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

Naveed Ahmed Qambrani; Yeong Sang Jung; Jae Eui Yang; Yong Sik Ok; Sang Eun Oh

doi:10.1007/s12665-014-3641-7

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

Naveed Ahmed Qambrani, Yeong Sang Jung, Jae Eui Yang, Yong Sik Ok, Sang Eun Oh

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

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-N^1/2/L^1/2 · 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.

Original language	English
Pages (from-to)	3445-3450
Number of pages	6
Journal	Environmental Earth Sciences
Volume	73
Issue number	7
DOIs	https://doi.org/10.1007/s12665-014-3641-7
Publication status	Published - 2015 Apr
Externally published	Yes

Keywords

Half-order kinetic model
Nitrate removal
Reaction rate constants
Sulfur-denitrifying bacteria
Sulfur-utilizing autotrophic denitrification

ASJC Scopus subject areas

Global and Planetary Change
Environmental Chemistry
Water Science and Technology
Soil Science
Pollution
Geology
Earth-Surface Processes

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10.1007/s12665-014-3641-7

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title = "Application of half-order kinetics to sulfur-utilizing autotrophic denitrification for groundwater remediation",

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.",

keywords = "Half-order kinetic model, Nitrate removal, Reaction rate constants, Sulfur-denitrifying bacteria, Sulfur-utilizing autotrophic denitrification",

author = "Qambrani, {Naveed Ahmed} and Jung, {Yeong Sang} and Yang, {Jae Eui} and Ok, {Yong Sik} and Oh, {Sang Eun}",

note = "Funding Information: This work was supported by a grant from the Institute of Environmental Research at Kangwon National University. Publisher Copyright: {\textcopyright} 2014, Springer-Verlag Berlin Heidelberg.",

year = "2015",

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doi = "10.1007/s12665-014-3641-7",

language = "English",

volume = "73",

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journal = "Environmental Earth Sciences",

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T1 - Application of half-order kinetics to sulfur-utilizing autotrophic denitrification for groundwater remediation

AU - Qambrani, Naveed Ahmed

AU - Jung, Yeong Sang

AU - Yang, Jae Eui

AU - Ok, Yong Sik

AU - Oh, Sang Eun

N1 - Funding Information: This work was supported by a grant from the Institute of Environmental Research at Kangwon National University. Publisher Copyright: © 2014, Springer-Verlag Berlin Heidelberg.

PY - 2015/4

Y1 - 2015/4

N2 - 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.

AB - 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.

KW - Half-order kinetic model

KW - Nitrate removal

KW - Reaction rate constants

KW - Sulfur-denitrifying bacteria

KW - Sulfur-utilizing autotrophic denitrification

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DO - 10.1007/s12665-014-3641-7

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SN - 1866-6280

VL - 73

SP - 3445

EP - 3450

JO - Environmental Earth Sciences

JF - Environmental Earth Sciences

IS - 7

ER -

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

Abstract

Keywords

ASJC Scopus subject areas

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