Radioactive nuclides in the incinerator ashes of municipal solid wastes were determined by γ-ray spectrometry before and after the accident at the Fukushima nuclear power plant (March 11, 2011). Incinerator ash samples were collected in northern Kyushu, Japan, which is located approximately 1200 km west-southwest (WSW) of the Fukushima nuclear power plant, from April 2006 to March 2007 and from...

Advances in garbage incineration technology have made it possible to turn waste into energy. However, launching such a plant will require huge amount of investment, and the cost of operation is expensive. So it is not easy for municipal governments to adopt such technology in widespread due to shortage of fund. Private capital can be a source of fund, but return should be ensured. In this paper...

In District Heating (DH), a large number of buildings are heated from a central source by conveying steam or hot water through a network of insulated pipes. Waste-to-Energy (WTE) signifies the controlled combustion of municipal solid wastes to generate electrical and thermal energy in a power plant. Both technologies have been developed simultaneously and are used widely in Europe. In the Unite...

The thermal consequences of coal utilization are most meaningfully assessed in comparison with the form of power generation replaced by coal which is most likely nuclear. The different effects are influenced by siting decisions and the intrinsic thermal efficiencies of the two fuel systems. Nuclear power plants discharge 50% more waste Rheat to the atmosphere through cooling towers or to a wate...

Household refuse, often considered merely waste for disposal, is being considered as fuel for utility boilers [1] , for chemical feedstock for pyrol­ ysis to produce fuel gas and oil [2,3], and as media for anaerobic digestion by bacteria to produce methane [4]. Previous chemical analyses of this por­ tion of municipal solid waste were directed only at incineration [5] . The organic portion of ...

Microbial population responses to combined effects of chronic irradiation and other stressors (chemical contaminants, other sub-optimal conditions) are important for ecosystem functioning and bioremediation in radionuclide-contaminated areas. Quantitative mathematical modeling can improve our understanding of these phenomena. To identify general patterns of microbial responses to multiple stres...

After the September 11, 2001 terrorist attacks on the World Trade Center and the Pentagon, many scholars, journalists, and public officials expressed fear about the security of nuclear facilities in the United States. Terrorists could attack military bases, weapons in transit, or nuclear weapons production and dismantlement plants in order to steal a weapon or its components. Terrorists might a...

Heavy ion beam driven inertial fusion energy (IFE) power plants employ liquid wall materials to protect the structure against the energetic x-rays, ions, and debris emitted from the target following each shot. The objective of this assessment is to identify the radiological issues of the candidate liquid wall materials (Pb, LiPb, Sn, and Flibe) using the ARIES-IFE radiation chamber environment....

The ferroalloys industry has generated historically substantial solid waste. The accumulated waste causes serious problems to the environment. However, it is possible to transform the solid waste into an environment-friendly resource to serve the human being. Consequently, the construction of plants that are “environment-friendly” and that accommodate “recycling” has become a target of most fer...

Leaf-cutting ants learn to avoid plants initially harvested if they prove to be harmful for their symbiotic fungus once incorporated into the nest. At this point, waste particles removed from the fungus garden are likely to contain cues originating from both the unsuitable plant and the damaged fungus. We investigated whether leaf-cutting ant foragers learn to avoid unsuitable plants solely thr...