Solid waste management-POSTER SESSION

[CEST2019_00107] Detection of Alpha-induced Radioluminescence in the Ultraviolet C Range for Nuclear Decommissioning Applications
by Crompton A.J., Gamage K.A.A.

The close range of traditional alpha radiation detectors makes detection time-consuming and potentially hazardous. Alpha-induced radioluminescence in the ultraviolet C (UVC) wavelength range (180-280 nm) may be the mechanism through which stand-off detection can be achieved. The UVTRON (Hamamatsu) solar-blind flame sensor is sensitive to photons of wavelengths between 185 – 260 nm and has a low background count due to the absorption of natural UVC in the atmosphere.

Saturday
Poster presentation in Solid waste management-POSTER SESSION
[CEST2019_00201] Characterisation of Rare Earth Elements in Waste Printed Circuit Boards (WPCBs) and their bioleaching potential
by Gonzalez-Baez A., Pantoja Munoz L., Garelick H., Purchase D.

Printed circuit boards (PCBs) are part of everyday items such as cellular phones and computers, and they constitute a significant proportion of e-waste. PCBs contain hazardous components but also valuable and critical materials such as copper, gold, silver and rare earth elements. Rare earth elements (REE) are crucial to modern hardware and due to their increasing demand and high supply risk, they are now considered to be amongst the most critical elements in the world.

Thursday
Poster presentation in Solid waste management-POSTER SESSION
[CEST2019_00856] A new sustainable approach in recovering Cobalt from “hard metal” production by-products
by Oumarou Amadou A., De Gaudenzi G.P., Marcheselli G.C., Piredda M., Serpe A.

The present work shows the capability of Maleic Acid solutions to tune the amount of Co in cemented carbide-based recovery powders with a Co content exceeding the threshold (10% Co) for industrial manufacturing in Hard Metal production and required by safety regulations. Maleic acid solutions react promptly and selectively in very mild conditions (0.5M, room temperature and pressure, EtOH as solvent) with Co contained in WC-Co sintered powders obtaining the [Co(Mal)2(H2O)4] compound almost quantitatively.

Thursday
Poster presentation in Solid waste management-POSTER SESSION