High-temperature Thermal Decomposition of Cs-adsorbed CHA-Cs and CHA-PCFC-Cs Zeolite System, and Sr-adsorbed 4A-Sr and BaA-Sr Zeolite System

The SR Domain for Synchronous Controllers A CS 263 Project

I have implemented a new scheme for describing real-time controllers. A system in this scheme consists of a set of concurrently-executing modules communicating through single-sender, multiple-receiver unbuffered channels. Intended for discrete, reactive systems, this scheme employs the synchronous model—computation and communication is instantaneous. Instantaneous computation simplifies reasoni...

A Discussion of Reversible and Irreversible Sorption for Sr, Cs, Np, and Pu

Bio - geochemical behavior of 90 Sr and 137 Cs in tropical soil

In this work TF values for Sr and Cs were measured for reference plants grown in lysimeters containing soils representative of large agricultural areas in Brazil: Ferralsol, Nitisol and Acrisol. These results were discussed in the light of pedological analyses and results from the follow sequential chemical extraction protocol: 1) slightly acidic phase containing readily bioavailable elements; ...

Sorption Removal of Cs and Sr from Radioactive Wastewater by Modified Bentonite Clay

Bentonite modified with ferrocyanides of Fe, Cu and CuK was tested for sorption of Cs137 and Sr-90 and proved to be highly selective for Cs; ferrocyanides of Cu and CuK are also good sorbents for Sr. Bentonite modified with hydroxides of Ti, Sn and Sb are good for Sr removal.

Evaluation of Cs/Sr Waste Form for Long Term Storage and Disposal

The goal of this project is to examine the potential long term performance of the proposed aluminosilicate waste/storage form for the isolation and eventual direct disposal of the cesium and strontium separated from recycled nuclear fuel. In the first phase of this work, researchers will investigate the sintering procedure to prepare the drum-like aluminosilicate waste/storage form from the as-...