Water purification
Videos
Water purification is the process of removing undesirable chemicals, biological contaminants, suspended solids, and gases from water. The goal is to produce water that is fit for specific purposes. Mo
Station for complex water treatment SKO-10K.
Cutaway view of a typical rapid sand filter
Slow "artificial" filtration (a variation of bank filtration) into the ground at the Water purification plant Káraný, Czech Republic.
A profile of layers of gravel, sand and fine sand used in a slow sand filter plant.
Reverse osmosis
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Reverse osmosis is a water purification process that uses a semi-permeable membrane to separate water molecules from other substances. RO applies pressure to overcome osmotic pressure that favors even
Water purification
…to ion-exchange treatment. Complete removal of ions from water is possible if the right conditions are met. The water is normally pre-treated with a reverse osmosis unit to remove non-ionic organic contaminants, and with gas transfer membranes to remove carbon dioxide. A water recovery of 99% is possible if the…
RO production train, North Cape Coral Reverse Osmosis Plant
The layers of a membrane
Cutaway of a 16" RO tube
Schematic of a RO desalination system using an energy recovery pump. 1: Sea water inflow (100%, 1 bar), 2: Sea water flow (100%, 50 bar), 3: Concentrate flow (60%, 48 bar), 4: Fresh water flow (40%, 1 bar), 5: Concentrate to drain (60%,1 bar), A: Pressure recovery pump, B: Osmosis unit with membrane