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Showing 1 to 20 of 117 for “"mesophilic"”.
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Mesophilic Fermentative Hydrogen Production from Biomass
Hydrogen is considered a possible alternative to fossil fuels. Hydrogen can be produced through dark fermentation with 1 mol hexose yielding a maximum of 4 mol hydrogen in association with acetate production, and 2 mol hydrogen in association with butyrate production. However, an economically and …
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Mesophilic fermentative hydrogen production from sewage biosolids
The increasing cost of fossil fuels, combined with concerns about their impact on our environment has led to a renewed interest in hydrogen as a clean, sustainable, alternative energy vector. Using sewage biosolids as the substrate for fermentative hydrogen production offers several advantages over …
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Variables Affecting Gas Production in Mesophilic Anaerobic Digestion
… which influence the net gas production in mesophilic anaerobic digesters. The major variables were examined during a six year period using equipment specially designed for the purpose. Continuous operation of these pilot plants over many months produced results which shoved a relationship …
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The Mesophilic and Thermophilic Anaerobic Digestion of Instant Coffee Waste Waters
… a high level of coffee grounds was studied in mesophilic and thermophilic batch studies and mesophilic and thermophilic CSTR reactors fed daily. Samples were analysed to determine the degree of waste removal and changes in proximate composition before and after digestion. Continuous mesophilic …
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Energetics and Efficiency of Nutrient Utilization by Psychrophilic and Mesophilic Pseudomonads
Made available in DSpace on 2015-05-12T22:36:26Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7206866.PDF: 4403232 bytes, checksum: cad2a04ca7c495d7199815cbf57828d2 (MD5) Previous issue date: 1971
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Changes in Dewatering Properties Between the Thermophilic and Mesophilic Stages in TPAD Systems
… properties between the thermophilic and mesophilic phases. The study showed that while anaerobic digestion caused dewatering properties to deteriorate, sludges varied little with thermophilic SRT. Acidogenesis was essentially complete after 1.5 days. Subsequent mesophilic digestion …
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A study of psychrophilic, mesophilic, and halophilic bacteria in salt and meat curing solutions
Call number: LD2668 .T4 1950 T5
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A study of psychrophilic, mesophilic, and halophilic bacteria in salt and meat curing solutions
Call number: LD2668 .T4 1950 T5
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Kinetic Modeling of Mesophilic Digestion of Swine Manure Containing an Antibiotic Inhibitor (Methane, Biogas)
… associated with the design and operation of mesophilic digestion of swine manure containing the antibiotic chlortetracycline (CTC). The experimental design was set up to determine the effects retention time (RT) and antibiotic concentration had on the fermentation process. Also, addition of …
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Investigation of mesophilic Aeromonas: response to hydrogen peroxide and role in false-positive Colilert reaction.
Mesophilic Aeromonas are opportunistic human pathogens which produce a wide range of virulence factors and have been isolated from both untreated and chlorinated drinking waters. The presence of these microorganisms in the distribution systems suggests that Aeromonas could display an adaptive …
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Investigation of Adenylate Kinases Isolated From Mesophilic and Thermophilic Members of the Archaeal Genus Methanococcus
Construction of chimeric proteins between M. voltae and M. jannaschii AKs along with site specific mutational analysis confirm the importance of specific stabilizing interactions identified by sequence comparisons, and allow the physical characteristic of these proteins to be significantly altered. …
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Biochemical and Genetic Studies on Origin Recognition and DNA Synthesis From the Mesophilic Archaeon Methanosarcina Acetivorans
In our study, we characterized DinB and found that DinB was able to synthesize through abasic DNA and cyclobutane pyrimidine dimers, and these activities were stimulated by the cognate PCNA. Fascinatingly, unlike most translesion DNA polymerases previously described, MacDinB synthesized an …
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Impacts of the use of magnesia versus iron on mesophilic anaerobic digestion and odors in wastewater
… by comparing the roles of iron and magnesium on mesophilic anaerobic digestion, the digested effluent characteristics and odors in biosolids. Three anaerobic digesters were operated, one serving as a control with no additives, and the other two having known doses of iron and magnesium added. …
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Molecular, Biochemical, and Evolutionary Analysis of Single-Stranded Dna-Binding Proteins From the Mesophilic Archaeon Methanosarcina Acetivorans
"One of the critical proteins involved in DNA replication across the three domains of life is single-stranded DNA-binding protein. At the replication fork, these proteins bind to stabilize and protect transiently exposed ssDNA from nucleases during DNA transactions. The ssDNA-binding protein is …
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Effects of Anaerobic and Aerobic Digestion at Mesophilic and Thermophilic Temperatures on the Quantity of Carbapenem Resistance Genes in Wastewater Sludge
… reach the aim, sludge samples were obtained from mesophilic and thermophilic digesters, sludge DNA was isolated and purified, and target genes were quantified. The target genes included CRGs (blaGES, blaOXA-48 and blaIMP-27), 16S rRNA and Int1. Sharp declines of up to 96.9% in DNA extraction …
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Microbiological Quality of Ultrasonic Dental Scaler Output Water
… determined the cultivable prevalence of aerobic mesophilic heterotrophic bacteria in ultrasonic scaler output water subjected to one of two commercial biocides favorably reviewed by the American Dental Association as effective for microbial biofilm control in dental unit waterlines, and assessed …
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Fate of Antibiotic Resistance Genes During Anaerobic Digestion of Wastewater Solids
… to each pathogen and matrix in ambient and mesophilic temperature environments. Viable but nonculturable (VBNC) states are initiated by thermal treatments, such as thermophilic digestion and possibly pasteurization, and allow the persistence of pathogen cells and any ARGs contained therein …
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The effect of particulate-induced hydrodynamic stress on the bioleaching of chalcopyrite by a Sulfolobus sp.
… employed in these processes include mesophilic micro-organisms and, more recently, thermophilic microbes which have shown much promise for improving the rate and extent of leaching particularly of recalcitrant minerals such as chalcopyrite. The drawback to using high temperature …
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Effect of storage temperatures on the microbiological quality, safety, and viability of quahog clams, Mercenaria mercenaria
… define the level of quality. During the summer, mesophilic APCs containing 2% NaCI ranged from 104 to 108 CFU/g, and during the winter, mesophilic APCs with salt ranged from < 100 ESPC to 104 CFU/g. Comparatively, during the summer, mesophilic APCs containing no added NaCI ranged from < 100 ESPC …
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