Hydrochemical evolution of pore water in riverbed sedimentation zone during riverbank infiltration

The riverbed sedimentation zone is an important zone of hydrochemistry, and the biogeochemical action in this zone has a significant impact on groundwater quality. As the main area where hydrochemistry occurs, studying the law of hydrochemical evolution within 1 m below the riverbed is of great sign...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Shuai Lu, Shenjie Li, Zhining Liu, Xinyue Gao, Lihua Zhang, Chao Sun
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	groundwater source hydrochemical evolution influencing factors riverbank infiltration riverbed sedimentation zone Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/d2246c12d86b4c6bb587efd5846b4f3a
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:d2246c12d86b4c6bb587efd5846b4f3a
record_format	dspace
spelling	oai:doaj.org-article:d2246c12d86b4c6bb587efd5846b4f3a2021-11-05T17:13:44ZHydrochemical evolution of pore water in riverbed sedimentation zone during riverbank infiltration2709-80282709-803610.2166/aqua.2021.164https://doaj.org/article/d2246c12d86b4c6bb587efd5846b4f3a2021-08-01T00:00:00Zhttp://aqua.iwaponline.com/content/70/5/696https://doaj.org/toc/2709-8028https://doaj.org/toc/2709-8036The riverbed sedimentation zone is an important zone of hydrochemistry, and the biogeochemical action in this zone has a significant impact on groundwater quality. As the main area where hydrochemistry occurs, studying the law of hydrochemical evolution within 1 m below the riverbed is of great significance for understanding the migration and removal of river pollutants. In this study, a combination of onsite monitoring and indoor experiments was used to analyze the variation characteristics of the hydrochemical composition of pore water during riverbank infiltration, as well as the main hydrochemical effects and influencing factors. The results show that in the process of river water infiltration, a series of redox reactions occur in the riverbed sedimentation zone, and there are differences in different infiltration depths. From 0 to 20 cm below the riverbed, strong respiration and denitrification mainly occurred. Reductive dissolution of manganese minerals mainly occurred from 20 to 60 cm, and reductive dissolution of iron minerals mainly occurred from 60 to 90 cm. River water level, dissolved organic carbon content and microbial activity had varying degrees of influence on these redox effects. The recharge of river water infiltration ensures the exploitation amount of the pumping wells, but it also leads to the increase of some components in groundwater, and the extracted water cannot be directly drunk. HIGHLIGHTS The main control effect of hydrochemical evolution in the riverbed sedimentation zone is redox, and there are differences in different infiltration depths.; The redox effects were affected by river water level, dissolved organic carbon content and microbial activity.; The recharge of river water infiltration ensures the exploitation amount of the pumping wells, but it also leads to the increase of some components in groundwater.;Shuai LuShenjie LiZhining LiuXinyue GaoLihua ZhangChao SunIWA Publishingarticlegroundwater sourcehydrochemical evolutioninfluencing factorsriverbank infiltrationriverbed sedimentation zoneEnvironmental technology. Sanitary engineeringTD1-1066Environmental sciencesGE1-350ENAqua, Vol 70, Iss 5, Pp 696-709 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	groundwater source hydrochemical evolution influencing factors riverbank infiltration riverbed sedimentation zone Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350
spellingShingle	groundwater source hydrochemical evolution influencing factors riverbank infiltration riverbed sedimentation zone Environmental technology. Sanitary engineering TD1-1066 Environmental sciences GE1-350 Shuai Lu Shenjie Li Zhining Liu Xinyue Gao Lihua Zhang Chao Sun Hydrochemical evolution of pore water in riverbed sedimentation zone during riverbank infiltration
description	The riverbed sedimentation zone is an important zone of hydrochemistry, and the biogeochemical action in this zone has a significant impact on groundwater quality. As the main area where hydrochemistry occurs, studying the law of hydrochemical evolution within 1 m below the riverbed is of great significance for understanding the migration and removal of river pollutants. In this study, a combination of onsite monitoring and indoor experiments was used to analyze the variation characteristics of the hydrochemical composition of pore water during riverbank infiltration, as well as the main hydrochemical effects and influencing factors. The results show that in the process of river water infiltration, a series of redox reactions occur in the riverbed sedimentation zone, and there are differences in different infiltration depths. From 0 to 20 cm below the riverbed, strong respiration and denitrification mainly occurred. Reductive dissolution of manganese minerals mainly occurred from 20 to 60 cm, and reductive dissolution of iron minerals mainly occurred from 60 to 90 cm. River water level, dissolved organic carbon content and microbial activity had varying degrees of influence on these redox effects. The recharge of river water infiltration ensures the exploitation amount of the pumping wells, but it also leads to the increase of some components in groundwater, and the extracted water cannot be directly drunk. HIGHLIGHTS The main control effect of hydrochemical evolution in the riverbed sedimentation zone is redox, and there are differences in different infiltration depths.; The redox effects were affected by river water level, dissolved organic carbon content and microbial activity.; The recharge of river water infiltration ensures the exploitation amount of the pumping wells, but it also leads to the increase of some components in groundwater.;
format	article
author	Shuai Lu Shenjie Li Zhining Liu Xinyue Gao Lihua Zhang Chao Sun
author_facet	Shuai Lu Shenjie Li Zhining Liu Xinyue Gao Lihua Zhang Chao Sun
author_sort	Shuai Lu
title	Hydrochemical evolution of pore water in riverbed sedimentation zone during riverbank infiltration
title_short	Hydrochemical evolution of pore water in riverbed sedimentation zone during riverbank infiltration
title_full	Hydrochemical evolution of pore water in riverbed sedimentation zone during riverbank infiltration
title_fullStr	Hydrochemical evolution of pore water in riverbed sedimentation zone during riverbank infiltration
title_full_unstemmed	Hydrochemical evolution of pore water in riverbed sedimentation zone during riverbank infiltration
title_sort	hydrochemical evolution of pore water in riverbed sedimentation zone during riverbank infiltration
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/d2246c12d86b4c6bb587efd5846b4f3a
work_keys_str_mv	AT shuailu hydrochemicalevolutionofporewaterinriverbedsedimentationzoneduringriverbankinfiltration AT shenjieli hydrochemicalevolutionofporewaterinriverbedsedimentationzoneduringriverbankinfiltration AT zhiningliu hydrochemicalevolutionofporewaterinriverbedsedimentationzoneduringriverbankinfiltration AT xinyuegao hydrochemicalevolutionofporewaterinriverbedsedimentationzoneduringriverbankinfiltration AT lihuazhang hydrochemicalevolutionofporewaterinriverbedsedimentationzoneduringriverbankinfiltration AT chaosun hydrochemicalevolutionofporewaterinriverbedsedimentationzoneduringriverbankinfiltration
_version_	1718444129197752320

Hydrochemical evolution of pore water in riverbed sedimentation zone during riverbank infiltration

Ejemplares similares