Multi-layer Filtration
Multi-layer Filtration - Related Videos
10:16
Synthetic, Multi-Layer, Self-Oscillating Vocal Fold Model Fabrication
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Cited by 49 •
2011
The methodology for fabricating synthetic vocal fold models is described. The models are life-sized and mimic the multi-layer structure of the human vocal folds. Results show the models to self-oscillate at pressures comparable to lung pressure and demonstrate flow-induced vibratory responses that are similar to those of human vocal folds.
01:32
Filtration and Urine Formation
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2019
The function of the kidneys is to filter, reabsorb, secrete, and excrete. Every day the kidneys filter nearly 180 liters of blood, initially removing water and solutes but ultimately returning nearly all filtrates into circulation with the help of osmoregulatory hormones. This process removes wastes and toxins but is also crucial to maintain water and electrolyte levels. Most of these functions are performed by the tiny but numerous nephrons contained within the kidneys. Blood enters the renal...
01:26
Glomerular Filtration: Net Filtration Pressure
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2025
Glomerular filtration, a key process in the kidneys, is regulated by three main pressures: Glomerular blood hydrostatic pressure (GBHP), Capsular hydrostatic pressure (CHP), and Blood colloid osmotic pressure (BCOP). GBHP, with an average value of 55 mmHg, promotes filtration by pushing water and solutes through the filtration membrane. This is balanced by two opposing forces: CHP, a "back pressure" exerted against the filtration membrane by fluid already in the capsular space and renal tubule,...
10:06
Characterization Of Multi-layered Fish Scales (Atractosteus spatula) Using Nanoindentation, X-ray CT, FTIR, and SEM
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Cited by 15 •
2014
This paper presents the methods used for probing spatially correlated chemical, structural, and mechanical properties of the multilayered scale of Atractosteus spatula (A. spatula) using nanoindentation, Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and X-ray computed tomography (X-ray CT). The experimental results have been used to investigate the design principles of protective biological materials.
00:53
Filtration
0 Views •
2024
Filtration is a physical separation process that involves passing a suspension through a porous medium to separate solids from fluids. During filtration, solids collect on the porous medium while liquids, also collectively known as the filtrate, pass through. The filtration medium is selected based on the filtration purpose, quantity, and nature of the precipitate. The general criteria for a suitable filtering medium are that it is inert, mechanically strong, nonabsorbent toward dissolved...
FAQs
Pore size primarily controls removal through size exclusion, allowing particles too large to pass through a given layer to be captured. Specialized media add another mechanism by retaining contaminants through adsorption or related surface interactions. Combining these mechanisms lets the system address both particulate contamination and contaminants that may not be removed by physical size differences alone.
Staging distributes the filtration load instead of requiring one layer to capture every contaminant at once. Layers with different functions can handle different portions of the pollution burden, which supports more efficient removal and reduces the demand placed on any individual layer. This distribution can also extend the useful life of the separate filter layers.
Particle size is a central consideration because size exclusion depends on the relationship between the contaminant and a layer's pore size. Other contaminants may require specialized media that retain them through adsorption or surface interactions. Designing layers around these differences allows the treatment system to target contaminants through mechanisms suited to their properties.
The system places layers with progressively different pore sizes and may include specialized media within the sequence. As fluid passes through, one layer can capture a particular portion of the contamination while another addresses a different fraction or uses surface retention. This staged arrangement spreads treatment across the system and helps maintain more reliable operation.
Environmental programs can apply the approach to drinking-water treatment, wastewater polishing, stormwater management, and air-quality control. These settings differ in the fluid being treated and the pollution problem being addressed, but each can benefit from dividing contaminant removal among layers. The resulting treatment supports cleaner water or air resources and more controlled pollution management.
By supporting more consistent removal across several treatment stages, the approach can contribute to cleaner resources and more reliable pollution monitoring. Its layered design also helps distribute filtration demands, which may make treatment performance more dependable over time. These characteristics are relevant when environmental programs need to manage pollution in water, wastewater, stormwater, or air.