HYDRANAUTICS (A NITTO GROUP CO.)

The company offers a range of SWC RO membranes for the desalination industry for varying degrees of seawater salinity. The models vary on the basis of productivity and salt rejection rates. The different models are: SWC4 is the highest salt-rejecting membrane used to treat varying levels of seawater salinities and produce low TDS permeate. SWC4 is used in the treatment of sea and highly brackish waters. SWC4 membranes are available in two different variants, LD and MAX., SWC5 membranes provide optimum salt rejection and permeate flows. They are chosen when lower permeate TDS and lower feed pressures are needed. SWC5 membranes offer the highest energy efficiency at the lowest costs and are used in mega desalination plants. SWC5 membranes are available in two different variants, LD and MAX., SWC6 has the lowest feed pressure membranes and offers low energy consumption. They are preferred when the seawater feed temperature is lower, which requires high feed pressures. SWC6 membranes result in low energy consumption and lower treatment costs. SWC6 membranes are available in two different variants, LD and MAX.

CPA RO membranes are used to filter ultrapure water as per the industry standard for industries from pharmaceutical to power industry. The different models of the product are: , CPA2-4040 is a high-rejection RO membrane, available in a diameter of 4 inches., CPA3 is the third generation CPA high rejection brackish water RO membrane. This membrane at 99.7% rejection is an upgrade to the CPA2 with 10% more membrane area (400 sq. ft.)., CPA5-LD is the 4th generation CPA high rejection brackish water RO membrane. This 400 sq. ft. membrane with 99.7% rejection was an upgrade to the CPA3 membrane as it is designed with Low Differential Pressure LDTM. It offers the improved rejection of all ions, including silica and nitrates., CPA6-LD is the fifth generation CPA brackish water RO membrane and has the best rejection of all its predecessors at 99.8%. This 400 sq. ft. membrane operates at a higher feed pressure than CPA5-LD, but it has the highest rejection in the CPA family., The CPA7 series are the newest CPA brackish water RO membranes offering the highest salt rejection in the industry. These ultra-high rejection RO membranes are meant to fulfill the purest water quality requirements. Where ultra-high purity water is required under difficult water conditions, the CPA7 membranes supply the best combination of high rejection and high flow capability in a brackish water RO element, compared to all commercial brackish water RO elements.

ESPA membranes are used in the treatment of drinking water, industrial process waters, municipal and industrial wastewater recovery and reuse because of this exceptional performance capability. These membranes also serve as part of polishing units in seawater desalination plants when boron rejection is critical. The range of products available are: , ESPA1 membrane has the same chemistry as the ESPA2 membrane but has a higher permeability. ESPA1 membrane requires even lower feed pressures than ESPA2 and its energy consumption is also lower. ESPA1 is popularly used in the treatment of low TDS waters to produce potable water., ESPA2 membranes provide optimum salt rejection and permeate flows. They are chosen when lower permeate TDS and lower feed pressures are needed. ESPA2 membranes offer the highest energy efficiency at the lowest costs and are used in large municipal wastewater reclamation plants., ESPA4 has the lowest feed pressure membrane and offers low energy consumption. ESPA4 membranes require ultra-low pressures without compromising high salt rejection and are commonly used in the second pass of a reverse osmosis system.