Download or read book Evaporation Studies on Oak Ridge National Laboratory Liquid Low level Waste written by and published by . This book was released on 1993 with total page 87 pages. Available in PDF, EPUB and Kindle. Book excerpt: Evaporation studies were performed with Melton Valley storage tank liquid low-level radioactive waste concentrate and with surrogates (nonradioactive) to determine the feasibility of a proposed out-of-tank-evaporation project. Bench-scale tests indicated that volume reductions ranging from 30 to 55% could be attained. Vendor-site tests were conducted (with surrogate waste forms) using a bench-scale single-stage, low-pressure (subatmospheric), low-temperature (120 to 173°F) evaporator similar to units in operation at several nuclear facilities. Vendor tests were successful; a 30% volume reduction was attained with no crystallization of solids and no foaming, as would be expected from a high pH solution. No fouling of the heat exchanger surfaces occurred during these tests. It is projected that 52,000 to 120,000 gal of water could be evaporated from the supernate stored in the Melton and Bethel Valley liquid low-level radioactive waste (LLLW) storage tanks with this type of evaporator.

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 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of the Liquid Low level Waste Evaporator Steam Coil Failure and Supporting Laboratory Studies written by and published by . This book was released on 1995 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using a remote video camera, the internals of a low-level waste evaporator tank (termed 2A2, type 304L stainless steel construction, known to have failed steam coils) were inspected. This inspection revealed at least three rather substantial holes as opposed to crack- or pit-like leak sites near the nominal solution level position on one particular steam coil. This section was removed from the evaporator vessel, and subsequent hot cell examination revealed extensive general corrosion on the process side of the coil with little or no attack on the steam side. Hot cell metallography confirmed intense general corrosion on the process side and, in addition, revealed shallow intergranular attack at the leading edge of corrosion. No pits or cracks were detected in this section of the steam coil. Laboratory corrosion tests with coupons of 304L (and other high-alloy materials) isothermally exposed in a range of solutions similar to those expected in the evaporator reveal only very low corrosion rates below 40% sodium hydroxide and the solution boiling point. However, {open_quotes}dried film{close_quotes} experiments revealed that much more dilute solutions became aggressive to stainless steel due to concentrating effects (evaporation and periodic wetting) at the air/solution interface. The high general corrosion rates observed on the failed coil section occurred at or near the air/solution interface and were attributed to such {open_quotes}splash zone{close_quotes} activity.

Download or read book Investigation of the Liquid Low level Waste Evaporator Steam Coil Failure and Supporting Laboratory Studies written by and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-06 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radioactive Waste Management written by and published by . This book was released on 1981 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Low level Waste Treatment Laboratory Studies written by and published by . This book was released on 1974 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: To aid in the final design of the proposed new ORNL Low-Level Waste Treatment Plant, evaporation studies were made with solutions simulating the eluates from the Scavenging--Precipitation Ion-Exchange or the Clarification-Ion- Exchange process, that is, 0.08 M Ca(NO/sub 3/)/sub 2/-0.34 M HNO/sub 3/ and 0.20 M Ca(NO/sub 3/)/sub 2/-3. 78 M HNO/sub 3/, respectively. Data are presented showing the variation of the nitric acid concentration in the residues and distillates as a function of the calcium concentration in the residues, the temperatures involved, and the percentage of acid removed from the residue as a function of the percentage of the initial solution volume that was evaporated. The resulting evaporator bottoms could be neutralized to a pH of 7 to 9 with 1 to 3 M NaOH without precipitate formation. (auth).

Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1974 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 1324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ERDA Energy Research Abstracts written by and published by . This book was released on 1977 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the International Conference on Decommissioning and Decontamination and on Nuclear and Hazardous Waste Management written by and published by . This book was released on 1998 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Office of Environmental Management Technical Reports written by and published by . This book was released on 1997 with total page 972 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fundamental Nuclear Energy Research written by U.S. Atomic Energy Commission. Division of Plans and Reports and published by . This book was released on 1968 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radioactive Waste Processing and Disposal written by and published by . This book was released on 1964 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Radiation Safety and Major Activities in the Atomic Energy Programs written by U.S. Atomic Energy Commission and published by . This book was released on 1957 with total page 1602 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atomic Industrial Progress and Second World Conference July December 1958 written by U.S. Atomic Energy Commission and published by . This book was released on 1959 with total page 406 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Major Activities in the Atomic Energy Programs written by U.S. Atomic Energy Commission and published by . This book was released on 1959 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: