Industrial installation is being designed for liquid radioactive waste processing followed by incorporation to cement matrix subject to further disposal. Currently the problem is being solved on selection of technology for sodium hydroxide conversion to final product incorporated into cement-like matrix ready for disposal pursuant to existing regulatory requirements. However the outputted product might be only subject to temporary storage under special conditions. Cesium cleaning from sodium and sodium processing to NaOH will be implemented under USA engineering and financial support. The first two priority objectives for BN- 350 reactor are as follows: cesium cleaning from sodium followed by sodium drain, and processing processing of liquid and solid radioactive waste accumulated during BN- 350 operation. Pursuant of modern concept on radioactive waste management applied in IAEA Member States all radioactive wastes produced during the BN- 350 operation and decommissioning are subject to processing in order to be transformed to a form suitable for long-term storage and final disposal. International Nuclear Information System (INIS) Attaching a miniature CCD spectrometer to the video port of a standard compound microscope yields a visible microspectrophotometer suitable for student investigations of fundamental spectrometry concepts,â€¦īN- 350 decommissioning problems of radioactive waste management The results showed that the expanded vermiculite had a greater affinity for oil than hydrophobized vermiculite.Incorporating Basic Optical Microscopy in the Instrumental Analysis LaboratoryĪ simple and versatile approach to incorporating basic optical microscopy in the undergraduate instrumental analysis laboratory is described. Expanded vermiculite showed better retention than hydrophobic vermiculite.

The Freundlich isotherm was the best-fit model for desorption.

Desorption studies showed that the expanded vermiculite did not desorb oil to the same extent compared to hydrophobized vermiculite. The data showed a higher adsorptive capacity by the expanded vermiculite compared to the hydrophobized vermiculite. Equilibrium studies showed that the Langmuir isotherm was the best-fit isotherm for oil removal by both expanded and hydrophobized vermiculite. Kinetic data satisfied both the Lagergren and Ho models.

Oil removal efficiencies at pH 9 were found to be 79%, 93%, 90%, 57% for standard mineral oil (SMO), Canola oil (CO), Kutwell oil (KUT45), refinery effluent (RE), respectively, in the case of expanded vermiculite, and 56%, 58%, 47%, 43% for SMO, CO, KUT45 and RE, respectively, for hydrophobized vermiculite.

A pH of 9 showed a higher removal efficiency of oil by vermiculite. The main objective of this study was to examine the removal of oil from water by expanded and hydrophobized vermiculite.

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