Impacts of frozen soils on the performance of infiltration treatment facilities

Al-Houri, Zain; Barber, M.; Yonge, David R.; Ullman, Jeffrey L.; Beutel, Marc W.

doi:10.1016/j.coldregions.2009.06.002

Cited by 34 publications

(29 citation statements)

References 17 publications

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“…Because negative pressure induces water flow from unfrozen soils at greater depths, the frozen soil layer tends to have a relatively high water content (Iwata et al, ; Tokumoto et al, ). The frozen layer often has low water and air permeabilities (Burt and Williams, ; McCauley et al, ; Al Houri et al, ), which inhibits water infiltration and aeration to the underlying unfrozen soil. When the frozen layer begins to thaw in spring, snowmelt starts to infiltrate through the thawing layer (Hayashi et al, ) and greenhouse gases accumulated beneath the frozen layer are emitted to the atmosphere (Yanai et al, ).…”

Section: Introductionmentioning

confidence: 99%

Effect of macropores on soil freezing and thawing with infiltration

Watanabe

Kugisaki

2016

Hydrological Processes

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An understanding of heat transport and water flow in unsaturated soils experiencing freezing and thawing is important when considering hydrological and thermal processes in cold regions. Macropores, such as cracks, roots, and animal holes, provide efficient conduits for enhanced infiltration, resulting in a unique distribution of water content. However, the effects of macropores on soil freezing and thawing with infiltration have not been well studied. A one‐directional soil‐column freezing and thawing experiment was conducted using unsaturated sandy and silt loams with different sizes and numbers of macropores. During freezing, macropores were found to retard the formation of the frozen layer, depending on their size and number. During thawing, water flowed through macropores in the frozen layer and reached the underlying unfrozen soil. However, infiltrated water sometimes refroze in a macropore. The ice started to form at near inner wall of the macropore, grew to the centre, and blocked flow through the macropore. The blockage ice in the macropore could not melt until the frozen layer disappeared. Improving a soil freezing model to consider these macropore effects is required. Copyright © 2016 John Wiley & Sons, Ltd.

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Section: Introductionmentioning

confidence: 99%

Effect of macropores on soil freezing and thawing with infiltration

Watanabe

Kugisaki

2016

Hydrological Processes

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“…Permeability studies for frozen rocks are also often performed in the regions where mean winter air temperatures are below zero (Al Houri et al 2009;McCauley et al 2002). In France, the permeability of non-cohesive rock mixtures of different grain-size has been studied.…”

Section: Introductionmentioning

confidence: 99%

Geofiltration Studies of Clay at the Future Radioactive Waste Repository for Ignalina Nuclear Power Plant

Klizas

2014

Journal of Environmental Engineering and Landscape Management

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Trinitrotoluene (TNT), a commonly used explosive for military and industrial applications, can cause serious environmental pollution. 28-day laboratory pot experiment was carried out applying bioaugmentation using laboratory selected bacterial strains as inoculum, biostimulation with molasses and cabbage leaf extract, and phytoremediation using rye and blue fenugreek to study the effect of these treatments on TNT removal and changes in soil microbial community responsible for contaminant degradation. Chemical analyses revealed significant decreases in TNT concentrations, including reduction of some of the TNT to its amino derivates during the 28-day tests. The combination of bioaugmentation-biostimulation approach coupled with rye cultivation had the most profound effect on TNT degradation. Although plants enhanced the total microbial community abundance, blue fenugreek cultivation did not significantly affect the TNT degradation rate. The results from molecular analyses suggested the survival and elevation of the introduced bacterial strains throughout the experiment. Reference to this paper should be made as follows: Nõ lvak, H.; Truu, J.; Limane, B.; Truu, M.; Cepurnieks, G.; Bartkevičs, V.; Juhanson, J.; Muter, O. 2013. Microbial community changes in TNT spiked soil bioremediation trial using biostimulation, phytoremediation and bioaugmentation, Journal of Environmental Engineering and Landscape Management 21(3): 153Á162. http://dx. abstract.Clay geofiltration studies became important in Lithuania when the clays began to be used as geofiltration barriers for waste disposal sites/repositories. The clay is planned to be used also in construction of the future radioactive waste repository for the Ignalina Nuclear Power Plant. The results of investigation on Stabatiškė subformation till clay occurring at the base of the repository are given in the paper. The investigation has been performed with the purpose to determine potential dependence of clay filtration coefficient values on the number of freeze-thaw cycles and duration of filtration. The filtration coefficient for the repository till clay has been found to be greatly varying at the start of the filtration and during the experiment that lasted several days. This confirms that, during the filtration, structural changeover of clay-forming aggregates takes place with pore space volumes changing and affecting the filtration coefficient values. The filtration parameters are even more affected by freeze-thaw cycles and their number. When the clay thaw is finished the colmatation of fissure system is very slow and incomplete.

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“…In contrast, few studies have measured the hydraulic conductivity of frozen soils. Although the hydraulic conductivity is sometimes measured by using oil, antifreeze, or gases as fluids instead of water (Andersland et al, 1996; Seyfried and Murdock, 1997; McCauley et al, 2002; Al‐Houri et al, 2009; Zhao et al, 2013), this tends to overestimate the unsaturated hydraulic conductivity of frozen soil because these fluids can flow through air‐filled porosity (Zhao et al, 2013). The hydraulic conductivity can be estimated indirectly from the change in the soil water profile during freezing (Weigert and Schmidt, 2005; Watanabe and Wake, 2008).…”

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confidence: 99%

Comparison of Hydraulic Conductivity in Frozen Saturated and Unfrozen Unsaturated Soils

Watanabe

Osada

2016

Vadose Zone Journal

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Core Ideas Unfrozen water content in frozen soils with flowing water is higher than in no‐flow cases. Unfrozen water content with flowing water is higher than the thermodynamic prediction. Frozen and unfrozen soils with the same water content have the same hydraulic conductivity. Understanding the hydraulic conductivity of frozen soils near melting temperature is important in agricultural management and water balance calculation in cold regions and in the use of artificial ground freezing techniques. However, measurement of the hydraulic conductivity of frozen soils has been limited. Therefore, it is often estimated from the unsaturated hydraulic conductivity of unfrozen soil using temperature and the Clausius–Clapeyron equation, with inadequate validation. In this study, we simultaneously measured the unfrozen water content and hydraulic conductivity of three frozen soils by passing water through them and compared the results with water characteristic curves and unsaturated hydraulic conductivities of the unfrozen soils determined using the evaporation method. Using measured temperature data and water characteristic curves, the Clausius–Clapeyron equation underestimated unfrozen water contents in the frozen soils, which also resulted in underestimation of hydraulic conductivities, particularly near melting temperature. However, the unfrozen and frozen soils had similar hydraulic conductivities when their liquid water contents were the same. The hydraulic conductivity of frozen soil should be estimated from that of unfrozen soil based on the liquid (unfrozen) water content instead of the temperature.

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Impacts of frozen soils on the performance of infiltration treatment facilities

Cited by 34 publications

References 17 publications

Effect of macropores on soil freezing and thawing with infiltration

Effect of macropores on soil freezing and thawing with infiltration

Geofiltration Studies of Clay at the Future Radioactive Waste Repository for Ignalina Nuclear Power Plant

Comparison of Hydraulic Conductivity in Frozen Saturated and Unfrozen Unsaturated Soils

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