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REVERSE OSMOSIS AND ULTRAFILTRATION SYSTEMS

reverse Osmosis syst

Remco Engineering reverse osmosis systems fill a unique position in the area of water and wastewater treatment. Our reverse osmosis systems provide complete water purification solutions with microprocessor control and fiberglass support skids for trouble free automatic operation and a long useful life.

Our systems use a recycle loop that takes part of the reject water from the system and recycles it back to the holding tank that feeds the reverse osmosis pump. This is possible because of the water softening system we include with each system. This allows us to use 94%+ of the water we receive into the system. Our competitors will reject up to 50% of the water to drain to keep the membranes from fouling with the water hardness. We remove the hardness first.

Systems can be run with a softener or anti-scalant feed. No other chemicals are required. . No expensive specialty chemicals that you can forget to order and foul your membrane. . The carbon bed reacts with the chlorine and has an almost infinite life. Only plugging of the carbon would require its' replacement. The only periodic maintenance is to change the prefilter to keep the flow rate at an acceptable level.

Our reverse osmosis systems are sized to handle from 1000gallons per day to 500,000 gallons per day. Small reverse osmosis systems have all components mounted on one skid. Larger systems have individual tanks and a separate skid for the RO system.

Installation is simply placing the skid in place, connecting power, city water and the drain lines. Larger reverse osmosis systems will require some simple interconnect plumbing from the feed tanks. In less than 4 hours, most all systems can be installed and running.

Each Remco system includes:

    • 5 micron prefiltration;
    • High flow carbon bed for chlorine removal with an automatic timed backwash;
    • Either a two tank water softening system to remove water hardness or an anti-scalant feed to sequester the calcium and mangesium.
    • A fiberglass skid constructed of epoxy bonded fiberglass structural material with a control panel mounting surface and supports for the reverse osmosis (RO) vessels;
    • A stainless steel multistage reverse osmosis pump;
    • PVC or Stainless Steel interconnection plumbing.
    • Nema 4x (waterproof) fiberglass control panel;
    • Fiberglass reverse osmosis pressure vessels;
    • Thin Film composite reverse osmosis membranes with 97%, 99% or 99.5%rejection;
    • Preprogrammed microprocessor controller interfaced to all pumps and level controls;
    • Softened water storage tank with level controls interfaced to the microprocessor or metering pump for the anti-scalant feed;
    • Reverse osmosis water storage tank with level controls interfaced to the microprocessor;
    • Flowmeters on permeate, reject, and recycle streams;
    • Conductivity meter on permeate stream;
    • Valves for adjusting recycle rate, pump output pressure, and backpressure;
    • Ultraviolet sterilizer on the permeate output; (optional)
    • up to 94%+ water usage efficiency due to the recycle loop and water softening (94% of the water is permeate, 6% of the water is dumped to drain)
    • Optional computer monitor and control system for data logging and remote service and troublshooting

With other systems, the base price is a stripped system and everything useful is an extra cost option. We have very few options. Ours systems are designed to run efficiently, continuously, and with minimum down time. We don't like field service so if it broke, we changed it for something that won't break. Each service call is money out of our pocket so we won't sell you a system that needs lots of service.

We design our systems to include both softening and carbon treatment for removal of all hardness ions and chlorine. The hardness ions foul the reverse osmosis membrane and require periodic cleaning to remove them. If the reverse osmosis membranes become too fouled, the membranes will need to be replaced. By removing the hardness totally, we avoid periodic membrane cleaning totally. We have some systems that are only cleaned on an annual basis. The chlorine removal is to prevent oxidation of the membrane surface.

For a detailed discussion of reverse osmosis systems, read our "Questions and Answers on Reverse Osmosis".

For a quick overview of low flow reverse osmosis systems (1gpm and lower), read our "Reverse Osmosis design page".