Sulfur dioxide

New process removes sulfur components from power plant emissions

harminka — Tue, 18 Aug 2009 08:07:34 -0500

The Department of Energy's Pacific Northwest National Laboratory has developed a reusable organic liquid that can pull harmful gases such as carbon dioxide or sulfur dioxide out of industrial emissions from power plants. The process could directly replace current methods and allow power plants to capture double the amount of harmful gases in a way that uses no water, less energy and saves money.

Sulfur in marine archaeological shipwrecks

harminka — Fri, 16 May 2008 10:31:07 -0500

Advanced chemical analyses reveal that, with the help of smart scavenging bacteria, sulfur and iron compounds accumulated in the timbers of the Swedish warship Vasa during her 333 years on the seabed of the Stockholm harbour. Contact with oxygen, in conjunction with the high humidity of the museum environment, causes these contaminants to produce sulfuric acid, according to a new doctoral thesis in chemistry from Stockholm University.

Tracking sulfur and nitrogen in snow provides clues to acidification

harminka — Fri, 15 Feb 2008 12:02:20 -0600

In forests of the northeastern United States, sulfate and nitrate are the dominant dissolved forms of sulfur and nitrogen in precipitation. In winter, these acidic agents accumulate in the snowpack and are released to groundwater and streams over a short period of time during spring snowmelt.

Sulfur dioxide may have helped maintain warm early Mars

harminka — Thu, 27 Dec 2007 08:34:52 -0600

Sulfur dioxide (SO2) may have played a key role in the climate and geochemistry of early Mars, geoscientists at Harvard University and the Massachusetts Institute of Technology suggest in the Dec. 21 issue of the journal Science.