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Innovative slow-release organic carbon-source material for groundwater in situ denitrification

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Innovative slow-release organic carbon-source material for groundwater in situ denitrification. / Zhang, Dayi; Zhang, Xu; Wang, Yun; Zhou, Guizhong; Li, Guanghe.

In: Environmental Technology, Vol. 36, No. 7, 01.04.2015, p. 909-919.

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Zhang, D, Zhang, X, Wang, Y, Zhou, G & Li, G 2015, 'Innovative slow-release organic carbon-source material for groundwater in situ denitrification', Environmental Technology, vol. 36, no. 7, pp. 909-919. https://doi.org/10.1080/09593330.2014.966767

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Zhang, Dayi ; Zhang, Xu ; Wang, Yun ; Zhou, Guizhong ; Li, Guanghe. / Innovative slow-release organic carbon-source material for groundwater in situ denitrification. In: Environmental Technology. 2015 ; Vol. 36, No. 7. pp. 909-919.

Bibtex

@article{4c24211919ff4fc3b14047d583e5cd62,
title = "Innovative slow-release organic carbon-source material for groundwater in situ denitrification",
abstract = "Slow-release organic carbon-source (SOC) material, a new kind of electron donor for in situ groundwater denitrification, was prepared and evaluated in this study. With starch as a biologically utilized carbon source and polyvinyl alcohol (PVA) as a frame, this material performed controllable carbon release rates and demonstrated stable behaviour during the simulated denitrification process. Raman spectrum analysis showed that the PVA skeleton formed cross-linking network structures for hydrogen-bonded water molecules reset in low temperatures, and the starchy molecules filled in the interspace of the skeleton to form a two-phase interlocking/disperse phase structure. In a static system, carbon release processes followed the Fickian law with (1.294-6.560) × 10(-3) mg g(-1) s(-1/2) as the release coefficient. Under domestication and in situ groundwater simulation conditions, SOC material played a favourable role during denitrification, with 1.049 ± 0.165 as an average carbon-nitrogen ratio. The denitrification process followed the law of zero-order kinetics, while the dynamics parameter kN was 0.563-8.753 gN m(-3) d(-1). Generally, SOC material was suggested to be a potential carbon source (electron donor) suitable for in situ groundwater denitrification.",
keywords = "denitrification, slow-release organic carbon-source, polyvinyl alcohol (PVA), starch, groundwater",
author = "Dayi Zhang and Xu Zhang and Yun Wang and Guizhong Zhou and Guanghe Li",
year = "2015",
month = apr,
day = "1",
doi = "10.1080/09593330.2014.966767",
language = "English",
volume = "36",
pages = "909--919",
journal = "Environmental Technology",
issn = "0959-3330",
publisher = "Taylor and Francis Ltd.",
number = "7",

}

RIS

TY - JOUR

T1 - Innovative slow-release organic carbon-source material for groundwater in situ denitrification

AU - Zhang, Dayi

AU - Zhang, Xu

AU - Wang, Yun

AU - Zhou, Guizhong

AU - Li, Guanghe

PY - 2015/4/1

Y1 - 2015/4/1

N2 - Slow-release organic carbon-source (SOC) material, a new kind of electron donor for in situ groundwater denitrification, was prepared and evaluated in this study. With starch as a biologically utilized carbon source and polyvinyl alcohol (PVA) as a frame, this material performed controllable carbon release rates and demonstrated stable behaviour during the simulated denitrification process. Raman spectrum analysis showed that the PVA skeleton formed cross-linking network structures for hydrogen-bonded water molecules reset in low temperatures, and the starchy molecules filled in the interspace of the skeleton to form a two-phase interlocking/disperse phase structure. In a static system, carbon release processes followed the Fickian law with (1.294-6.560) × 10(-3) mg g(-1) s(-1/2) as the release coefficient. Under domestication and in situ groundwater simulation conditions, SOC material played a favourable role during denitrification, with 1.049 ± 0.165 as an average carbon-nitrogen ratio. The denitrification process followed the law of zero-order kinetics, while the dynamics parameter kN was 0.563-8.753 gN m(-3) d(-1). Generally, SOC material was suggested to be a potential carbon source (electron donor) suitable for in situ groundwater denitrification.

AB - Slow-release organic carbon-source (SOC) material, a new kind of electron donor for in situ groundwater denitrification, was prepared and evaluated in this study. With starch as a biologically utilized carbon source and polyvinyl alcohol (PVA) as a frame, this material performed controllable carbon release rates and demonstrated stable behaviour during the simulated denitrification process. Raman spectrum analysis showed that the PVA skeleton formed cross-linking network structures for hydrogen-bonded water molecules reset in low temperatures, and the starchy molecules filled in the interspace of the skeleton to form a two-phase interlocking/disperse phase structure. In a static system, carbon release processes followed the Fickian law with (1.294-6.560) × 10(-3) mg g(-1) s(-1/2) as the release coefficient. Under domestication and in situ groundwater simulation conditions, SOC material played a favourable role during denitrification, with 1.049 ± 0.165 as an average carbon-nitrogen ratio. The denitrification process followed the law of zero-order kinetics, while the dynamics parameter kN was 0.563-8.753 gN m(-3) d(-1). Generally, SOC material was suggested to be a potential carbon source (electron donor) suitable for in situ groundwater denitrification.

KW - denitrification

KW - slow-release organic carbon-source

KW - polyvinyl alcohol (PVA)

KW - starch

KW - groundwater

U2 - 10.1080/09593330.2014.966767

DO - 10.1080/09593330.2014.966767

M3 - Journal article

C2 - 25249000

VL - 36

SP - 909

EP - 919

JO - Environmental Technology

JF - Environmental Technology

SN - 0959-3330

IS - 7

ER -