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Showing 1 to 12 of 12 for “"density separation"”.
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Limiting factors in acoustic density separation of carbon particles in air
… would be a possible application of acoustic density separation. The emissions created by the combustion of hydrocarbons used in industrial processes, electricity production and transport significantly damage human health and the world at large. Particulate matter released, primarily by power …
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Approaches For Identifying And Characterizing Microplastics In Biosolids Using Density Separation And µFTIR Spectroscopy
… in a large urban city. Our approach utilizes a density separation and a Fenton digestion as main components to collect microplastics and to allow their analysis with µFTIR spectroscopy. Data analysis was achieved using an iterative comparison and cross-validation of two separate spectral …
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Separation of small particles due to density differences in a CFB riser system
Common wet density separation processes require large amounts of water, expensive wastewater cleanup, and do not effectively recover fine particles. A circulating fluidized bed riser system was developed as an exploratory system for dry separation by density that will eliminate many problems …
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The Contribution of Different Carbonaceous Material Fractions to the Sorption of Hydrophobic Organic Contaminants to Subsurface Sediments
Density separation and a series of chemical treatments evaluated using reference CMs were applied to glacially deposited subsurface sediments collected from oxidized and reduced zones of Chanute Air Force Base (AFB) in Rantoul, Illinois, in order to obtain fractions of these materials enriched in …
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Projection methods for clustering and semi-supervised classification
… of work is motivated by identifying the minimum density hyperplane separator in the finite sample setting. This objective is directly related to the problem of discovering clusters defined as connected regions of high data density, which is a widely adopted definition in non-parametric statistics …
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Evaluating the Dual Role of Municipal Wastewater Treatment Plants in the Removal Efficiency and Environmental Emission of Microplastics
… protocols such as Fenton oxidation and density separation, ensured the effective recovery and analysis of particles ranging from a few μm to several mm in size. Results indicate that while wastewater treatments, such as tertiary filtration and membrane bioreactors, achieve removal …
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Separation of abnormal spermatozoa from semen produced by bulls with impaired testicular thermoregulation
… investigate the efficiencies of selected semen separation techniques on the removal of abnormal spermatozoa. in Study 1, semen from control and partial scrotal insulation (Pl) bulls did not differ between the pre-insult and post-insult period for any variable measured. Full scrotal insulation …
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Nanoparticle - Heavy Metal Associations in Riverbed Sediments
… of initial results, it was found that low density clays were being selected for in this process and made up a major portion of the particles within the extracts. However, it was also realized that the metals of interest were associated almost exclusively with nano-sized Fe and Ti oxides. In …
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Dry Deshaling of Thermal Coals in India
… coals. The field testing confirmed that the separation performance for Indian coals is similar to that which has been achieved at sites in the United States for material in the 50 x 6 mm size range. The data indicate that material with 80% ash and higher can be rejected by the dry deshaler …
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Determining the spatial and temporal distribution of macro- and microplastics in soil and their impact on soil function.
… services. The novel high-gradient magnetic separation (HGMS) methodology was developed to overcome the challenges faced using the commonly used density separation method, and to improve recovery rates of all microplastic types, compositions and sizes regardless of soil type. HGMS was able to …
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Improving Efficiencies in Water-Based Separators Using Mathematical Analysis Tools
… were made in areas, including unit capacity and separation efficiency. One process-engineering tool, known as linear circuit analysis, identified an alternative coal spiral circuit configuration that offered improved performance while maintaining a reasonable circulating load. In light of this …
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Studies of microplastics present in sewage sludge, effects on amended agricultural soils
… have been compared, using the principle of density separation followed by filtration with size fractioning, the results in each protocol have been different. Four protocols were intercompared to assert the major and apply it on a real mud. For the validation of the method, 30 g of sludge was …