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Showing 1 to 18 of 18 for “"Elutriation"”.
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Elutriation Technology in Heavy Mineral Separations
… and other operational parameters such as elutriation flowrate and bed level.
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Separation of Fiber From Distillers Dried Grains With Solubles Using Sieving and Elutriation
… process""; two separation methods, sieving and elutriation (air flow), were used. DDGS samples were sieved into five sieve categories. The two smallest sieve categories comprised > 40% of the original DDGS weight and had lower fiber and higher protein and fat contents. An apparatus was designed …
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Evaluation of the sludge blinding coefficient
… size distribution on β. Effects of conditioning, elutriation, supernatant removal, and replacement on β were also studied. In general, β correlated well with the average specific resistance, indicating that it could be useful in predicting a sludge filtration pattern. β was found to increase as …
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Development of the selective-shear coagulation process for ultrafine coal cleaning
… selective-shear coagulation process using an elutriation column as the separator was designed and characterized. A steady-state population balance model of the elutriation column was developed. The predictions were found to be in good agreement with experimental results.
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Comparison of lime and sodium hydroxide for the control of gas production from sewage sludges
… of calcium carbonate. Gas production after elutriation was observed in all the reactors with an initial pH less than 11.5. The volume of gas produced after elutriation decreased with increase in initial pH. An NaOH (19N) dose of 0.29 Ib/Ib of dry solids was required for permanent prevention …
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Sulphur sorbent particle effects in fluidised combustion
… sulphation kinetics, particle attrition and elutriation effects incorporated in this model is supported by experimental data for a wide range of South African sorbents. The sulphation of sorbent particles is described by a simple, two-parameter, kinetic model. No loss in physical relevance is …
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Modelling and simulation of fluidized-bed boilers and gasifiers for carbonaceous solids.
… freeboard sections. The considered effects are: elutriation, entrainment, attrition and recycling in all the three possible types of solid phases present; (f) Heat transfered to water/steam inside the tubes, steam production and tube surface temperatures in the case of boiler simulation.
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Liquid and solids management impact on nutrient ratios for in-line wastewater prefermenters
… operating conditions with regards to sludge elutriation rates, regulated at 0.7,2.2 and 3.7 kg sludge solids/m3 raw sewage. The corresponding sludge ages at these elutriation rates were calculated as 17.3, 2.5 and 7.5 days. At all three operating conditions the TKN/COD ratio increased (64, 46 …
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Development of a water sample concentrator for the concentration of bacteria in drinking water
… concentrator utilizing a membrane adsorption/elutriation procedure for bacterial recovery was developed and field-tested. Influent sample volumes of 19.0 liters were processed by the concentrator within 10 minutes. Standard MPN and membrane filtration tests were conducted to determine the …
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Coarse Particle Flotation of Coarse Gold and Gold-bearing Ore by Fluidized-bed-flotation
… time, collector dosages, aeration rate, elutriation water rate, feed rate and feed solid content. Initially, collector dosages and conditioning times were optimized by varying one factor at a time. After a detailed optimization program, it was found that a concentrate grade of 1.154 …
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Identification of new functions for BRCT domains
… synchronization with either alpha-factor or elutriation. In addition, using an adenine reversion assay, we have shown that esc4A are more mutagenic. We have demonstrated that endogenously tagged Esc4p interacts with endogenous PCNA specifically after MMS treatment, but not in undamaged or HU …
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Metabolism of supplemental iron by hepatic parenchymal and sinusoidal cells of the neonatal pig
… endothelial cells were isolated by centrifugal elutriation. One day old piglets were injected with iron-dextran (Fe-dextran) and the concentration of accumulated iron was determined in all three cell types 1, 5, and 10 days later. The concentration of iron increased markedly in all three cell …
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Some aspects of combustion of coal in fluidized beds
… fluidizing velocity and oxygen concentration. Elutriation of unburnt carbon particles was minimal with large size of feed. The presence of a large number of burning carbon particles in a continuously-fed coal-fired fluidized bed combustor reduced burning rate and temperature of individual …
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Physiological and Molecular Consequences of Large Y Chromosome Long Arm Deletions in Mice
… haploid spermatids was performed. Cellular elutriation and fractionation techniques were employed to separate spermatids at different stages of maturation and isolate different subcellular compartments. Differences in the transcriptional profile between these populations were analysed by …
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Fluidized-bed combustion of coal
… rate into two components, the first due to elutriation and the second as a result of splashing. However only qualitative conclusions have been drawn from the splashing phenomenon. The incieased ~plashing rates associated with the deeper beds may be attributed in ~art to the possible …
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Multiscale simulation of methane assisted fluidized bed biomass gasification
… particle mass transfer, attrition, and elutriation both under transient and steady-state conditions. Bed hydrodynamics is described using the two-phase theory of fluidization resulting in a network of idealized reactors. This enables the efficient solution of comprehensive gas-phase …
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Development of an automated system for extraction and quantification of soybean cyst nematode (SCN) eggs and cysts
Soybean is the world’s foremost source of vegetable protein and oil. In order to meet the growing global soybean demand for feed and biodiesel, soybean production in the US will need to increase by 28 percent over the next decade. Addressing this demand necessitates increasing efficiency of soybean …