Siderophore mediated plutonium accumulation by Microbacterium flavescens (JG-9)

Article Abstract:

Soils and groundwater contaminated with actinide is a threat to human and environmental health, and the U.S. Department of Energy found many sites contaminated with large levels of Plutonium (Pu) and/or Uranium (U) in 1993. A study was conducted on Pu and U uptake mediated by the siderophore desferrioxamine-B for soil aerobe Microbacterium flavescens.

Refuse systems, Radiation Waste R&D, Reports, Hazardous waste management industry, United States. Department of Energy, Soils, Radioactive substances in, Soil radioactivity, Radioactive waste disposal, Actinide elements

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Chemical analysis of diesel engine nanoparticles using a nano-DMA/thermal desorption particle beam mass spectrometer

Article Abstract:

Studies have linked atmospheric fine particle concentrations with the exacerbation of illness among people with respiratory diseases and an increase in mortality in older people with cardiovascular and respiratory disease. Diesel engines emit a high number concentrations of nanoparticles, and the following experiment utilized a nano-differential mobility analyzer to select from diesel engine exhaust nanoparticles for chemical analysis by thermal desorption particle beam mass spectrometry.

Air Pollution Control R&D, Air pollution, Air pollution research, Diesel motor exhaust gas, Diesel emissions

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Aqueous geochemical and surface science investigation of the effect of phosphate on pyrite oxidation

Article Abstract:

The following study undertakes the examination of the impact of phosphate on the oxidation of crushed and {100} pyrite by using surface science and aqueous geochemical techniques. Acid mine damage is caused by oxidation of pyrite and other metal sulfides present in mine waste. In order to prevent acid mine drainage, it is important to examine and understand the oxidation process.

Pollution Control R&D, Mining industry, Environmental aspects, Phosphates, Pyrites

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