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depth filter work?

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depth filter occurs at the same time.filter substrateandinside. The removal of particulate matter is determinedthe depth of the flow pathandtortuosity, andthe size of particlesjointly decide. These characteristics allow the depth filter to have a very high load for the removal of particulate matter.

entrapment mechanism

Usually Most Particulate Matterare naturally negatively charged., therefore, the use of a positively charged modified filter medium can effectively remove smaller size particles.charge modificationenables the filter to effectively remove particles and colloidal bodies without having a major impact on the load and pressure, and can also effectively remove negatively charged trace pollutants, such as endotoxins and nucleic acids in the fermentation broth.

affect the depth filterperformancefactorsinclude:

media

Liquid to be filtered

Target particle type

process

depth filters, because of their structure and chemical composition, usually contain two mainClarification Mechanism:

size exclusion, by sieving or interception

adsorption, by electrokinetic or hydrophobic

size exclusion is easier to understand, the following lists the effects of depth filtrationadsorption:

charge-dependent adsorption

hydrophobic adsorption

surface charge and ionic strength

and affect the depth filteradsorption performancetypically include:

Filter Material

components of the solution and buffer to be filtered

process parameters

Prepresented

2022

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