Subsurface storage of freshwater in South Florida; a digital analysis of recoverability

Merritt, Michael L.

doi:10.3133/ofr83536

Cited by 24 publications

(8 citation statements)

References 6 publications

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“…The obvious falsity of this projection is routinely taken into account with the amendment of a mixing zone (Figure 1). The sharply delimited bubble of S early on became a bubble with transitional boundaries (Merritt 1985).…”

Section: The Asr Bubble Metaphormentioning

confidence: 99%

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Metaphors and Models: The ASR Bubble in the Floridan Aquifer

2005

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Studies at the intersection of cognitive science and linguistics have revealed the crucial role that metaphors play in shaping our thoughts about phenomena we cannot see. According to the domains interaction theory of cognition, a metaphoric expression sets up mappings between a target domain that we wish to understand and a familiar source domain. The source domain contains elements ("commonplaces") that we manipulate mentally, like parts of an analogue model, to illuminate the target domain. This paper applies the structure of domains interaction theory to analyze the dynamics of a metaphor in hydrogeology: the so-called bubble formed by water injected into an aquifer during aquifer storage and recovery (ASR). Of the four commonplaces of bubbles--(1) they are discrete; (2) they are geometrically simple; (3) they rise; and (4) they burst--we focus on the first two using both displacement and dispersion (tracer) models for both homogeneous and heterogeneous storage zones patterned from geological studies of the Suwannee Limestone of Sarasota County, Florida. The displacement model easily shows that "bottle brush" better represents the geometric complexity predicted from the known and inferred heterogeneity. There is virtually no difference, however, in the prediction of recovery efficiency using the dispersion model for a bubble (homogeneous flow zone) vs. bottle brush (heterogeneous flow zone). On the other hand, only the bottle brush reveals that unrecovered tracer is located preferentially in the low-permeability layers that lie adjacent to high-permeability channels in the flow zones.

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Section: The Asr Bubble Metaphormentioning

confidence: 99%

“…The injected water will rise. If the permeability of the storage zone is large enough (Merritt 1985), the injected water will rise, spread out beneath the overlying confining unit, and come to overlie the denser native ground water. The phenomenon is known as buoyancy stratification (e.g., Reese 2002, p. 8).…”

Section: The Asr Bubble Metaphormentioning

confidence: 99%

Metaphors and Models: The ASR Bubble in the Floridan Aquifer

2005

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“…Recovery efficiency is highly dependent on local hydrogeological conditions. Modeling studies indicate that the salinity of native groundwater in the storage zone is the single most important variable controlling ASR system performance in brackish-water aquifers, particularly during the early years of system operation [4,11,[13][14][15]. Low storage-zone salinities allow for greater mixing of injected and native groundwater and lesser buoyancy-induced movement before water-quality thresholds for the intended use of the recovered water are exceeded.…”

Section: Aquifer Storage and Recovery Conceptsmentioning

confidence: 99%

Aquifer Storage and Recovery of Treated Sewage Effluent in the Middle East

Maliva

Missimer

Winslow³

et al. 2011

Arab J Sci Eng

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Treated sewage effluent (TSE) is becoming a critical resource in arid parts of the world. The high costs of desalinated potable water and the depletion of fresh groundwater resources necessitate increased use of TSE as an important component of water resource management throughout the Middle East. TSE can replace potable-quality water in irrigation, with the latter becoming too valuable a resource to use for irrigation purposes. In urban regions of the Middle East and North Africa, excess TSE is often available because of seasonal variations in demand and supply or that the development of reuse infrastructure has not kept pace with population growth, concomitant water use and TSE generation. Aquifer storage and recovery (ASR) technology provides an opportunity to store large volumes of TSE for later beneficial use. Natural attenuation processes that occur during underground storage in an ASR system can also act to improve the quality of stored water and thus provide an opportunity to 'polish' already high-quality TSE. Aquifers containing brackish water or those depleted from over-pumping are present throughout much of the Middle East. These aquifers could potentially be used as storage zones for ASR systems. However, currently available hydrogeologic data are insufficient for assessment of potential system performance. Other key design issues are the selection of ASR system locations and storage zones so that TSE will not enter potable water supplies, and ensuring that the ASR systems will be readily integrated into existing or planned sewage treatment, TSE transmission and reuse infrastructure.

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“…Solute transport modeling studies performed by the U.S. Geological Survey (Reston, Virginia) (i.e., Merritt, 1985 , 1996 ; Quinones‐Aponte and Medina, 1995 ; Quinones‐Aponte and Wexler, 1995 ; Yobbi, 1996 , 1997 ) and as part of this investigation ( Maliva et al, 2005 ; Missimer et al, 2002 ) have examined the effects of the different hydraulic variables on the recovery efficiency of ASR systems. The dispersivity and salinity of native storage zone water were found to be particularly important variables in controlling ASR system performance.…”

Section: Hydrogeology and Aquifer Storage And Recovery System Performmentioning

confidence: 99%

Aquifer Storage and Recovery: Recent Hydrogeological Advances and System Performance

Maliva¹,

Guo²,

Missimer³

2006

Water Environment Research

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Aquifer storage and recovery (ASR) is part of the solution to the global problem of managing water resources to meet existing and future freshwater demands. However, the metaphoric ''ASR bubble'' has been burst with the realization that ASR systems are more physically and chemically complex than the general conceptualization. Aquifer heterogeneity and fluid-rock interactions can greatly affect ASR system performance. The results of modeling studies and field experiences indicate that more sophisticated data collection and solute-transport modeling are required to predict how stored water will migrate in heterogeneous aquifers and how fluid-rock interactions will affect the quality of stored water. It has been well-demonstrated, by historic experience, that ASR systems can provide very large volumes of storage at a lesser cost than other options. The challenges moving forward are to improve the success rate of ASR systems, optimize system performance, and set expectations appropriately. Water Environ. Res., 78, 2428Res., 78, (2006.

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Subsurface storage of freshwater in South Florida; a digital analysis of recoverability

Cited by 24 publications

References 6 publications

Metaphors and Models: The ASR Bubble in the Floridan Aquifer

Metaphors and Models: The ASR Bubble in the Floridan Aquifer

Aquifer Storage and Recovery of Treated Sewage Effluent in the Middle East

Aquifer Storage and Recovery: Recent Hydrogeological Advances and System Performance

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