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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 23 for “"Filterability"”.
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Formation and evaluation of the filterability of aerobic granules in a granular sludge membrane bioreactor
… stability in the GMBR as well as to evaluate the filterability of the granular sludge. The GMBR was operated in parallel with a SBR. In the SBR granulation was achieved after 16 days while no granulation was observed in the GMBR even after 10 weeks of operation. Filterability of the GMBR biomass, …
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A preliminary investigation of the sterile-filterability of BCS class II drug nanosuspensions prepared via wet stirred media milling
… with the ultimate goal of achieving the sterile filterability of such produced suspensions. An intensified milling process was investigated for fast production of sub-200 nm drug particles. In the second part, various formulations to stabilize NPX nanoparticles were screened. Lastly, the …
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Crystal seeding for the control of sludge properties
… the effect of certain variables on the filterability of calcium sulfate sludge resulting from lime neutralization of synthetic, return sludge seeded, sulfuric acid samples, The variables investigated were rate of mixing, rate of lime addition, degree of neutralization, return sludge …
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Studies on growth and filtration of the antagonistic biocontrol yeast Cryptococcus albidus
… the yeast harvest were investigated to improve filterability. The treatments included washing the yeast to remove suspended macromolecules, exposing the yeast suspension to a high shear environment to reduce the quantity of cell-bound polysaccharide, and varying suspension temperature. Us of …
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Factors affecting the filtration characteristics of aerobically digested sludge
… and biological mechanisms affecting sludge filterability. The results of this investigation showed that aerobic digestion can have a considerable effect on sludge filterability. The filterability of all sludges was improved with moderate aeration at 20° C. The degree of improvement depends …
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Aerobic digestion of trickling filter humus
… between digestion and the subsequent filterability of the sludge. Five individual, ten liter, batch-type digestion studies were conducted at 20°C for detention periods ranging from 22 to 38 days. Various water quality parameters were monitored during the three digestion runs of …
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An evaluation of a heat syneresis process on domestic U.S. sewage sludges
… primary sludge exhibited a marked improvement in filterability when held at a temperature of 170 to 185 °C for 20 minutes or more. The 1:1 mixture of primary and activated sludges showed this excellent dewaterability when held at temperatures as low as 145 °C for 20 minutes. Very little increase …
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Effect of carbon based nanoadditives on external gear pump performance
… some scission. To examine any issues with filterability, iii graphite and CNT suspensions were run through two filters of different size and composition and the filters where then qualitatively examined using ESEM images. The results indicate that a considerable amount of the additives were …
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The effects of pH on aerobic sludge digestion
… in the settleability, drainability and filterability of sludge digested at pH 3.5 occurred. This effect was attributed to the development of an - overwhelming protozoan population which caused observed improvement in the flocculation characteristics of the sludge.
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The effects of aerobic digestion on centrifugation
… of aeration caused a decrease in both the filterability and the centrifugation performances. Both reached their optimum peaks within the first 5 days of aeration and then gradually declined. This seems to indicate that once a sludge reaches the endogenous respiration state that sludge …
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A method for the rapid, accurate prediction of the physical properties of middle distillate fuels from LC-¹H NMR derived data
… gravity, pour point, flash point, viscosity, filterability, heat of combustion, cloud point, volume percent aromatics, residual carbon content, and initial, 10%, 50%, 90%, and end boiling points. These property predictions have accuracies approaching the error for measurement of the …
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Evaluation of the sludge blinding coefficient
… a useful characterization parameter for sludge filterability. Fresh activated sludge, activated sludge aged at room temperature, primary sludge, alum sludge, and a calcium carbonate slurry were filtered using a Buchner funnel apparatus and varying size filter media at various pressure …
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Precipitation of nickel and cobalt sulphides using different reactor configurations
… Thus, to obtain a product that has good filterability and settling ability, methods for controlling the supersaturation in precipitation reactions needs to be investigated.
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Iron recovery from a representative water treatment plant sludge
… substantial reductions in sludge volume. The filterability of the sludge was also improved. Specific resistance decreased as the pH was lowered, reaching a minimum value at a pH level of about 3.0, and then increased due to compaction. Sludge volume reduction and iron recovery did not occur …
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Comparing Ferrous Chloride and Ferrous Sulfate as Secondary Coagulants at the Beaver Water District Drinking Water Treatment Plant
… ratio (CSMR), solids settleability, and water filterability were assessed in laboratory scale bench tests and pilot plant studies as a function of percent alum dose reduction (ADR). Results from bench scale jar tests and pilot plant study showed that settled water turbidity and DOC were not …
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Development and Evaluation of Photocatalytic Linear Engineered Titanium Dioxide Nanomaterials for the Removal of Disinfection Byproduct Precursors from Drinking Water
… titanium dioxide nanoparticles in terms of filterability, settleability, surface characteristics, crystal phase structure, available surface area, photonic efficiency, and propensity to form hydroxyl radicals. The LENs were also evaluated in terms of their ability to remove disinfection …
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Projected self: the de se across dimensions and beyond pronouns
… of expressives, i.e. that they may display filterability and non-displaceability simultaneously. The next topic is that of self-reference of Japanese, a language which lacks genuine personal pronouns and where speakers may use a multitude of expressions instead for this function: a long list …
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Evaluation of Sewage Digested Sludge Conditioning and Dewatering Through Qualitative and Quantitative Laboratory Methodologies Towards Process Monitoring
… polymer dose requirements to achieve good filterability (R2 of 0.7; significance F and p<0.05). Future work is however required in order to consolidate these findings by monitoring conditioning, dewatering and η[0.1 s-1] of the digestate at full scale.
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Urinary excretion of trace metals in the streptozotocin-diabetic rat
… and kidney. Various processes, including the filterability of the metal, glomerular filtration rate, renal tubular reabsorption and transtubular secretion have been reported to influence urinary excretion of trace metals. Initial studies have been conducted to assess the influence of altered …
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