aruf® – ARTAS ultrafiltration system

aruf® is a unique system for producing safe and healthy drinking water. Ultrafiltration is mainly used in drinking water treatment, but is also used as a preliminary stage of reverse osmosis. In wastewater treatment, ultrafiltration is used in an advanced purification stage (tertiary treatment). It is an effective method for purifying water and wastewater from residual contaminants and suspended solids.

Ultrafiltration is a membrane process that uses pore filters with separation limits between 0.1 and 0.01 µm. This retains dirt particles, turbidity, and germs. Unlike nanofiltration and reverse osmosis, ultrafiltration is operated in the low pressure range.

The system technology uses the existing supply pressure. The water to be purified is passed completely through the membrane (dead-end filtration), and the dirt accumulates on the membrane. The transmembrane pressure increases until backwashing with filtrate is triggered and the membrane is cleaned again.

For more effective cleaning, backwashing is supported by chemicals (CEB = Chemical Enhanced Backwash). The result is a permanently defined water quality with a filtrate yield of 90-95%.

• Restoration of damaged infrastructure after disasters or when resources are scarce
• Water treatment in the food industry
• Water and process water treatment in the beverage industry
• Manufacture of printed circuit boards (HAL/silicon wafer-related process water)
• Battery manufacturing (pure process water, recovery, and reuse)
• Thermal power plants (cooling and wastewater treatment)
• Coating and painting plants (rinsing and surface cleaning)
• Drinking water treatment
• Swimming pool and bathing water treatment
• Industrial water reuse (cooling circuits, process water)
• Seawater pretreatment (pre-cleaning prior to further desalination)
• Wastewater reuse
• Wastewater treatment with zero liquid discharge (ZLD)
• Wastewater treatment plants with reused wastewater
• Surface water treatment (industrial use)

If the raw water comes from a contaminated source, diafiltration is carried out prior to ultrafiltration – optionally with a precipitant dosing system. Our Artas pilot container is then used to collect data and expand the planning basis. The final plant design is then based on reliable findings from the pilot project.

Artas supplies turnkey plant technology for conversions, upgrades, and greenfield projects.

• Prefiltration/disc filtration
• Ultrafiltration modules  
• Feed pump
• Backwash pump
• CEB dosing unit
• Control cabinet and switch cabinet

Optional equipment:

• CIP unit

aruf® is a powerful filtration solution for removing macromolecules and particles from raw water and producing high-quality water. Possible applications:

• In water treatment plants or as a stand-alone system that replaces or supplements existing secondary and tertiary filtration stages (coagulation, flocculation, sedimentation or sand filters and chlorination).
• Pre-treatment for water with a high solids content: coarse filtration and flotation prior to aruf® treatment.
• Supply of tasteless and odorless water of consistently high quality.
• Fully automatic operation with integrated control system.

Control system

• The control system automatically and reliably regulates the operating modes of the ultrafiltration process (filtration, cleaning, and backwashing).

Interested? We are happy to answer your questions about the aruf® ultrafiltration system. Our experts are available to assist you at any time.