Chemical and thermal performance of crystalline silicotitanate (CST) and resorcinolformaldehyde (RF) ion exchange media were predicted for column configurations designed for installation in high level waste tanks and intended for cesium removal from radioactive waste supernates. Modeling predictions for the processing of a known Savannah River Site tank waste composition were generated. In a tw...

The experimentally investigation for dehydration of gas streams in a fixed-bed adsorption column using 4A molecular sieve was reported the first time. Different operating conditions system were performed, such as flow rate (2.0, 5.0 and 8.0 L min.-1) bed depths (10, 20 30 cm). A significantly decreased (p ≤ 0.05) exhaustion time verified result increase rate. On other hand, rupture mass transfe...

Abstract The calcium silicate hydrate (CSH) was synthesized from the solid waste residue (SWR) of Alum Factory, and used for phosphate abatement an aqueous solution. Fixed-bed column adsorption experiments were conducted at different flow rates (5, 7.5, 10 mL/min) bed depths (6, 9, 12 cm) initial pH concentrations 5 5.5 mg/L, respectively. breakthrough curve analysis developed tabulated effects...

Aspergillus niger was treated with acid and immobilized in calcium alginate matrix. The dynamic removal of Cr (VI) ion was studied using continuously fed column packed with immobilized biosorbent beads. Column experiments were carried out to study the effect of various bed heights (20, 30, 40 cm) under different flow rates (5, 7.5, 10 ml min(-1)) on efficiency of biosorption. The maximum time (...

We report a unique instance of a 66-year-old male patient with an unstable three-column thoracic extension injury at the level of T4/5 who was treated with recumbency and bracing without surgery. A posterior long segment fixation was attempted three times on two separate occasions over the course of a week with failure due to difficulty in ventilating the patient during prone positioning, cardi...