Dayliff DUF Ultrafiltration

Ultra Filtration (UF) is a highly effective treatment process that clarifies turbid and polluted water to a high quality potable condition. The UF models use a large number of small pore capillaries with an outside-in flow configuration and with pore sizes of about 0.02 micron will remove particles and high molecular weight substances, colloidal materials and organic and inorganic polymeric particles. It is therefore particularly suitable for the treatment of polluted surface waters from dams, rivers, reservoirs etc as well as waste water recovery. The process will not remove dissolved solids including sodium, calcium and chlorides and so is less suited to the treatment of ground water with high salt levels. Ultra filtration is a full flow recovery process and contaminants are removed by air scouring and back washing, periodically with a chemical cleaning agent, the process being fully automated using solenoid valves. The heart of the system is the pressurised UF module and various system sizes can be provided by combining modules in parallel.

Systems are frame mounted and supplied as complete units with all necessary accessories and controls for simple integration with the flow process. They offer the following features:-

  • High efficiency DuPont ultra filtration membranes.
  • Fully automated plant operation including normal filtration cycle, 2 backwash cycles, rinse and forward flush cycles as well as providing various alarms in case of system malfunction. The various cycles are controlled by an integral PLC controller.
  • High efficiency Dayliff, Davey or Pedrollo feed, backwash and cleaning pumps
  • Integrated cleaning, air scour and backwash systems and two chemical dosers for chlorine and a cleaning agent
  • System monitoring instruments including inlet and outlet flow meters and pressure gauges.
  • 150 micron pre-filter.
  • Skid mounted for simple installation.

DAYLIFF Ultra Filtration Systems provide a high performance, high efficiency treatment process that produces fully potable water without chemical additions. The process uses low energy consumption and provides consistent quality without frequent operational intervention. Due to the efficiency of the membranes it also offers considerable economies over conventional systems and is the ideal solution where ever pure, potable water is required.

Operating Pressure: Ranges between 0.5 Bar and 3 Bar depending on raw water quality and temperature
Maximum Operating Trans Membrane Pressure: 2.1 Bar
Max Operating Temp: 40°C
Operating pH Range: 5-10
Raw Water Quality: Up to 100 mg/l TSS (300 NTU). A raw water analysis should be provided to establish the extent of pre-treatment necessary.
Recovery Range: 70-98% depending on raw water quality.

Model DUF020D DUF040D DUF060D DUF100D DUF120D DUF160D DUF200D DUF250D DUF300D
Flow(m³/hr) 2 4 6 10 12 16 20 25 30
Module No. 1 1 2 2 3 3 4 5 6
Module Type IP-51 IP-77 IP-51 IP-77 IP-77 IP-77 IP-77 IP-77 IP-77
Feed Pump DDS 750 DDS 750 DF6210 DF6210 DF6210 SPP 300M SPP 300M DIN20-03 DIN32-02
Back Wash Pump DDS 750 QP3 QP3 SPP 300M SPP 300M SPP 300M SPP 300M DPX 3000 DPX 3000
Cleaning Pump Feed/CIP Feed/CIP SPP 075M SPP 075M SPP 075M SPP 075M SPP 075M DPX 1500 DPX 1500
Dosing Pump AML200 AML200 AML200 AML200 AML200 AML200 AML200 AML200 AML200
Air Blower CL420HS CL520HS CL720HS
Length(mm) 2000 2000 2500 2500 3000 3000 3000 3000 3000
300Width(mm) 1500 1500 2000 2000 2500 2500 2500 2500 2500
Height(mm) 2500 2900 2900 2900 2900 2900 2900 2900 2900
Weight(kg) 260 440 540 625 700 750 850 950 1000