Membrane Cleaning

Reverse Osmosis Membrane Cleaning Skid (C I P)

Standard Features

The 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 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.

Skid mounted unit

Chemical solution tank with cover

PVC piping

Stainless cleaning pump

5 micron cartridge filter with stainless steel housing (PCS8) or polypropylene (PCS4)

Local flow meter

220V/1Ph/60Hz or 460V/3Ph/60Hz

Available Options

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

chemical tank with

Flexible hoses for cleaning connection

mounted skids for smaller units

Applications

Membrane cleaning

Descaling

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. The following is a summary of the design of PWC cleaning stations and cleaning chemicals. More details instructions are available in the Operating and Maintenance manual for the   Ogo Water Technologies Cleaning Stations.

Model No. Number of pressure vessels to be

cleaned at a time Pipe Material Pipe Size Tank Capacity Shipping Weight

PCS4-1 1 (4″) Schedule 80 PVC 1″ 50 300

PCS4-2 2 (4″) Schedule 80 PVC 1″ 100 350

PCS4-3 3 (4″) Schedule 80 PVC 1″ 150 375

PCS8-1 1 (8″) Schedule 80 PVC 1.5″ 150 500

PCS8-2 2 (8″) Schedule 80 PVC 1.5″ 200 600

PCS8-3 3 (8″) Schedule 80 PVC 2″ 300 700

PCS8-4 4 (8″) Schedule 80 PVC 2″ 360 800

PCS8-5 5 (8″) Schedule 80 PVC 2″ 500 900

PCS8-6 6 (8″) Schedule 80 PVC 3″ 625 980