Filtrate

Definition - What does Filtrate mean?

Filtrate refers to liquid which has passed through the process of filtration. In filtration, all fluids are strained. Larger particles are stuck in the straining media, while tinier particles as well as liquids pass through, becoming filtrate.

It is, therefore, the end product of liquid filtration. In almost all instances, the filtrate is actually water in its purified form.

Corrosionpedia explains Filtrate

Filtration is a process where solids that have not dissolved in liquids are separated. The mixture of liquids and solids passes through the filter channels. The liquid that remains and is transferred to another reservoir is referred to as the filtrate.

Typically, filtration can be performed by physical or mechanical means. Filtration utilizes an interposing medium which only allows fluid to pass. As mentioned, any fluid that gets through is the filtrate. However, the filtration process is not yet complete once the filtrate has been generated. In sewage and water treatment, additional processes are involved in order to eliminate undesirable components.

Through filtration and the basic process of producing the filtrate, unwanted particles are separated, which aids in further purifying the water and other compounds. That is why the traditional filtration method has evolved into a process called micro-filtration, a technique ideal in sewage processing. Another is nanofiltration, which has become essential in food and groundwater processing.

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