Selected references on saline ground-water resources of the United States

Feth, J. H.

doi:10.3133/cir499

Cited by 6 publications

(4 citation statements)

References 79 publications

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“…As expected, membranes doped with the anion-exchanger 1 provided high selectivities , for PFO – and PFOS – (log K PFO – ,Cl – pot = −7.5, log K PFOS – ,Cl – pot = −9.3). On the basis of these selectivities, no significant interference from Cl – is expected for PFO – concentrations higher than 10 –10.5 M or PFOS – concentrations higher than 10 –12.3 M when measuring in surface water or groundwater samples, in which the Cl – concentration is typically less than 1.0 mM . In samples such as seawater (Cl – concentration ≈19 g/L, i.e., 0.54 M), chloride would start to interfere when PFO – or PFOS – concentrations are lower than 10 –8 or 10 –10 M, respectively.…”

Section: Resultsmentioning

confidence: 99%

Fluorous Membrane Ion-Selective Electrodes for Perfluorinated Surfactants: Trace-Level Detection and in Situ Monitoring of Adsorption

et al. 2013

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Ion-selective electrodes (ISEs) with fluorous anion-exchanger membranes for the potentiometric detection of perfluorooctanoate (PFO(-)) and perfluorooctanesulfonate (PFOS(-)) were developed. Use of an anion-exchanger membrane doped with the tetraalkylphosphonium derivative (Rf8(CH2)2)(Rf6(CH2)2)3P(+) and an optimized measurement protocol resulted in detection limits of 2.3 × 10(-9) M (1.0 ppb) for PFO(-) and 8.6 × 10(-10) M (0.43 ppb) for PFOS(-). With their higher selectivity for PFO(-) over OH(-), membranes containing the alternative anion exchanger (Rf6(CH2)3)3PN(+)P((CH2)3Rf6)3 with a bis(phosphoranylidene)ammonium group further improved the detection limit for PFO(-) to 1.7 × 10(-10) M (0.070 ppb). These values are comparable with results obtained using well-established techniques such as gas chromatography-mass spectrometry (GC-MS), liquid chromatography-mass spectrometry (LC-MS), and liquid chromatography-tandem mass spectrometry (LC-MS-MS), but the measurement with ISEs avoids lengthy sample preconcentration, can be performed in situ, and is less costly. Even when eventual spectrometric confirmation of analyte identity is required, prescreening of large numbers of samples or in situ monitoring with ISEs may be of substantial benefit. To demonstrate a real-life application of these electrodes, in situ measurements were performed of the adsorption of PFOS(-) onto Ottawa sand, which is a standard sample often used in environmental sciences. The results obtained are consistent with those from an earlier LC-MS study, validating the usefulness of these sensors for environmental studies. Moreover, PFOS(-) was successfully measured in a background of water from Carnegie Lake.

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Section: Resultsmentioning

confidence: 99%

Fluorous Membrane Ion-Selective Electrodes for Perfluorinated Surfactants: Trace-Level Detection and in Situ Monitoring of Adsorption

et al. 2013

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“…The bibliography was compiled from a number of sources. Initially, publications were obtained from reports previously prepared on the subject of saltwater intrusion by Krieger and others (1957), Cooper and others (1964), Feth (1965), Task Committee on Saltwater Intrusion (1969), Todd (1974), Newport (1977), others (1974, 1977), Reilly and Goodman (1985), Atkinson and others (1986), and Bear and others (1999). A bibliographic listing of reports prepared as part of the USGS Regional Aquifer-System Analysis (RASA) program by Sun and others (1997) also was reviewed.…”

Section: Approachmentioning

confidence: 99%

Bibliography on the occurrence and intrusion of saltwater in aquifers along the Atlantic Coast of the United States

Barlow¹,

Wild²

2002

Open-File Report

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Freshwater aquifers along the Atlantic coast of the United States are vulnerable to the intrusion of saltwater from saline waters that bound the aquifers along their seaward margins. Incidences of saltwater intrusion have been documented along the Atlantic coast for more than 100 years. This report provides a bibliography of published litera ture relating to the occurrence and intrusion of saltwater along the Atlantic coast of the United States, including all of the coastal States from Maine to Florida (including the coast of Florida along the Gulf of Mexico). The bibliography con tains 549 references that date from 1896 to 2001. The bibliography contains references to books, journal articles, and government and other techni cal reports and maps that could be readily obtained through a scientific library. Conference papers and abstracts, unpublished manuscripts, publications in press, newspaper articles, consulting reports, and reports prepared by local or regional water companies or water districts are omitted from the bibliography. BIBLIOGRAPHY The bibliography is arranged alphabetically by State and then alphabetically by principal author; where more than one publication by the same author (or authors) is listed, the references are in chronologi cal order. A "Regional Studies" section is provided before the State listings that includes references to reports that discuss the occurrence and intrusion of saltwater within three or more States. Reports that con tain information for two States are listed for each of those States. Bibliographies are provided for Connecti cut,

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“…In the United States, there are extensive saline groundwater sources that contain total dissolved solid (TDS) concentrations between 1000 and 10,000 mg/L [ 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 ]. The volume of brackish groundwater that is available for use is quite large and geographically extensive.…”

Section: Introductionmentioning

confidence: 99%

Economics and Energy Consumption of Brackish Water Reverse Osmosis Desalination: Innovations and Impacts of Feedwater Quality

et al. 2021

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Brackish water desalination, using the reverse osmosis (BWRO) process, has become common in global regions, where vast reserves of brackish groundwater are found (e.g., the United States, North Africa). A literature survey and detailed analyses of several BWRO facilities in Florida have revealed some interesting and valuable information on the costs and energy use. Depending on the capacity, water quality, and additional scope items, the capital cost (CAPEX) ranges from USD 500 to USD 2947/m3 of the capacity (USD 690–USD 4067/m3 corrected for inflation to 2020). The highest number was associated with the City of Cape Coral North Plant, Florida, which had an expanded project scope. The general range of the operating cost (OPEX) is USD 0.39 to USD 0.66/m3 (cannot be corrected for inflation), for a range of capacities from 10,000 to 70,000 m3/d. The feed-water quality, in the range of 2000 to 6000 mg/L of the total dissolved solids, does not significantly impact the OPEX. There is a significant scaling trend, with OPEX cost reducing as plant capacity increases, but there is considerable scatter based on the pre- and post-treatment complexity. Many BWRO facilities operate with long-term increases in the salinity of the feedwater (groundwater), caused by pumping-induced vertical and horizontal migration of the higher salinity water. Any cost and energy increase that is caused by the higher feed water salinity, can be significantly mitigated by using energy recovery, which is not commonly used in BWRO operations. OPEX in BWRO systems is likely to remain relatively constant, based on the limitation on the plant capacity, caused by the brackish water availability at a given site. Seawater reverse osmosis facilities, with a very large capacity, have a lower OPEX compared to the upper range of BWRO, because of capacity scaling, special electrical energy deals, and process design certainty.

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Selected references on saline ground-water resources of the United States

Cited by 6 publications

References 79 publications

Fluorous Membrane Ion-Selective Electrodes for Perfluorinated Surfactants: Trace-Level Detection and in Situ Monitoring of Adsorption

Fluorous Membrane Ion-Selective Electrodes for Perfluorinated Surfactants: Trace-Level Detection and in Situ Monitoring of Adsorption

Bibliography on the occurrence and intrusion of saltwater in aquifers along the Atlantic Coast of the United States

Economics and Energy Consumption of Brackish Water Reverse Osmosis Desalination: Innovations and Impacts of Feedwater Quality

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