Nano Filtration Plant

Nano Filtration Plant

Nano Filtration Plant
  • Product Description

    Nano Filtration (NF) is a membrane filtration-based method that uses nanometer sized cylindrical through-pores that pass through the membrane at 90°. Nano Filtration Membranes have pore sizes from 1-10 nanometers, smaller than that used in microfiltration and Ultra Filtration, but just larger than that in reverse osmosis. Membranes used are predominantly created from polymer thin films. Materials that are commonly used include polyethylene terephthalate or metals such as aluminum. Pore dimensions are controlled by pH, temperature and time during development with pore densities ranging from 1 to 106 pores per cm2. Membranes made from polyethylene terephthalate and other similar materials, are referred to as "track-etch" membranes, named after the way the pores on the membranes are made. "Tracking" involves bombarding the polymer thin film with high energy particles. This result in making tracks that are chemically developed into the membrane, or "etched" into the membrane, which are the pores. Membranes created from metal such as alumina membranes, are made by electrochemically growing a thin layer of aluminum oxide from aluminum metal in an acidic medium.

    Advantages of Nano Filtration over Conventional Water Softener

    One of the main advantages and reasons for why Nano Filtration is considered a prime method of softening water is that during the process of retaining calcium and magnesium ions while passing smaller hydrated monovalent ions, filtration is performed without adding extra sodium ions, as used in ion exchangers. Many separation processes do not operate at room temperature (e.g. distillation), which largely increases the cost of the process when continuous heating or cooling is applied. Performing gentle molecular separation is linked with Nano Filtration that is often not included with other forms of separation processes (centrifugation). These are two of the main benefits that are associated with Nano Filtration. Nano Filtration has a very favorable benefit of being able to process large volumes and continuously produce streams of have a Nano Filtration is the least used method of membrane filtration in industry as the membrane pores sizes are limited to only nanometers. Anything smaller, reverse osmosis is used and anything larger is used for Ultra Filtration. Ultra Filtration can also be used in cases where Nano Filtration can be used, due to it being more conventional. A main disadvantage associated with nanotechnology, as with all membrane filter technology, is the cost and maintenance of the membranes used. Nano Filtration membranes are an expensive part of the process. Repairs and replacement of membranes is dependent on total dissolved solids, flow rate and components of the feed. With Nano Filtration being used across various industries, only an estimation of replacement frequency can be used. This causes Nano Filters to be replaced a short time before or after their prime usage is complete.

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UNITECH WATER SOLUTION as an organization with a mission of rendering extensive services in the critical area of Water and Waste Water Management through a complete suit of water solutions backed by cutting edge expertise and Hi-End Infrastructure which essays a multi-faceted organization being the knowledge bank as well as the disseminator of Hi-end Service Provider.


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