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Full-Text Articles in Physical Sciences and Mathematics
The Effect Of The Environment On The Corrosion Products And Corrosion Rates On Gas Transmission Pipelines, Brent Sherar
The Effect Of The Environment On The Corrosion Products And Corrosion Rates On Gas Transmission Pipelines, Brent Sherar
Electronic Thesis and Dissertation Repository
This thesis reports a series of investigations examining external corrosion processes along gas transmission pipelines. TransCanada PipeLines Ltd. (TCPL) has developed six proposed corrosion scenarios to describe external pipeline corrosion, based primarily on corrosion products and corrosion rates (CRs) observed at field sites. The six proposed corrosion scenarios can be divided into two groups: abiotic and biotic. The three abiotic corrosion scenarios are (1) anaerobic corrosion, (2) aerobic corrosion, and (3) anaerobic corrosion turning aerobic; while (4) anaerobic corrosion with microbial effects, (5) aerobic corrosion turning anaerobic with microbial effects, and (6) anaerobic corrosion with microbial effects turning aerobic comprise …
Cellulose- And Xylan-Degrading Thermophilic Anaerobic Bacteria From Biocompost, M. V. Sizova, J. A. Izquierdo, N. S. Panikov, L. R. Lynd
Cellulose- And Xylan-Degrading Thermophilic Anaerobic Bacteria From Biocompost, M. V. Sizova, J. A. Izquierdo, N. S. Panikov, L. R. Lynd
Dartmouth Scholarship
Nine thermophilic cellulolytic clostridial isolates and four other noncellulolytic bacterial isolates were isolated from self-heated biocompost via preliminary enrichment culture on microcrystalline cellulose. All cellulolytic isolates grew vigorously on cellulose, with the formation of either ethanol and acetate or acetate and formate as principal fermentation products as well as lactate and glycerol as minor products. In addition, two out of nine cellulolytic strains were able to utilize xylan and pretreated wood with roughly the same efficiency as for cellulose. The major products of xylan fermentation were acetate and formate, with minor contributions of lactate and ethanol. Phylogenetic analyses of 16S …
The Effect Of Incomplete Mixing Upon The Performance Of A Membrane-Coupled Anaerobic Fermentor, Ahmed Hussein Msmali, Mark I. Nelson, John M. Kavanagh
The Effect Of Incomplete Mixing Upon The Performance Of A Membrane-Coupled Anaerobic Fermentor, Ahmed Hussein Msmali, Mark I. Nelson, John M. Kavanagh
Faculty of Informatics - Papers (Archive)
We consider a model to describe the performance of a membrane-coupled anaerobic fermentor which was developed and calibrated using experimental data by Kim and Chung (2010). The model consists of six differential equations, modelling the concentration of five biochemical species and the rate of gasification. In the original work it was assumed that reactor is well-mixed. We use a two parameter mixing model to investigate the effect of incomplete mixing upon the performance of this process. The parameters in the mixing mode are the size of the stagnant region and a parameter controlling the degree of mixing between the regions. …
Heat Flux Measurements And Modeling Of Malodorous Compounds Above An Anaerobic Swine Lagoon, Rezaul Mahmood
Heat Flux Measurements And Modeling Of Malodorous Compounds Above An Anaerobic Swine Lagoon, Rezaul Mahmood
School of Natural Resources: Faculty Publications
No abstract provided.