Contrasting sediment and water chemistry indicates the extent of the hyporheic zone in a polluted river system.

Ciszewski, Dariusz; Aleksander-Kwaterczak, Urszula

doi:10.7494/geol.2016.42.2.151

Cited by 6 publications

(4 citation statements)

References 22 publications

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“…The share of waters from the zinc and lead mine and other industrial waters in the total Biała Przemsza River discharge is considerable and reaches 60% during low water levels [10]. As a result of water discharge from the mine, river waters and groundwaters are characterized by significantly increased mineralization and their sediments are heavily contaminated with heavy metals [11]. A large proportion of mine waters and the escape of river waters into the underlying aquifer results in lowering the river discharge amplitude [12].…”

Section: Research Areamentioning

confidence: 99%

Groundwater Chemistry in a Meander Bend of the Polluted Biała Przemsza River

Ciszewski¹

2019

Pol. J. Environ. Stud.

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Groundwater chemistry in alluvia was investigated in a meander bend of the Biała Przemsza River in its middle course at Sławków in Upper Silesia, southern Poland. Pollution of groundwater induced by inflow of river water enabled recognition of relative differences in the amount of inflowing water. Biogeochemical zonation is a characteristic feature of the investigated groundwater. Inflow of river water is most intensive in the zone of about 1/3 of the bend width, parallel to the channel. It is characterized by macroions concentrations higher than that in the river. Outside, in the central part of the bend, concentrations of macroions significantly decrease. In this part of the bend, the largest head gradient also is observed. It increases toward the apex, and close to the river channel it equals about 40 cm. Groundwaters in the distal part of the bend are the least mineralized as a result of dilution by rain water. Investigations suggest a slow exchange of the hyporheic waters because of the prevalence of sandy-silty sediments. It favours transformation of nitrates, sulphates, and iron mobility in reducing conditions. Reducing their load in the river can be remarkable over the 30 km meandering reach of this river.

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Section: Research Areamentioning

confidence: 99%

Groundwater Chemistry in a Meander Bend of the Polluted Biała Przemsza River

Ciszewski¹

2019

Pol. J. Environ. Stud.

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“…Other contaminants can be utilised as tracers to demonstrate the extent of the hyporheic zone or the extent of change in the hyporheic zone, e.g. Ciszewski and Aleksander-Kwaterczak [31] used the concentrations of zinc and cadmium in the sediment and waters of Baila Przemsza River in southern Poland to define the extent of mining-induced alteration of the hyporheic zone. However, consideration will need to be given to the geochemistry of the contaminants if they are non-conservative and are being used to provide information on permeability and flow.…”

Section: Research Methods: Hydrological Measurements and Sampling In mentioning

confidence: 99%

The Hyporheic Zone

Banks¹,

Palumbo-Roe²,

Russell³

2019

Hydrology - The Science of Water

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This chapter introduces the key concepts of the hyporheic zone. It considers the research context in terms of the Water Framework Directive and the breadth of literature associated with the hyporheic zone. The interplay between hydrological, chemical and biological processes is explained, and a range of different approaches to field sampling and monitoring are described. A framework for considering the factors contributing to the conceptualisation of the hyporheic zone is presented, with an emphasis on the importance of understanding streambed sediments and their architecture to assess hydraulic functioning and modelling of the hyporheic zone. The hyporheic zone in karst catchments is also given specific consideration.Returning to the theme of linked hydrological, biological and chemical processes, the results of two case studies demonstrate the value of integrating hydrological measurements with geochemistry in order to elucidate hyporheic zone functioning.

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“…In rivers, contaminants are transported either in solution or as solid particles in suspension. Dissolved compounds can precipitate on bedrocks or alluvia forming extensive coatings, efflorescence and crusts of iron, manganese, aluminum or salts of the other elements [8][9][10], whereas sediment-associated contaminants can infiltrate into the bed to the depths of many meters or accumulate in quiescent conditions on the channel bed [11,12]. The fresh in-channel precipitates in alluvia and sediment-associated trace metals are relatively unstable and, during floods, they are easily eroded and mixed with parent rock material, eventually accumulating on river floodplains [3].…”

Section: Introductionmentioning

confidence: 99%

Metal Mobility in a Mine-Affected Floodplain

Ciszewski

Aleksander-Kwaterczak

2020

Minerals

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The study attempted to map and predict the remobilization of metals in a floodplain which had been heavily affected by long-term Zn–Pb mining. This research, based on Zn, Cd, Pb, Ca and Fe speciation, mineralogy and the stratigraphy of sediments which had accumulated over the distance of a dozen or so km from the mine, revealed variable potential for metal mobilization. The results suggest that a drop in the water table, something to be expected after the closure of a mine, would be accompanied by a decrease in the pH of the river water and can induce the remobilization of metals associated with carbonates and exchangeable cations over the short-reach downstream of the mine. However, the mobilization of contaminants may be impeded by the alkaline, impermeable stratum of loams, which play a pivotal role in maintaining anaerobic conditions and buffering the acidity resulting from the partial degradation of sulfides. Based on the findings of the study, it can be expected that the intrinsic attenuation will limit the need for remediation works, although monitoring river water quality is recommended to determine the need for any intervention in cases where permissible quality values have been exceeded over a longer period. Results of this research can be useful as a reference for remediation works planned in other contaminated river systems experiencing water table lowering, where the mobilization of contaminants as a consequence of sediment oxidization can be expected.

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Contrasting sediment and water chemistry indicates the extent of the hyporheic zone in a polluted river system.

Cited by 6 publications

References 22 publications

Groundwater Chemistry in a Meander Bend of the Polluted Biała Przemsza River

Groundwater Chemistry in a Meander Bend of the Polluted Biała Przemsza River

The Hyporheic Zone

Metal Mobility in a Mine-Affected Floodplain

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