Sewage Reclamation with Ultra Filtration
In wastewater treatment, ultrafiltration (UF) devices are used to recycle and reuse water that contains virtually no physical solids.
Ultrafiltration definition, applications and industries using these process units are covered below. Ultrafiltration (UF) is a variety of membrane filtration in which forces like pressure or concentration gradients lead to a separation through a semipermeable membrane. Suspended solids and solutes of high molecular weight are retained in the so-called retentate, while water and low molecular weight solutes pass through the membrane in the permeate.
Applications Of Ultrafiltration:
Ultrafiltration processes are preferred over traditional treatment methods for the following reasons:
- No chemicals required (aside from cleaning).
- Constant product quality regardless of feed quality.
- Compact plant size.
- Capable of exceeding regulatory standards of water quality, achieving 90-100% pathogen removal..
When water recycling is simple, it often needs very little processing. However, when more intensive processing is required, the industry standard procedures include using UF, which is meant to remove physical solids from water by passing it through a semi-permeable membrane. Using ultrafiltration, solids are primarily captured by the filter and discarded.