0960-8524
1873-2976
DOI
10.1016/j.biortech.2018.02.047
UGent publication?
yes
classification
U
id
8562241
handle
http://hdl.handle.net/1854/LU-8562241
date created
2018-05-18 11:29:25
date last changed
2018-05-18 11:29:33
@article{8562241,
  abstract     = {Autotrophic denitrification with sulfur is an underexplored alternative to heterotrophic denitrification to remove nitrate from wastewater poor in organics. The application on ion exchange regeneration water (19.4-32.1 mS cm(-1)) is novel. Three fixed bed reactors were tested at 15 degrees C for {\textrangle} 4 months, inoculated with activated sludge from sewage treatment. All were fast in start-up ({\textlangle} 10 days) with high performance (94 +/- 2\% removal efficiency). pH control with NaOH rendered higher nitrate removal rates than limestone addition to the bed (211 +/- 13 vs. 102 +/- 13 mg N L-1 d(-1)), related to higher pH (6.64 vs. 6.24) and sulfur surface area. Bacterial communities were strongly enriched in Sulfurimonas (63-67\%) and Thiobacillus (24-26\%). In an economic comparison, sulfur-based denitrification ((sic)5.3 kg(-1) N) was 15\% cheaper than methanol-based denitrification ((sic)6.22 kg(-1) N) and both treatments were opex dominated (85.9 vs. 86.5\%). Overall, the technological and economic feasibility should boost further implementation of sulfurotrophic denitrification.},
  author       = {Vandekerckhove, Tom and Kobayashi, Kanae and Janda, Joery and Van Nevel, Sam and Vlaeminck, Siegfried E.},
  issn         = {0960-8524},
  journal      = {BIORESOURCE TECHNOLOGY},
  pages        = {266--273},
  title        = {Sulfur-based denitrification treating regeneration water from ion exchange at high performance and low cost},
  url          = {http://dx.doi.org/10.1016/j.biortech.2018.02.047},
  volume       = {257},
  year         = {2018},
}

Chicago
Vandekerckhove, Tom, Kanae Kobayashi, Joery Janda, Sam Van Nevel, and Siegfried E. Vlaeminck. 2018. “Sulfur-based Denitrification Treating Regeneration Water from Ion Exchange at High Performance and Low Cost.” Bioresource Technology 257: 266–273.
APA
Vandekerckhove, T., Kobayashi, K., Janda, J., Van Nevel, S., & Vlaeminck, S. E. (2018). Sulfur-based denitrification treating regeneration water from ion exchange at high performance and low cost. BIORESOURCE TECHNOLOGY, 257, 266–273.
Vancouver
1.
Vandekerckhove T, Kobayashi K, Janda J, Van Nevel S, Vlaeminck SE. Sulfur-based denitrification treating regeneration water from ion exchange at high performance and low cost. BIORESOURCE TECHNOLOGY. 2018;257:266–73.
MLA
Vandekerckhove, Tom, Kanae Kobayashi, Joery Janda, et al. “Sulfur-based Denitrification Treating Regeneration Water from Ion Exchange at High Performance and Low Cost.” BIORESOURCE TECHNOLOGY 257 (2018): 266–273. Print.