Ultrafiltration is a variety of membrane filtration in which hydrostatic pressure forces water against a semipermeable membrane. This ensures protection of the subsequent Reverse Osmosis membranes thus preventing fouling/ blockage and extending the life of the membranes. UF involves the pressure-driven separation of materials from water using a membranes pore size of approximately 0.002 to 0.1 microns, an MWCO of approximately 10,000 to 100,000 Daltons, and an operating pressure of approximately 200 to 700 kPa (30 to 100 psi). The mechanism will remove all microbiological species removed using membrane filtration, as well as some viruses and humid materials. Disinfection can provide a second barrier to contamination and is therefore recommended.
The primary advantages of low-pressure Ultrafiltration membrane processes compared with conventional clarification and disinfection (post chlorination) processes are:
- No need for chemicals (coagulants, flocculants, disinfectants, pH adjustment),
- Size-exclusion filtration as opposed to media depth filtration,
- Good and constant quality of the treated water in terms of particle and microbial removal,
- Process and plant compactness, and
- Simple automation.
The process Ultrafiltration is a pressure-driven process by which colloids, particulates, and high molecular mass soluble species are retained by a process of size exclusion, and provides means for concentrating, separating into parts, or filtering dissolved or suspended species. Ultrafiltration allows most ionic inorganic species to pass through the membrane and retains discrete particulate matter and nonionic and ionic organic species. It is a single process that removes many water-soluble organic materials, as well as microbiological contaminants. Since all Ultrafiltration membranes are capable of effectively straining protozoa, bacteria, and most viruses from water, the process offers a disinfected filtered product with little load on any post-treatment sterilization method, such as Ultraviolet radiation, ozone treatment, or even chlorination.
Available Products
– RO Membranes
– UF Modules
– Cartridge Filters
– Bag Filters
