Safe and purified water all over the house

Aqua Kent Ultrafiltration – UF 0.01µ Membrane Outdoor Water Filter will find an increasing application in the production of high purity water use in Restaurants , Canteens, Landed Residential, Apartments etc. The basic principles outlined here should help in the understanding and use of this technology.

What is Ultrafiltration(UF)?

Ultrafiltration (UF) is a water filter purification process that separates particulate matter from soluble components. Membranes reject particulates that are 0.01 microns and larger -facilitating high removal capability for bacteria,viruses, colloids, silt and more.

Ultrafiltration (UF) is a purification process in which water and low molecular weight substances pass through a membrane while particles, colloids, and macromolecules are rejected, yet does not remove ions and small molecules. Flow through the semipermeable membrane is achieved by applying a pressure gradient between the outer and inner walls of the membrane structure.

UF membranes typically have a pore size of 0.01 µm which contributes to a high removal capability of bacteria, viruses, colloids, and silt, thereby producing high-quality pure water.

Why Ultrafiltration is better than Sand Filters?

Sand filters and media water filtration have been around since the 1800s. However, as with most conventional filtration methods, they require consistent raw water quality to deliver quality effluent, which is not always possible. They also don’t provide an absolute barrier. Traditional sand media filters typically remove particles to down to about only 5 microns.

Ultrafiltration (UF), however, does not suffer from those limitations. This technology uses a membrane barrier to exclude particles as small as 0.01 microns, including bacteria, viruses, and colloids, meeting increasingly stringent water quality standards and providing a stable, reliable and consistent water quality.

What UF Membrane offers:

• High and consistent product quality measured by turbidity (NTU), silt density index (SDI) or log removal value (LRV).
• High Tolerance to feed water quality upsets.
• No use of pretreatment chemicals (polymer, coagulant, pH adjustment) and associated costs for sludge disposal.
• Small footprint and less weight than sand media filters.
• When used as a pre-treatment for reverse osmosis (RO), UF also helps reduce fouling of RO membranes, which can lead to reduced chemical cleaning frequency and consequently, lower operating costs and downtime. The potential to operate RO at higher flux, with fewer membranes and vessels – leading to lower capital cost for the RO system.