by Support Support
Oct 22 2021
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- Last updated Oct 22, 2021
- Agricultural Irrigation, Basic water technology
Technologies used in water treatment
Reverse osmosis (RO)
Reverse osmosis is a technology used to remove a large portion of contaminants from water and to push water under pressure through a semi-permeable membrane.
Ultrafiltration (UF)
Ultrasonic filtration (UF) may be a water purification process during which water is forced through the membrane . Suspended solids and high molecular weight solvents remain on one side of the membrane and retentate side, while water and low molecular weight solutions are filtered through the membrane to the penetrating part.
Microfiltration (MF)
Microfiltration systems are designed to remove selective contaminants, including inorganic, organic, and heavy metals. Microfiltration systems provide nominal 0.2-micron filtration, do not require polymer addition, and generally require less operational attention than a resolution system.
Nanofiltration (NF)
Nanofiltration refers to a specific membrane process that rejects dissolved solvents in the approximate size range of 1 nanometer (10 angstroms) - hence the term "nanofiltration".
Different stages in water treatment
- Collection
- Screening and Straining
- Chemical Addition
- Coagulation and Flocculation
- Sedimentation and Clarification
- Filtration
- Disinfection
- Storage
- finally Distribution.