Ultrafiltration (UF) is a pressure-driven purification process that separates particulate matter from soluble compounds using ultrafine membrane media. Ultrafiltration is an excellent separation technology for desalination reverse osmosis pre-treatment, and wastewater reclamation, as well as for producing potable water.
- High and consistent product quality measured by turbidity (NTU) or silt density index (SDI).
- Tolerance to feedwater quality upsets.
- No use of pre-treatment chemicals (polymer, coagulant, pH adjustment) and associated costs for sludge disposal.
- Small footprint and less weight than media filters.
When used as a pre-treatment for reverse osmosis (RO) , UF also helps reduce fouling of the 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.
Source: Courtesy of DuPont™ Water Solutions