For particles in suspension to settle out of the fluid in which they are entrained, and come to rest against a wall

Physical operation which is used for the separation of solids from fluids (liquids or gases) by interposing a medium through which only the fluid can pass.

We are used this in water purification for treating raw water to produce a potable product.

It is a method of filtering that uses a piece of activated carbon to remove contaminants and impurities, utilizing chemical adsorption.

it is a liquid filtration method for removing many types of large atomic molecules from smaller molecules, by forcing the liquid at high pressure through a membrane with pores (holes) just big enough to allow the small molecules to pass through. It gives you 100 % pure water.

Ozone is effect over a wide pH range and rapidly reacts with bacteria, viruses, and protozoans and has stronger germicidal properties then chlorination. Has a very strong oxidizing power with a short reaction time.

it removes all impurities.