Topic
Depth filter
About: Depth filter is a research topic. Over the lifetime, 215 publications have been published within this topic receiving 3206 citations.
Papers published on a yearly basis
Papers
TL;DR: In this paper, polysulfone nanofibers were electrospun into membranes and their ability to remove micro-particles from solution was investigated, and the membrane had a bubble-point of 4.6μm and was able to remove above 99% of 10, 8 and 7μm particles without any permanent fouling.
367 citations
TL;DR: In this paper, a depth and surface filtration model has been developed based on the distinction between the fibres of the filter and deposited particles resulting in additional fibres inside the filter or on the filter surface.
288 citations
TL;DR: The false‐positive elevation of plasma (1→3)‐β‐ d ‐glucan level, a serodiagnostic test for deep‐seated mycosis, is suspected in patients administered with blood components.
117 citations
TL;DR: In this article, a depth filter working on the electrostatic adsorption principle based on a microporous diatomaceous earth water filter element was developed, which achieved a flowrate of 60l/h at 3bar and remove in excess of 99.99% of 25nm diameter MS2 bacteriophages from feed water between pH 5 and 9.
Abstract: The aim of this study was to develop a depth filter working on the electrostatic adsorption principle based on a microporous diatomaceous earth water filter element. The internal surface area of the highly porous elements was coated with a colloidal nanodispersion of hydrated yttrium oxide and subsequently heat-treated under reducing conditions to yield filters featuring uniformly distributed electropositive Y2O3 coatings. Filters prepared in this fashion exhibit a flowrate of 60 l/h at 3 bar and remove in excess of 99.99% of 25 nm diameter MS2 bacteriophages from feed water between pH 5 and 9.
110 citations
TL;DR: Three types of bacteriophages are used to investigate their removal during filtration and batch experiments conducted at different pH values and ionic strengths, and the existence of an additional repulsive force between PhiX174 and the filter surface is postulated.
Abstract: Ceramic filter candles, based on the natural material diatomaceous earth, are widely used to purify water at the point-of-use. Although such depth filters are known to improve drinking water quality by removing human pathogenic protozoa and bacteria, their removal regarding viruses has rarely been investigated. These filters have relatively large pore diameters compared to the physical dimension of viruses. However, viruses may be retained by adsorption mechanisms due to intermolecular and surface forces. Here, we use three types of bacteriophages to investigate their removal during filtration and batch experiments conducted at different pH values and ionic strengths. Theoretical models based on DLVO-theory are applied in order to verify experimental results and assess surface forces involved in the adsorptive process. This was done by calculation of interaction energies between the filter surface and the viruses. For two small spherically shaped viruses (MS2 and PhiX174), these filters showed no signific...
85 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 12 |
| 2020 | 7 |
| 2019 | 9 |
| 2018 | 6 |
| 2017 | 7 |
| 2016 | 2 |