Xtream™ Hollow Fiber UF System

Hollow Fiber UF System

The Kruger Xtream Ultrafiltration (UF) system provides a modular, compact solution for efficiently producing drinking water and treating wastewater. With over 600 million gallons per day (MGD) globally installed, the unique X-Flow polyethersulfone (PES) membrane is the strongest, most hydrophilic and porous of any MF/UF membrane available on the market. Inside-out flow pattern provides optimum solids capture and cleaning.

Potable Water Production

Quality requirements for potable water are becoming increasingly stringent throughout the world. The allowable levels for turbidity and microbiology are being lowered, and new limits are being established for viruses and chlorine resistant organisms, such as Cryptosporidium and Giardia. Effluent concentrations for organic compounds are also becoming more stringent to prevent disinfection by-products (DBPs), which are potential carcinogens. Enhanced coagulation can be used to specifically target such organics.

Wastewater Reuse and Phosphorus Removal

Effluent from wastewater treatment plants is typically discharged to surface water, or polished by tertiary filters such as the Kruger Hydrotech Discfilter for reuse applications.

For more stringent discharge permit requirements such as phosphorus removal, a higher level of treatment is needed. Phosphorus effluent levels as low as 0.03 mg/L have been achieved with coagulant addition using the Xtream process.

The UF membrane is California DHS Title 22 Approved and has proven to be an effective treatment for reuse of secondary/tertiary effluent, phosphorus removal and pre-treatment to reverse osmosis (RO).

Kruger Xtream™ Ultrafiltration Package System

The Kruger Ultrafiltration Package System is a self-contained modular treatment plant ideal for nominal operating flows between 0.1 MGD and 5 MGD. Each unit is pre-engineered, skid-mounted and factory-tested, allowing for savings on installation time and cost.

  • Feed pump and 300 micron auto-cleaning strainer skid
  • Membrane rack skid, including system PLC control panel
  • Chemical day-tank(s) and dosing pump(s) skid (CEB chemicals, coagulant, as required)
  • Backwash pump skid
  • Air compressor and receiver skid

Benefits

Tight UF Membrane

  • 4-log removal of viruses
  • 6-log removal of bacteria
  • Turbidity < 0.1 NTU
  • Silt density index < 3

Dead End Filtration

  • Low energy consumption
  • Simple system

Chemically Enhanced Backwash

  • Low operating pressure (2-8 psi)
  • Fully automated, no operators
  • Uses low cost chemicals
  • High permeability (8-20 gfd/psi)

Fully Automatic Operation

  • Logging of operating parameters
  • Air integrity test
  • Minimal maintenance expenses

Pressurized System

  • Fully enclosed
  • No operator exposure to
  • fumes or aerosols
  • Small footprint

Direct Coagulation With Organic Coagulants

  • Short retention times
  • High removal of organics
  • Phosphate removal

For additional information on the Xtream hollow fiber membrane system, please contact Michael Sparks at (919) 677-8310.