During last decade a huge interest has been grown in the development of nearly perfect absorber materials for applications as solar energy collectors, and, more in general, for all the thermophotovoltaic applications (TPV), so to increase the absorbed power for energy harvesting, storage and conversion as well as for the reprocessing of wasted heat in industrial processes [1, 2].
He had been promoted to take overall responsibility for managing production of uranium fuel, for the first power-generating reactors at Calder Hall and Chapelcross and for the first reprocessing of nuclear waste at Windscale.
He would continue controversial programs to study the reprocessing of nuclear waste but at a much slower pace than the Bush Administration had tried.
Focusing onto reprocessing of nuclear waste, this is currently practiced by means of solvent extraction of actinides using tributyl phosphate (TBP), known as hydro-metallurgical technique or aqueous reprocessing (e.g., PUREX), respectively.
Recycling becomes economically attractive when the cost of reprocessing waste or recycled material is less than the cost of treating and disposing of the materials or of processing new raw materials.
Most of this material was removed for reprocessing but several tonnes of waste and old fuel still lies below the pond's thick milky waters and it is the task of Steve Topping, leader of the building's decommissioning team, to ensure that this is extracted and safely stored.
One of my other ventures is a plastics business, and the cost of reprocessing its waste doesn't make it viable, sadly, it's cheaper to buy the virgin material".
He expects governments to reassess the economics of reprocessing nuclear waste into new fuel rather than allowing its continued storage.
On the controversial issue of reprocessing nuclear waste, Miller said that more R&D is needed to bring down the cost of the technology and reduce the risk of creating new stocks of bomb-ready nuclear materials.
The cycle has always been a focus of concern, from the potential hazards of uranium mining operations, through the processing of uranium into fuel, to the controlled fission process in the reactor core, and finally to the disposal or reprocessing of the fuel and related waste products.
