Pure Aqua (MEMBRANE CLEANING SYSTEMS) 2020-12-04T10:30:45+01:00

Membrane Cleaning Systems

pure aqua membrane cleaning systems cip

Membrane Cleaning Systems CIP

Membrane Cleaning Skid

The membrane cleaning skid is designed for manual operation through a local control box located on the skid. A chemical storage tank is mounted on its own stand and connected to the membrane cleaning skid with either hard PVC piping or quick disconnect fittings and flexible hoses. This gives the unit the ability to be mounted in a permanent location or totally portable if desired. The piping is schedule 80 PVC that is hydrostatically tested at the factory. The electrical enclosure is NEMA 4X. All membrane cleaning skid wiring is completed and tested before shipment.

Membrane Cleaning Chemicals

Acid and alkaline cleaning chemicals are most commonly used for membrane cleaning. Acid cleaners are designed to remove inorganic and iron deposits. Acid cleaning should be performed at a pH of about 2. Alkaline cleaners are designed for removal of biological matter, organic foulants, and silica deposits. Alkaline cleaning is performed at a pH of about 12.

Membrane Cleaning Process

Reverse Osmosis membrane elements can experience a decline in performance due to the accumulation of deposits on the membrane surface. Mineral scale, colloidal particles, biological matter, and insoluble organic compounds are the usual causes of membrane fouling. When production of a Reverse Osmosis system drops by at least 10 percent, or the differential pressure increases by 15 percent (over normal operating conditions), membrane cleaning should be performed using a membrane cleaning skid. The following is a summary of the design of Pure Aqua, Inc. membrane cleaning skids and cleaning chemicals. More detailed instructions are available in the Operating and Maintenance manual for the Pure Aqua, Inc. Cleaning Stations.

Model No.    

Number of pressure
vessels to be
cleaned at a time           

Pipe Material                  

Pipe
    Size         

Tank
Capacity    

CS4-1

1 (4″)

Schedule 80 PVC

1″

50

CS4-2

2 (4″)

Schedule 80 PVC

1″

100

CS4-3

3 (4″)

Schedule 80 PVC

1″

150

CS8-1

1 (8″)

Schedule 80 PVC

1.5″

150

CS8-2

2 (8″)

Schedule 80 PVC

1.5″

200

CS8-3

3 (8″)

Schedule 80 PVC

2″

300

CS8-4

4 (8″)

Schedule 80 PVC

2″

360

CS8-5

5 (8″)

Schedule 80 PVC

2″

500

CS8-6

6 (8″)

Schedule 80 PVC

3″

625

Standard Features:

Available Options:

  • Skid mounted unit

  • Chemical solution tank with cover

  • PVC piping

  • 316L Stainless cleaning pump

  • 5 micron cartridge filter on select models

  • Local flow meter

  • Tank level switch (CS 8)

  • 220V/1Ph/60Hz or 460V/3Ph/60Hz

  • 220V/1Ph/50Hz or 380-415V 3Ph 50Hz

  • pH Controller

  • Chemical tank electric heater with temperature controller

  • Flexible hoses for cleaning connection

  • Wheel mounted skids for smaller units

  • Chemical tank mixer

  • Low and high pH cleaning chemicals

The ideal applications for a Membrane Cleaning Skid include:

  • Membrane cleaning

  • Descaling