Choosing The Right Reverse Osmosis (RO) System
What is Reverse Osmosis? The RO process uses a semi-permeable membrane to separate and remove dissolved solids, organics, pyrogens, submicron colloidal matter, viruses, and bacteria from water. The process is called ‘Reverse’ Osmosis since it requires pressure to force pure water across a membrane, leaving the impurities behind. Reverse Osmosis is capable of removing 95-99% of the total dissolved solids (TDS) and 99% of all bacteria, thus providing safe, pure water.
To select the right Reverse Osmosis system for your application, there are four primary considerations:
- Type of Raw Water
- Quality of Product Water Required
- Capacity of the Product Water Required or Flowrate
- Special Features such as Storage, Repressurization, Mounting
Newterra offers 3 different lines of Reverse Osmosis Equipment
Whole house residential, commercial and light industrial standard RO units are offered under our EPRO by Newterra brand.
Robust industrial reverse osmosis systems, both standard, and custom are offered under our Cochrane brand with the DELTA series.
Larger seawater RO units (SWRO) for potable water and commercial use are offered under the Newterra brand with the SeaMega series. The SeaMega series is offered in both skid-mounted and fully containerized models.
Note that even though noted as Skid Mounted, all of Newterra’s equipment can be Modularized in Pre-Fabricated buildings or Containerized into a Modular Facility.
Use the chart below to help in choosing the right reverse osmosis system. Note for UltraPure Water quality post-treatment of the RO is necessary.
| Raw Water | Quality Required | Volume Required | Recommended Model | Special Features |
|---|---|---|---|---|
| TAP Water TDS to 1,500 ppm | High Purity TDS < 10 ppm | UP to 10,000 gpd | EPRO Double Pass | Skid Mounted |
| Over 10,000 gpd | DELTA Double Pass | Skid Mounted | ||
| Potable or Process Water TDS >10 ppm | UP to 8,000 gpd | EPRO Series Systems | Skid Mounted | |
| 7 to 15 gpm | EPRO-1000 DELTA Series | Skid Mounted | ||
| 8 to 400 gpm | DELTA Series | Skid Mounted | ||
| Brackish Water TDS up to 10,000 ppm | High Purity Water TDS < 10 ppm | Up to 10,000 gpd | EPRO Double Pass | Skid Mounted |
| Over 2 gpm | DELTA Double Pass | Skid Mounted | ||
| Potable or Process Water TDS > 10 ppm | Up to 10,000 gpd | EPRO Brackish Water | Skid Mounted | |
| 8 to 400 gpm | DELTA Series | Skid Mounted | ||
| Sea Water | Potable or Process Water TDS>500 ppm | Up to 6,000 gpd | EPRO Sea Water | Skid Mounted |
| Over 5 gpm | SeaMega/S | Skid Mounted | ||
| Over 5 gpm | SeaMega/C | Containerized | ||
