AQUALINE TETRA SERIES SEAWATER REVERSE OSMOSIS SYSTEMS

100 m3 / day to 1500 m3 / day
The membrane filtration process for obtaining pure water, which separates all unwanted minerals
from water, applied to waters where conventional treatment systems are insufficient (seawater,
water with high conductivity, well waters, etc.) is called reverse osmosis.

STANDARD FEATURES

• Membrane vessels FRP

• TFC Spiral Wound Membranes 8 "diameter

• AISI304 or AISI316 Dublex quality stainless steel high pressure pump

• St37 Epoxy painted Carbon Steel or AISI304 Stainless Steel Skid

• 5 Micron precision cartridge filter

• Low pressure line U-PVC PN16

• High pressure line AISI316Ti or Dublex Stainless Steel

• Introduction Electric actuated butterfly valve

• Low and High pressure switch

• Clean and Waste water flow meters

• Glycerine manometers

• Product water conductivity indicator (0-2000µS / cm)

• Inlet and Product water pH Meter (optional)

• On-Off switch

• Alarm and Status lamps

• 380 V / 50Hz / 3ph

• IP56 control panel

Recommended Inflow Water Limits

• Inlet water TDS: 38,000 – 41,000 ppm

• Working pressure: between 50 and 70 bar

• Inlet water pressure: 2 to 5 bar

• Inlet water pH range: 6 – 8

• Silica (SiO2) Tolerance 25 ppm max. @ 60% efficiency

• Max. Inlet water temperature = 30º C Max.

• Max Iron (Fe) tolerance 0.05 ppm, Antiscalant dosage 0.2 ppm if available

• Hydrogen Sulfide should not be.

• There should be no turbidity. (NTU<1)

• SDI < 5

• Microbiological contamination should be removed.

MEMBRANE CLEANING CHEMICALS

The most common chemicals used for membrane cleaning are acid and alkaline based. Acid cleaners are designed to remove inorganic and iron deposits and performed at a pH of about 2-3. Alkaline cleaners are designed for removal of biological matter, organic foulants, and silica deposits and performed at a pH of about 10-11.

MEMBRAN CLEANING PROCEDURE

Reverse Osmosis membrane can experience a reduction in performance due to the accumulation of deposits on the membrane surface. Usually mineral scale, colloidal particles, biological matter, and insoluble organic compounds are the causes of membrane fouling. When production flow drops by at least % 15, or the differential pressure increases by % 15 over normal operating conditions, membrane cleaning should be performed. For more information, refer to the operating instructions.