Investigative approaches to determine exchange processes in the hyporheic zone of a low permeability riverbank

Banzhaf, Stefan; Krein, Andréas; Scheytt, Traugott

doi:10.1007/s10040-011-0707-4

Cited by 18 publications

(21 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Nevertheless, comparison of the concentrations of PPCPs and EDCs in reclaimed water with those in groundwater revealed no significant correlation with distance from recharge points to the sampling points or depth of the sampling points. These findings were in accordance with those of previous studies (Banzhaf et al, 2011). For example, as shown in Table 1 and Figs.…”

Section: Occurrence Of Ppcps and Edcs In Groundwatersupporting

confidence: 95%

Occurrence and risk assessment of pharmaceuticals and personal care products and endocrine disrupting chemicals in reclaimed water and receiving groundwater in China

Xiang

et al. 2015

Ecotoxicology and Environmental Safety

107

View full text Add to dashboard Cite

Section: Occurrence Of Ppcps and Edcs In Groundwatersupporting

confidence: 95%

Occurrence and risk assessment of pharmaceuticals and personal care products and endocrine disrupting chemicals in reclaimed water and receiving groundwater in China

Xiang

et al. 2015

Ecotoxicology and Environmental Safety

107

View full text Add to dashboard Cite

“…Map of the Mess stream catchment: settlement area, drainage system, and measurement network; the field site is located at the stream gauge in Pontpierre (circle), modified from Banzhaf et al . ()…”

Section: Study Areamentioning

confidence: 97%

“…Hydraulic conductivities calculated from measurements of well‐water level after pumping tests were 1.3 × 10 −6 m s −1 at well A, 5.0 × 10 −6 m s −1 at well B, and 6.4 × 10 −7 m s −1 at well C (Banzhaf et al ., ). On the basis of these values, the hydraulic conductivity of the aquifer was classified as low.…”

Section: Study Areamentioning

confidence: 99%

“…This fact has opened new research possibilities using these organic compounds as environmental indicators even at very low concentration (Clara et al ., ; Müller et al ., ). For this work, the distribution and mobility of selected pharmaceuticals – that were already detected both in surface water and groundwater samples in previous studies carried out at the field site (Pailler et al ., ; Banzhaf et al ., ) – were monitored in the stream and the adjacent groundwater. Furthermore, the hydraulic conditions of the system stream/groundwater were investigated as they are essential for the understanding of surface water and groundwater interaction.…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Using selected pharmaceutical compounds as indicators for surface water and groundwater interaction in the hyporheic zone of a low permeability riverbank

Banzhaf

Krein²,

Scheytt

2012

Hydrological Processes

Self Cite

View full text Add to dashboard Cite

This study investigates the applicability of selected pharmaceutical compounds (e.g. sulfamethoxazole, carbamazepine, ibuprofen) as anthropogenic indicators for the interaction of surface water and groundwater in the hyporheic zone of an alluvial stream. Differences in transport behaviour and the resulting distribution of the pharmaceuticals in the riverine groundwater were evaluated. The investigated field site in the Grand Duchy of Luxembourg, Europe is represented by low permeable sediments and confined aquifer conditions. Water samples from single‐screen and multilevel observation wells installed in the riverbank at the field site were taken and analysed for selected pharmaceuticals and major ions for a period of 6 months. Surface water and groundwater levels were recorded to detect effluent and influent aquifer conditions. Nearly all pharmaceuticals that were detected in the stream were also found in the riverine groundwater. However, concentrations were significantly lower in groundwater than in surface water. A classification into mobile and sorbing/degradable pharmaceuticals based on their transport relevant properties was made and verified by the field data. Gradients with depth for some of these pharmaceuticals were documented and a more detailed understanding of the system stream/riverbank was obtained. It was demonstrated that the selected pharmaceutical compounds can be used as anthropogenic indicators at the investigated field site. However, not all compounds seem to be suitable indicators as their transport behaviour is not fully understood. Copyright © 2012 John Wiley & Sons, Ltd.

show abstract

“…Thus, fine particles can filtrate laterally into the sediments below river banks. Field observations by Banzhaf et al (2011) andGerecht et al (2011) indicated that stream water is able to move into river banks laterally for several meters. To the best of our knowledge, careful analysis of K profiles specifically for losing streams has not been conducted.…”

Section: Introductionmentioning

confidence: 99%

Gaining and losing stream reaches have opposite hydraulic conductivity distribution patterns

Chen

Dong

et al. 2013

Hydrol. Earth Syst. Sci.

View full text Add to dashboard Cite

Abstract. In gaining streams, groundwater seeps out into the streams. In losing streams, stream water moves into groundwater systems. The flow moving through the streambed sediments under these two types of hydrologic conditions is generally in opposite directions (upward vs. downward). The two opposite flow mechanisms affect the pore size and fine particle content of streambeds. Thus it is very likely that the opposite flow conditions affect the streambed hydraulic conductivity. However, comparisons of the hydraulic conductivity (K) of streambeds for losing and gaining streams are not well documented. In this study, we examined the K distribution patterns of sediments below the channel surface or stream banks for the Platte River and its tributaries in Nebraska, USA. Two contrasting vertical distribution patterns were observed from the test sites. In gaining reaches, hydraulic conductivity of the streambed decreased with the depth of the sediment cores. In losing reaches, hydraulic conductivity increased with the depth of the sediment cores. These contrasting patterns in the two types of streams were mostly attributed to flow directions during stream water and groundwater exchanges. In losing reaches, downward movement of water brought fine particle into the otherwise coarse sediment matrix, partially silting the pores. For gaining reaches, upward flow winnowed fine particles, increasing the pore spacing in the top parts of streambeds, leading to higher hydraulic conductivity in shallower parts of streambeds. These flux directions can impact K values to depths of greater than 5 m. At each study site, in situ permeameter tests were conducted to measure the K values of the shallow streambed layer. Statistical analyses indicated that K values from the sites of losing reaches were significantly different from the K values from the sites of gaining reaches.

show abstract

Investigative approaches to determine exchange processes in the hyporheic zone of a low permeability riverbank

Cited by 18 publications

References 27 publications

Occurrence and risk assessment of pharmaceuticals and personal care products and endocrine disrupting chemicals in reclaimed water and receiving groundwater in China

Occurrence and risk assessment of pharmaceuticals and personal care products and endocrine disrupting chemicals in reclaimed water and receiving groundwater in China

Using selected pharmaceutical compounds as indicators for surface water and groundwater interaction in the hyporheic zone of a low permeability riverbank

Gaining and losing stream reaches have opposite hydraulic conductivity distribution patterns

Contact Info

Product

Resources

About