Ultrafiltration process is used for removing macromolecules and particulates from water for producing water that is potable. It is used for substituting prevailing secondary (flocculation, coagulation, sedimentation) and tertiary filtration (chlorination and sand filtration) systems which are employed in water treatment plants or as unconnected systems in remote regions which has an increasing number of populations. When treatment is being done on water that contains high suspended solids, ultrafiltration system is frequently combined into the process, using firstly primary (filtration and flotation, screening) and some treatments that are secondary like pre-treatment phases. Ultrafiltration process is a low pressure membrane process for water treatment that is designed to remove turbidity causing particles including those comprised of suspended solids, bacteria, colloidal matter and proteins. The main separation mechanism of Ultrafiltration process is size exclusion or sieving and the graphic illustrates that UF effectively removes particles in the size range of less than 0.01 to 0.1 mm. Effective removal of these contaminants in a source water results in a filtrate well suited for further treatment by downstream reverse osmosis .
The UF process is used in a wide variety of applications and industries and typical feed sources include seawater, surface, well and waste waters.
These years, the UF process has become quite popular among the wastewater treatment plant and biological sewage treatment plant. So, let’s have a look at its benefits in order to know about its popularity:
1.Efficient removal of viruses, bacteria, and other microorganisms
2.Outstanding filtration quality along with higher flux
3.High-temperature tolerance and chemical resistance for efficient membrane cleaning
4.Easy to install and handle
5.Simple, modular, vertical design permits low-cost compact systems
6.Ultrafiltration inside-out or outside-in configuration permits high solids loading and less
7.It helps in providing excellent and stable water quality with less than 0.1NTU turbidity
8.It is an energy saving and low-pressure way to purify water
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