Reasons for clogging of titanium rod filters
2026-06-16
Blockage of titanium rod filters occurs due to the formation of a sedimentary layer on the surface of the filter and blocking of the pore channels.
When filtering water-soluble macromolecules, their low diffusion coefficient leads to a weak outflow of the substance from the membrane surface into the main volume of the medium. The concentration of the dissolved substance on the surface of the filter increases sharply, forming a stationary gel layer. The surface settling layer may also be an adsorption layer of water-soluble polymers or a filtration cake of suspended particles accumulated on the surface of the titanium filter.
Clogging is caused by steric hindrances during the passage of suspensions and water-soluble macromolecules through the pores, adsorption of proteins and other macromolecules on the pore walls, as well as retention of poorly soluble compounds inside the filter channels.
In gas filtration, blockage occurs when dust particles accumulate on the surface of the filter in an amount that blocks gas flow, or when solid particles become embedded in the pore channels.
Any type of titanium filter blockage will cause the pressure drop to increase and filtration to slow down or stop completely. In this case, the filter element must be cleaned or regenerated by backflushing, after which the filter returns to working condition.
