Zonificación redox para diferentes trayectorias de flujo de aguas subterráneas durante la filtración de banco: un estudio de Caso en el río Liao, Shenyang, noreste de China

Translated title of the contribution: Redox zonation for different groundwater flow paths during bank filtration: a case study at Liao River, Shenyang, northeastern China

Xiaosi Su, Shuai Lu, Wenzhen Yuan, Nam Chil Woo, Zhenxue Dai, Weihong Dong, Shanghai Du, Xinyue Zhang

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

The spatial and temporal distribution of redox zones in an aquifer is important when designing groundwater supply systems. Redox zonation can have direct or indirect control of the biological and chemical reactions and mobility of pollutants. In this study, redox conditions are characterized by interpreting the hydrogeological conditions and water chemistry in groundwater during bank infiltration at a site in Shenyang, northeast China. The relevant redox processes and zonal differences in a shallow flow path and deeper flow path at the field scale were revealed by monitoring the redox parameters and chemistry of groundwater near the Liao River. The results show obvious horizontal and vertical components of redox zones during bank filtration. Variations in the horizontal extent of the redox zone were controlled by the different permeabilities of the riverbed sediments and aquifer with depth. Horizontally, the redox zone was situated within 17 m of the riverbank for the shallow flow path and within 200 m for the deep flow path. The vertical extent of the redox zone was affected by precipitation and seasonal river floods and extended to 10 m below the surface. During bank filtration, iron and manganese oxides or hydroxides were reductively dissolved, and arsenic that was adsorbed onto the medium surface or coprecipitated is released into the groundwater. This leads to increased arsenic content in groundwater, which poses a serious threat to water supply security.

Original languageSpanish
Pages (from-to)1573-1589
Number of pages17
JournalHydrogeology Journal
Volume26
Issue number5
DOIs
Publication statusPublished - 2018 Aug 1

Fingerprint

zonation
groundwater flow
groundwater
river
arsenic
aquifer
manganese oxide
redox conditions
water chemistry
temporal distribution
chemical reaction
iron oxide
hydroxide
infiltration
water supply
permeability
spatial distribution
pollutant
monitoring
sediment

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Earth and Planetary Sciences (miscellaneous)

Cite this

Su, Xiaosi ; Lu, Shuai ; Yuan, Wenzhen ; Woo, Nam Chil ; Dai, Zhenxue ; Dong, Weihong ; Du, Shanghai ; Zhang, Xinyue. / Zonificación redox para diferentes trayectorias de flujo de aguas subterráneas durante la filtración de banco : un estudio de Caso en el río Liao, Shenyang, noreste de China. In: Hydrogeology Journal. 2018 ; Vol. 26, No. 5. pp. 1573-1589.
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abstract = "The spatial and temporal distribution of redox zones in an aquifer is important when designing groundwater supply systems. Redox zonation can have direct or indirect control of the biological and chemical reactions and mobility of pollutants. In this study, redox conditions are characterized by interpreting the hydrogeological conditions and water chemistry in groundwater during bank infiltration at a site in Shenyang, northeast China. The relevant redox processes and zonal differences in a shallow flow path and deeper flow path at the field scale were revealed by monitoring the redox parameters and chemistry of groundwater near the Liao River. The results show obvious horizontal and vertical components of redox zones during bank filtration. Variations in the horizontal extent of the redox zone were controlled by the different permeabilities of the riverbed sediments and aquifer with depth. Horizontally, the redox zone was situated within 17 m of the riverbank for the shallow flow path and within 200 m for the deep flow path. The vertical extent of the redox zone was affected by precipitation and seasonal river floods and extended to 10 m below the surface. During bank filtration, iron and manganese oxides or hydroxides were reductively dissolved, and arsenic that was adsorbed onto the medium surface or coprecipitated is released into the groundwater. This leads to increased arsenic content in groundwater, which poses a serious threat to water supply security.",
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Zonificación redox para diferentes trayectorias de flujo de aguas subterráneas durante la filtración de banco : un estudio de Caso en el río Liao, Shenyang, noreste de China. / Su, Xiaosi; Lu, Shuai; Yuan, Wenzhen; Woo, Nam Chil; Dai, Zhenxue; Dong, Weihong; Du, Shanghai; Zhang, Xinyue.

In: Hydrogeology Journal, Vol. 26, No. 5, 01.08.2018, p. 1573-1589.

Research output: Contribution to journalArticle

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AU - Dong, Weihong

AU - Du, Shanghai

AU - Zhang, Xinyue

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