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Erschienen in: Environmental Earth Sciences 7/2015

01.04.2015 | Original Article

Application of half-order kinetics to sulfur-utilizing autotrophic denitrification for groundwater remediation

verfasst von: Naveed Ahmed Qambrani, Yeong Sang Jung, Jae Eui Yang, Yong Sik Ok, Sang-Eun Oh

Erschienen in: Environmental Earth Sciences | Ausgabe 7/2015

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Abstract

The kinetics of sulfur-utilized autotrophic denitrification of groundwater was evaluated in batch tests to obtain kinetic parameters. Experiments were performed in media bottles containing varying NO3 -N concentrations (20, 44, and 77 mg/L) with 4.0–4.75 mm-sized sulfur particles. Alkalinity was set as a constant in all experimental containers at 850 mg/L as CaCO3. The half-order kinetic model was found to adequately describe the process efficiently, yielding denitrification rate constants of 4.36, 5.51, and 6.91 mg-N1/2/L1/2 · h in the presence of NO3 -N at 20, 44, and 77 mg/L, respectively. The rate of denitrification increased with the increasing initial NO3 -N concentrations.

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Metadaten
Titel
Application of half-order kinetics to sulfur-utilizing autotrophic denitrification for groundwater remediation
verfasst von
Naveed Ahmed Qambrani
Yeong Sang Jung
Jae Eui Yang
Yong Sik Ok
Sang-Eun Oh
Publikationsdatum
01.04.2015
Verlag
Springer Berlin Heidelberg
Erschienen in
Environmental Earth Sciences / Ausgabe 7/2015
Print ISSN: 1866-6280
Elektronische ISSN: 1866-6299
DOI
https://doi.org/10.1007/s12665-014-3641-7

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