Article: Variation in Biofilm Structure and Activity Along the Length of a Rising Main Sewer

Article: Hydrogen sulfide extraction could stem crude ...
Offshore;  December 1, 1998 ;     700+ words ... ... was reported that on arrival, the hydrogen sulfide content had dropped to around 85 ... outside candidate for the loss of the hydrogen sulfide, it became clear that the sour gas ... space was acting as a carrier gas for hydrogen sulfide from the oil. Regular pressure releases ...

Article: Treatment of mixed hydrogen sulfide and organic ...
Water Environment Research;  July 1, 2001 ;     700+ words ... ... publicly owned treatment works to remove hydrogen sulfide and a mixture of volatile organic ... study. The removal efficiency of hydrogen sulfide was consistently greater than 90 ... 2001). KEYWORDS: biofilter, hydrogen sulfide, volatile organic compounds, odors ...

Article: Deadly sewer gas: confined spaces can be deadly when combined ...
Plumbing & Mechanical;  November 1, 2005 ;     700+ words ... ... analysis, they determined it was hydrogen sulfide. Of course, both methane and hydrogen sulfide are constituents found in sewer gas ... OMITTED] Unlike methane, though, hydrogen sulfide is slightly heavier than air. Rather ...

Article: Meatpacker Must Cut Hydrogen Sulfide Emissions at ...
PR Newswire;  May 25, 2000 ;     700+ words ... ... posed by nearly a ton each day of hydrogen sulfide emissions at its Dakota City/South ... illegally emitted an excessive amount of hydrogen sulfide into the air. The agreement lodged ... responsible for much of the facility's hydrogen sulfide emissions; and undertake additional ...

Article: Manipulating diets may reduce hydrogen sulfide ...
Feedstuffs;  January 25, 1999 ;     700+ words ...Hydrogen sulfide gas is one of hundreds of known odor-producing ... emitted from livestock facilities. The smell of hydrogen sulfide is best described as a "rotten egg" smell. Hydrogen sulfide gas is heavier than air and tends to be in ...

Article: Investigation of Illness Associated with Exposure to ...
Journal of Environmental Health;  January 1, 2001 ;     700+ words ... ... of Health received complaints about hydrogen sulfide odors believed to be associated with ... surveys assessed whether exposures to hydrogen sulfide were associated with excess adverse ... environmental agency measured daily ambient hydrogen sulfide concentrations at both schools. No ...

Article: Air-Water Transfer of Hydrogen Sulfide: An Approach ...
Water Environment Research;  January 1, 2004 ;     700+ words ...ABSTRACT: The emissions process of hydrogen sulfide was studied to quantify air-water transfer of hydrogen sulfide in sewer networks. Hydrogen sulfide transfer across the air-water interface was investigated at different turbulence levels ...