Ion-exchange minerals and disposal of radioactive wastes-- A survey of literature

Relationship of vertical distribution to annual Acknowledgments____________________________ 3 releases... __________________________________ Hll Previous work__________________________________ 4 Physicochemical composition of selected core samples-. 13 Methods and equipment_-__-_______-_______-_____ 5 Physical characteristics.- .-__________________ 13 Core sampling________________________________ 5 Mineralogical characteristics-________________ 16 Core counting__________________________________ 5 Chemical characteristics_________________________ 19 Physicochemical analysis of sediment______________ 6 Correlations of physicochemical characteristics and Core sampling results_______________________________ 7 radionuclide content___________-______________ 19 Variation of radionuclide content with depth in cores__ 7 Discussion_____________________________________ 20 Gross gamma core scanning______________________ 7 Conclusions_____________-___________________-____-23 Gamma-ray spectrum core scanning_____________

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Water resources of the Delmarva Peninsula

Cushing¹,

Kantrowitz²,

Taylor³

1973

Professional Paper

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The Delmarva Peninsula comprises about 6,500 square miles on the Atlantic Coastal Plain and includes parts of Delaware, Maryland, and Virginia. The peninsula is underlain by unconsolidated sediments that range in thickness from a featheredge at the Fall Line (the northern boundary of the peninsula) to as much as 8,000 feet along parts of the Atlantic coast.Precipitation averages 43 inches per year, and streamflow averages 15 inches per year. About 672 inches of the average streamflow is overland flow, and the remaining 872 inches is ground-water discharge. The streams are generally perennial; however, low flow (7-day low flow at the 2-year recurrence interval) ranges from 0 to 1.16 cubic feet per second per square mile. Some low-flow data (in cubic feet per second per square mile) from 36 daily-record gaging stations, 25 partial-record gaging stations, and 120 miscellaneous sites are summarized for ready comparison.Drafts that may be made from specified amounts of storage with a chance of deficiency once in 5, 10, and 20 years, on a long-term average, are related to the median annual 7-day (7-day 2-year) low flow to permit preliminary estimates to Annual use of water on the peninsula in 1970 was about 137 mgd (million gallons per day), of which about 14 mgd was withdrawn from streams for irrigation supplies, and the remainder, 123 mgd, was withdrawn from the aquifers. About 75 percent of the ground-water supply was from the Quaternary aquifer and the water-table parts of the older aquifers. It is estimart;ed that the use of water on the peninsula by 2010 will be 260 mgd.The amount of fresh water that can be developed perennially on the peninsula is estimated to be 1,500 mgd. This amount is about 10 times the 1970 use and about six times the estimated use by the year 2010. Large long-term water supplies will probably have to be developed from the Quaternary aquifer. The perennial yield of this aquifer is estimated to be 1,000 mgd.

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Ion-exchange minerals and disposal of radioactive wastes-- A survey of literature

Abstract: Ion-exchange property of minerals.________ 2 Radioactive waste disposal 3 Acknowledgements-_ 4 Adsorption and ion exchange: General. Colloid science ______________ 4 Colloids defined._..^_^_ 5 Classification of colloids.___ 5 Size of colloidal particles._… Show more

Cited by 4 publications

References 203 publications

Use of local minerals in the treatment of radioactive waste

Use of local minerals in the treatment of radioactive waste

Distribution of radionuclides in bottom sediment of the Clinch River, eastern Tennessee

Water resources of the Delmarva Peninsula

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