Title |
Elemental sulfur-based autotrophic denitrification and denitritation: microbially catalyzed sulfur hydrolysis and nitrogen conversions
|
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Published in |
Journal of Environmental Management, February 2018
|
DOI | 10.1016/j.jenvman.2018.01.064 |
Pubmed ID | |
Authors |
Anastasiia Kostrytsia, Stefano Papirio, Luigi Frunzo, Maria Rosaria Mattei, Estefanía Porca, Gavin Collins, Piet N.L. Lens, Giovanni Esposito |
Abstract |
The hydrolysis of elemental sulfur (S0) coupled to S0-based denitrification and denitritation was investigated in batch bioassays by microbiological and modeling approaches. In the denitrification experiments, the highest obtained NO3--N removal rate was 20.9 mg/l·d. In the experiments with the biomass enriched on NO2-, a NO2--N removal rate of 10.7 mg/l·d was achieved even at a NO2--N concentration as high as 240 mg/l. The Helicobacteraceae family was only observed in the biofilm attached onto the chemically-synthesized S0 particles with a relative abundance up to 37.1%, suggesting it was the hydrolytic biomass capable of S0 solubilization in the novel surface-based model. S0-driven denitrification was modeled as a two-step process in order to explicitly account for the sequential reduction of NO3- to NO2- and then to N2 by denitrifying bacteria. |
X Demographics
Geographical breakdown
Country | Count | As % |
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Netherlands | 1 | 50% |
Ireland | 1 | 50% |
Demographic breakdown
Type | Count | As % |
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Scientists | 1 | 50% |
Science communicators (journalists, bloggers, editors) | 1 | 50% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
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Unknown | 72 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
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Student > Master | 12 | 17% |
Researcher | 11 | 15% |
Student > Ph. D. Student | 9 | 13% |
Student > Bachelor | 8 | 11% |
Other | 5 | 7% |
Other | 10 | 14% |
Unknown | 17 | 24% |
Readers by discipline | Count | As % |
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Environmental Science | 19 | 26% |
Engineering | 11 | 15% |
Agricultural and Biological Sciences | 6 | 8% |
Chemical Engineering | 3 | 4% |
Biochemistry, Genetics and Molecular Biology | 2 | 3% |
Other | 8 | 11% |
Unknown | 23 | 32% |