Water Science

Sampling well water accurately can be a difficult process to conduct accurately since purging can disturb the balance in the aquifer, bu the use of submerged pumps such as a peristaltic pump By abstracting much smaller samples, there is less stress and hence movement of water in the acquifer. The quanity of water being measured at the surface will be less than that entering the acquifer. but with the use of techniques such as

Reverse Osmosis

Description of the term: Reverse Osmosis

Reverse osmosis?(RO) is a separation process that uses pressure to force a?solution?through a?membrane?that retains the?solute?on one side and allows the pure?solvent?to pass to the other side. More formally, it is the process of forcing a solvent from a region of high solute concentration through a membrane to a region of low solute concentration by applying a pressure in excess of the?osmotic pressure. This is the reverse of the normal?osmosis?process, which is the natural movement of?solvent?from an area of low solute concentration, through a membrane, to an area of high solute concentration when no external pressure is applied.?

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