In this study, a top cover system is investigated as a control for emissions during the aftercare of new landfills and for old landfills where biogas energy production might not be profitable. Different materials were studied as landfill cover system in lab-scale columns: mechanical-biological pretreated municipal solid waste (MBP); mechanical-biological pretreated biowaste (PB); fine (PBSf) an...

use of zinc and iron oxide are common in the desulfurization process from natural gas. in thisresearch, after determinations of the size and specifications through tem and xrd for each of the metaloxides, two different size ratios were used, 0.66 for zinc oxide and 0.142 for iron oxide. further, absorption of sulfur compounds in gas (hydrogen sulfide (h2s), carbonyl sulfide (cos), methyl mercap...

In Industrial complex, major air pollutants like SO2, NOx, SPM, RPM and CO concentrations were standardised. Some site specific air pollutants like fluoride, H2S, methyl mercaptan, hydrogen chloride, vinyl chloride, etc., were also emitted from industries. Methyl mercaptan is a site specific air pollutant in SIPCOT Industrial complex, Cuddalore, TamilNadu. The presence of methyl mercaptan in th...

Methyl mercaptan production by oral bacteria is thought to be one of the main causes of oral malodor. We examined the ability of periodontopathic Porphyromonas gingivalis to produce methyl mercaptan from L-methionine and found that the invasive strains W83 and W50 produced large amounts of methyl mercaptan. We cloned and sequenced the mgl gene encoding L-methionine-alpha-deamino-gamma-mercaptom...

OBJECTIVES This study utilized the electronic medical records of six veterinary hospitals (operated by Banfield, The Pet Hospital) in the vicinity of Fairburn, Georgia, to assess the health of dogs and cats following the unintentional release of propyl mercaptan from a waste-processing facility. METHODS Standardized electronic medical records were used to define clinical syndromes (eye inflam...

Long-chain n-octadecayl mercaptan (C18H37SH)-passivated palladium nanoparticles are synthesized and characterized. The palladium nanoparticles are successfully capped by n-octadecayl mercaptan. These palladium nanoparticles have the same face-centered cubic crystalline structure as Pd in the bulk phase. The size of the capped palladium nanoparticles varies in the range of 1.3–5.5 nm for various...

The sensory profiling of Sake is very important for research and product analysis. However, a systematic flavor terminology for sake has not been defined yet. Objective reference standards are a prerequisite for improved sensory profiling. Thus, we selected 20 compounds as potential reference standards for sake aroma characteristics. In these studies reported here, a panel from our institute de...

CONTEXT In 2008, a lightning strike caused a leak of tert-butyl mercaptan from its storage tank at the Gulf South Natural Gas Pumping Station in Prichard, Alabama. On July 27, 2012, the Alabama Department of Public Health requested Centers for Disease Control and Prevention epidemiologic assistance investigating possible health effects resulting from airborne exposure to mercaptan from a contam...

Blue-green algal mats incubated anaerobically rapidly produce large amounts of volatile sulfur compounds, including hydrogen sulfide, methyl mercaptan, and dimethyl sulfide. The major organic sulfur compound is methyl mercaptan, in contrast to previous results with marine eucaryotic algae. Light inhibited production of volatile sulfur compounds, apparently because the algae then produced O2, re...

It is surprising that almost no systematic study has been devoted to methyl mercaptan, a common product of the putrefactive cleavage of proteid, in its relation to intestinal putrefaction. Nencki, 1 who discovered this substance among the products of putrefaction, obtained a small amount of it from a large quantity of human feces, and reached the conclusion that it is a usual product of intesti...