Problems of ground disposal of nuclear wastes /

Mode of access: Internet.

Removal of nuclear bomb debris, Strontium 90-Yttrium 90, and Cesium 137-Barium 137 from water with Corps of Engineers mobile water-treating equipment /

Mode of access: Internet.

Sanitary Engineering Conference, Baltimore, Maryland : April 15-16, 1954 /

Mode of access: Internet.

Letter report to Congress and the Secretary of Energy.

Mode of access: Internet.

International nuclear spent fuel storage programs : hearing before the Subcommittees on International Security and Scientific Affairs and on International Economic Policy and Trade of the Committee on Foreign Affairs, House of Representatives, Ninety-sixth Congress, first session, May 3, 1979.

Mode of access: Internet.

Proceedings of the fourth annual Seabed Working Group meeting, Albuquerque, New Mexico USA, March 5-7, 1979 /

Mode of access: Internet.

Annual report /

Description based on: 1983-84; title from cover.

Biennial report /

Title from cover.

LLW : the Illinois approach : site identification plan and status report /

Cover title.

Statutes and regulations : (32 Illinois Administrative Code, chapter II) /

Cover title.

Environmental assessment : reference repository location, Hanford site, Washington.

"DOE/RW-0070."

Status report[s] on Clinch River Study.

UC-70

Environmental assessment, Davis Canyon Site, Utah.

At head of title: Nuclear Waste Policy Act (Section 112).

An Investigation of the destruction of ion exchange resins

Ion exchange resins are used for many purposes in various areas of science and commerce. One example is the use of cation exchange resins in the nuclear industry for the clean up of radioactively contaminated water (for example the removal of 137Cs). However, during removal of radionuclides, the resin itself becomes radioactively contaminated, and must be treated as Intermediate Level Waste. This radioactive contamination of the resin creates a disposal problem. Conventionally, there are two main avenues of disposal for industrial wastes, landfill burial or incineration. However, these are regarded as inappropriate for the disposal of the cation exchange resin involved in this project. Thus, a method involving the use of Fenton's Reagent (Hydrogen Peroxide/soluble Iron catalyst) to destroy the resin by wet oxidation has been developed. This process converts 95% of the solid resin to gaseous CO2, thus greatly reducing the volume of radioactive waste that has to be disposed of. However, hydrogen peroxide is an expensive reagent, and is a major component of the cost of any potential plant for the destruction of ion exchange resin. The aim of my project has been to discover a way of improving the efficiency of the destruction of the resin thus reducing the cost involved in the use of hydrogen peroxide. The work on this problem has been concentrated in two main areas:-1) Use of analytical techniques such as NMR and IR to follow the process of the hydrogen peroxide destruction of both resin beads and model systems such as water soluble calixarenes. 2) Use of various physical and chemical techniques in an attempt to improve the overall efficiency of hydrogen peroxide utilization. Examples of these techniques include UV irradiation, both with and without a photocatalyst, oxygen carrying molecules and various stirring regimes.

The Study of Sonar for Imaging of the Solid-Liquid Interface Inside Large Tanks

Retrieval, treatment, and disposal of high-level radioactive waste (HLW) is expected to cost between 100 and 300 billion dollars. The risk to workers, public health, and the environment are also a major area of concern for HLW. Visualization of the interface between settled solids and the optically opaque liquid is needed for retrieval of the waste from underground storage tanks. A Profiling sonar selected for this research generates 2-D image of the interface. Multiple experiments were performed to demonstrate the effectiveness of sonar in real-time monitoring the interface inside HLW tanks. First set of experiments demonstrated that objects shapes could be identified even when 30% of solids entrained in liquid, thereby mapping the interface. Simulation of sonar system validated these results. Second set of experiments confirmed the sonar’s ability in detecting the solids with density similar to the immersed liquid. Third set of experiments determined the affects of near by objects on image resolution. Final set of experiments proved the functional and chemical capabilities of sonar in caustic solution.