In the context of the environment, "conventional filtration" refers to the process of removing contaminants or impurities from a liquid or gas using physical or chemical means. Conventional filtration can be used to treat a wide range of substances, including water, air, and industrial waste.
There are many different types of conventional filtration processes, and they can be broadly classified into two categories: physical filtration and chemical filtration. Physical filtration processes rely on the physical properties of the contaminants or impurities, such as size or charge, to separate them from the substance being treated. Chemical filtration processes, on the other hand, use chemical reactions to remove contaminants or impurities.
Sedimentation: A physical filtration process that uses gravity to separate solid contaminants or impurities from a liquid. Sedimentation can be used to treat water or other liquids to remove sediment, algae, or other types of debris.
Activated carbon filtration: A chemical filtration process that uses activated carbon to remove contaminants or impurities from a liquid or gas. Activated carbon is highly porous and has a large surface area, which makes it effective at adsorbing a wide range of contaminants.
Reverse osmosis: A physical filtration process that uses a semipermeable membrane to separate contaminants or impurities from a liquid. Reverse osmosis can be used to treat water to remove a wide range of contaminants including dissolved solids, bacteria, and viruses.