Ground Water Redox Reactions: An Analysis of Equilibrium State Applied to Eh Measurements and Geochemical Modeling

Lindberg, Ralph D.; Runnells, Donald D.

doi:10.1126/science.225.4665.925

Cited by 393 publications

(187 citation statements)

References 8 publications

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“…However, the two values agreed within ±50 mV. This difference is smaller than results from previous studies comparing calculated and measured Eh values (Lindberg and Runnells 1984;Stefánsson et al 2005).…”

Section: Discussioncontrasting

confidence: 72%

In situ redox potential measurements as a monitoring technique for hot spring water quality

Ioka

Muraoka

Matsuyama

et al. 2016

Sustain. Water Resour. Manag.

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Previous studies on the redox potential of hot springs have indicated that redox potential sensors display a more heightened sensitivity to the HS -/SO 4 2-redox couple, and that redox potential is not related to many different redox couples. However, previous studies have not focused on long-term, continuous measurement of hot spring aquifers. Therefore, three continuous in situ redox potential (Eh) measurements, each lasting approximately 1 month, were conducted using a platinum electrode in a 32°C hot spring aquifer. Measured Eh values were -353, -343, and -329 mV in the three monitoring campaigns.

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Section: Discussioncontrasting

confidence: 72%

In situ redox potential measurements as a monitoring technique for hot spring water quality

Ioka

Muraoka

Matsuyama

et al. 2016

Sustain. Water Resour. Manag.

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“…Usually the ORP value is used to evaluate the redox potential (Lindberg and Runnells 1984). Figure 4 shows a geological cross-section with parameters in line with the flow path.…”

Section: Major Ionsmentioning

confidence: 99%

Impact of excessive groundwater pumping on rejuvenation processes in the Bandung basin (Indonesia) as determined by hydrogeochemistry and modeling

et al. 2017

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In the Bandung basin, Indonesia, excessive groundwater pumping caused by rapid increases in industrialization and population growth has caused subsurface environmental problems, such as excessive groundwater drawdown and land subsidence. In this study, multiple hydrogeochemical techniques and numerical modeling have been applied to evaluate the recharge processes and groundwater age (rejuvenation). Although all the groundwater in the Bandung basin is recharged at the same elevation at the periphery of the basin, the water type and residence time of the shallow and deep groundwater could be clearly differentiated. However, there was significant groundwater drawdown in all the depression areas and there is evidence of groundwater mixing between the shallow and deep groundwater. The groundwater mixing was traced from the high dichlorodifluoromethane (CFC-12) concentrations in some deep groundwater samples and by estimating the rejuvenation ratio (R) in some representative observation wells. The magnitude of CFC-12 concentration, as an indicator of young groundwater, showed a good correlation with R, determined using 14 C activity in samples taken between 2008 and 2012. These correlations were confirmed with the estimation of vertical downward flux from shallower to deeper aquifers using numerical modeling. Furthermore, the change in vertical flux is affected by the change in groundwater pumping. Since the 1970s, the vertical flux increased significantly and reached approximately 15% of the total pumping amount during the 2000s, as it compensated the groundwater pumping. This study clearly revealed the processes of groundwater impact caused by excessive groundwater pumping using a combination of hydrogeochemical methods and modeling.

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“…It has been shown by Lindberg and Runnells (1984) and by Runnells and Lindberg (1990) that speciation of aqueous phase Se can not be used quantitatively to characterize equilibrium redox conditions. Nevertheless, time-trends in Se(IV)/xSe in pore waters can indicate whether solutions are becoming more reducing or more oxidizing.…”

Section: Site P9c Deeper Profile Soluble Selenium Concentrationsmentioning

confidence: 99%

Hydrological and geochemical investigations of selenium behavior at Kesterson Reservoir

Zawislanski¹

1990

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Ground Water Redox Reactions: An Analysis of Equilibrium State Applied to Eh Measurements and Geochemical Modeling

Cited by 393 publications

References 8 publications

In situ redox potential measurements as a monitoring technique for hot spring water quality

In situ redox potential measurements as a monitoring technique for hot spring water quality

Impact of excessive groundwater pumping on rejuvenation processes in the Bandung basin (Indonesia) as determined by hydrogeochemistry and modeling

Hydrological and geochemical investigations of selenium behavior at Kesterson Reservoir

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