It is called the filtrate.
Filtration is the removal of particles from a liquid.
Filtration refers to the mechanical or physical process of separating a solid from a liquid. Since metals have no liquid composition, they cannot be separated by filtration.
Filtration generally results in a liquid that is free of solid particles, making it purer. However, it may still contain dissolved impurities or contaminants that the filtration process does not remove.
Filtration
There are several terms for removing solids from a liquid: filtration, settling, decantation or sedimentation.
Probably "filtration" is the answer sought, although this is certainly not the only possibility.
This technique is called filtration or decanting, depending on how you do it.
The solid within the liquid
An insoluble solid can be separated by filtration from the liquid.
because a filtration is a liquid filter and we need them because they clean our water supply.That was just one reason filtration are useful.
A liquid mixture in which particles can be seen and easily separated by settling or filtration is a suspension.
Filtration is a technique that uses a porous barrier, typically a filter paper or sieve, to separate a solid from a liquid. The liquid passes through the barrier while the solid particles are retained on the filter.