Remove Environment Remove Mercury Remove Universal
article thumbnail

Chalmers team develops method to reduce levels of mercury in sulfuric acid

Green Car Congress

Researchers at Chalmers University of Technology, Sweden, have developed a method that can reduce the levels of mercury in sulfuric acid by more than 90%, even from low levels. It is therefore a worldwide challenge that sulfuric acid often contains one of the most toxic substances: mercury.

Mercury 195
article thumbnail

ORNL study identifies more biopathways for formation of toxic methylmercury

Green Car Congress

More forms of mercury can be converted to methylmercury—a form of mercury that can be taken into the food chain and eventually can result in mercury-contaminated fish—than previously thought, according to a study led by a team of researchers from Oak Ridge National Laboratory (ORNL) published in Nature Geoscience.

Mercury 186
article thumbnail

UN: global e-waste surging; up 21% in 5 years

Green Car Congress

E-waste is a health and environmental hazard, containing toxic additives or hazardous substances such as mercury, which damages the human brain and/or coordination system. E-waste is a health and environmental hazard, containing toxic additives or hazardous substances such as mercury, which damages the human brain and/or coordination system.

Waste 259
article thumbnail

Process for Hydrogen Production from Sodium Sulfite Solutions Resulting from Capture of SO2 from Coal Flue Gas

Green Car Congress

under illumination from a low pressure mercury lamp. Results from using the ultraviolet (UV) photolytic process for production of hydrogen from aqueous Na 2 SO 3 solutions showed that the quantum efficiency of hydrogen production can reach 14.4% Huang et al. Cunping Huang, Clovis A. Article ASAP doi: 10.1021/es903766w.

Sodium 186
article thumbnail

Berkeley study finds renewable portfolio standards insufficient to meet 2030 GHG emission targets; new policy required

Green Car Congress

The least expensive way for the Western US to reduce greenhouse gas emissions enough to help prevent the worst consequences of global warming is to replace coal with renewable and other sources of energy that may include nuclear power, according to a new study by University of California, Berkeley, researchers. —Daniel Kammen.

Renewable 231
article thumbnail

Study finds heavy-petroleum fuels raising vanadium emissions; human emissions outpacing natural sources by factor of 1.7

Green Car Congress

Breathing vanadium-rich aerosols has unknown but potentially adverse health impacts, according to the researchers, who note that the human impacts on the global vanadium cycle parallel impacts on the global cycles for lead and mercury. Duke Professor Emeritus of Biogeochemistry at Duke’s Nicholas School of the Environment.

Oil-Sands 150
article thumbnail

The Tiny Star Explosions Powering Moore’s Law

Cars That Think

Supernova explosions, the catastrophic self-destruction of certain types of worn-out stars, are intimately tied to life on Earth because they are the birthplaces of heavy elements across the universe. Most of the iron in our blood and the sulfur in our amino acids originated in stars that detonated billions of years ago.

Power 142