Download or read book Low level Liquid Waste Decontamination by Ion Exchange written by David Owen Campbell and published by . This book was released on 1991 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low level Liquid Waste Decontamination by Ion Exchange written by and published by . This book was released on 1991 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improved processes are being developed to treat contaminated liquid wastes that have been and continue to be generated at Oak Ridge National Laboratory. Both inorganic and organic ion-exchange methods have given promising results. Nickel and cobalt hexacyanoferrate(2) compounds are extremely selective for cesium removal, with distribution coefficients in excess of 106 and remarkable insensitivity to competition from sodium and potassium. They tend to lose effectiveness at pH> (approximately)11, but some formulations are useful for limited periods of time up to pH (approximately)13. Sodium titanate is selective for strontium removal at high pH. The separations are so efficient that simple batch processes can yield large decontamination factors while generating small volumes of solid waste. A resorcinol-based resin developed at the Savannah River Site gave superior cesium removal, compared with other organic ion exchangers; the distribution coefficient was limited primarily by competition from potassium and was nearly independent of sodium. The optimum pH was (approximately)12.5. It was much less effective for strontium removal, which was limited by competition from sodium. 8 refs., 6 figs., 9 tabs.

Download or read book Low radioactivity level Waste Treatment Part I written by Rowland R. Holcomb and published by . This book was released on 1963 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low level Radioactive Wastes written by Conrad P. Straub and published by . This book was released on 1964 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Treatment of Low and Intermediate level Liquid Radioactive Wastes written by International Atomic Energy Agency and published by Bernan Press(PA). This book was released on 1984 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Decontamination of Low level Liquid Waste at Oak Ridge National Laboratory Using a Scavenging precipitation Ion Exchange Process written by and published by . This book was released on 1982 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: For five and one-half years, liquid wastes at Oak Ridge National Laboratory (ORNL) which contained low levels of beta and gamma activity have been decontaminated by a scavenging-precipitation, ion exchange process (SP-IX). Some of the activity is precipitated with caustic, and the remainder is sorbed on a cation resin, Duolite CS-100. Cesium-137 activity is routinely reduced to 30 Bq/L, and 9°Sr to 0.5 Bq/L. Operation of the plant in 1977 cost $4.64 per thousand gallons (approx. 0.1 cent/L). The routine flow rate is 375 L/min.

Download or read book Experience of Handling Low Level Active Liquid Wastes at the Idaho Chemical Processing Plant written by S. F. Fairbourne and published by . This book was released on 1955 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Liquid Radioactive Waste Disposal Facility written by W. F. Swanton and published by . This book was released on 1962 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Technologies for the Treatment of Low and Intermediate Level Radioactive Liquid Wastes written by International Atomic Energy Agency and published by . This book was released on 1994 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report describes a wide spectrum of treatment processes of both aqueous and organic radioactive wastes. It briefly covers upgraded traditional and well proven processes such as chemical precipitation, ion exchange and evaporation, and focuses on rather new membrane and electrochemical processes and combinations of these processes. Methods based on the use of biological processes for the treatment of liquid radioactive wastes are described in this report for the first time. It also describes both advantages and disadvantages of the technologies mentioned.

Download or read book Practices in the Treatment of Low and Intermediate level Radioactive Wastes written by and published by . This book was released on 1966 with total page 1004 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Treatment of Radioactive Waste with Ion Exchange Membrane Electrodialyzer written by Masukuni Ito and published by . This book was released on 1962 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Management of Low level Radioactive Waste written by Melvin W. Carter and published by Pergamon. This book was released on 1979 with total page 700 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development Studies for the Treatment of ORNL Low level Liquid Waste written by and published by . This book was released on 1991 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental program is under way to investigate potential separation methods for application to specific problems relating to the management of low-level liquid wastes (LLLWs) at ORNL. This report summarizes experimental results that were acquired during fiscal year 1990 and have not been previously reported elsewhere. Measurements are presented for cesium and strontium removal from simulated high-salt waste compositions, using both inorganic ion- exchange sorbents and organic ion-exchange resins, and for one experiment with actual LLLW supernate solution from Melton Valley Storage Tank W-26, using inorganic sorbents. The purpose of the study was to acquire an extensive data base to support the development of flowsheets for decontamination of the LLLW currently stored at ORNL. Experimental measurements with inorganic ion exchangers focused on batch separations of cesium using several transition-metal hexacyanoferrate(2) compositions (ferrocyanides) and of strontium using titanium oxide-based sorbents. Cesium distribution coefficients in the range of 1 x 106 were generally observed with nickel and cobalt ferrocyanides at pH values (less-than or equal to)11, yielding DFs of about 100 with 100 ppm sorbent in a single-stage batch separation. Most organic ion-exchange resins are not very effective for cesium removal from such high salt concentrations, but a new resorcinol-based resin developed at the Savannah River Site was found to be considerably superior to any other such material tested. Several chelating resins were effective for removing strontium from the waste simulants. An ion-exchange column test successfully demonstrated the simultaneous removal of both cesium and strontium from a waste simulant solution.

Download or read book Decontamination of Savannah River Waste Supernate by Ion Exchange written by H. Katz and published by . This book was released on 1964 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nuclear Waste Cleanup Technologies and Opportunities written by Robert Noyes and published by Elsevier. This book was released on 1995-12-31 with total page 473 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the largest, most complicated and expensive environmental problems in the United States is the cleanup of nuclear wastes. The US Department of Energy (DOE) has approximately 4,000 contaminated sites covering tens of thousands of acres and replete with contaminated hazardous or radioactive waste, soil, or structures. In addition to high-level waste, it has more than 250,000 cubic meters of transuranic waste and millions of cubic meters of low-level radio-active waste. In addition, DOE is responsible for thousands of facilities awaiting decontamination, decommissioning, and dismantling. DOE and its predecessors have been involved in the management of radioactive wastes since 1943, when such wastes were first generated in significant quantities as by-products of nuclear weapons production. Waste connected with DOE's nuclear weapons complex has been accumulating as a result of various operations spanning over five decades. The cost estimates for nuclear waste cleanup in the United States have been rapidly rising. It has recently been estimated to be in a range from $200 to $350 billion. Costs could vary considerably based on future philosophies as to whether to isolate certain sites (the ""iron fence"" philosophy), or clean them up to a pristine condition (the ""greenfields"" philosophy). Funding will also be based on Congressional action that may reduce environmental cleanup, based on budget considerations.

Download or read book Low and Intermediate Level Radioactive Waste Management Environmental remediation and environmental management issues written by and published by . This book was released on 1993 with total page 930 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Radioactive Liquid Waste Treatment Facility Utilizing a Wiped Film Evaporator written by Allen Thieme and published by . This book was released on 1971 with total page 95 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Radioactive Liquid Waste Concentration facility utilizing wiped-film evaporation and mixed-bed ion exchange treatment has been constructed and evaluated. Low-level wastes to be treated include reactor primary coolant water, liquid decontamination waste generated at reactor sites, and decontamination, laboratory, and laundry waste generated by research laboratories utilizing radioactive isotopes. Some data are reported for processing of alkaline permanganate, hydrazine versenate, ammonium citrate, and potassium tetraborate tetrahydrate solutions. The evaporator operated trouble free and antifoam agents were not required since foaming was not a problem. Operating experience and a cost evaluation are included. (Author).