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SODIUM NITROPRUSSIDE AND NITRATE FOR METABOLIC INHIBITION OF SULFATE-REDUCING MICROBES TO CONTROL SULFIDE PRODUCTION

University of Calgary

Combinations of a nitroprusside, such as sodium nitroprusside (SNP; Na2[Fe(CN)5NO]. 2H2O) and a nitrate, are provided, together with methods for the combined use of the nitroprusside and the nitrate as metabolic inhibitors of microbial cultures. The microbial cultures may include sulfate reducing bacteria (SRB) in aqueous culture. This metabolic inhibition may for example be implemented in the presence of a hydrocarbon, for example in an oil reservoir or in oil field systems and facilities....

PROCESS FOR HYDROGEN PRODUCTION FROM GLYCEROL

Institut national de la recherche scientifique, CENTRE DE RECHERCHE INDUSTRIELLE DU QUEBEC (CRIQ)

The present document describes a process for production of hydrogen gas (H2) from fermentation of crude glycerol with a hydrogen producing microorganism in a bioreactor. The process comprises the step of introducing a volume of crude glycerol in a fermentation mixture which comprises a fermentation medium comprised of crude glycerol and hydrogen producing microorganisms under a fermentative hydrogen production condition, and then removing a volume of the fermentation mixture equal to the...

CLOSTRIDIUM PERFRINGENS SURFACE GLYCANS AND USES THEREOF

University of Alberta

An immunogenic glycan compound has a poly-β-1,4-ManNAc repeating-unit structure variably modified with 6-linked phosphoethanolamine and 6-linked phosphoglycerol.

INCREASED MOLYBDENUM AND SULFUR SOLUBILITY IN ALUMINOBOROSILICATE GLASSES WITH ADDED PHOSPHORUS

University of Manitoba

The incorporation of molybdenum and sulfur in aluminoborosilicate glasses was studied. The base aluminoborosilicate glass is incapable of retaining Mo and S above the level of about 1 mol%, producing crystalline alkali molybdates and sulfates. The extent of molybdenum solubility was significantly improved by substituting phosphate for a small fraction of the silicate glass-network-formers, increasing Mo incorporation by a factor of three with 5 mol% P2O5, and to nearly five times the P-free...