20 cubic metre per day RO system
OUR RENTAL SYSTEMS
20 m3/day reverse osmosis system
Asset ID RO-001
FOR PURE WATER PRODUCTION
This system can produce 20,000 litres per day of low TDS reverse osmosis water suitable for use in a wide range of industrial applications where demineralised or deionised water is specified.
It is installed in a stainless steel frame on heavy duty sanitary casters so that it can be moved easily to its point of use.
It includes inlet filter housings for where we install two carbon filters in series for dechlorination purposes. Where dechlorination is not required (e.g. non chlorinated borehole feed water) we would install plain 5 micron filters.
Reverse osmosis systems are designed to remove dissolved minerals from the water into a concentrate stream that flows in contact with the RO membrane. Therefore we recommend that the feed water is soft or dosed with a suitable antiscalant to prevent the membrane becoming clogged with hard water scale.
SPECIFICATIONS
- Designed and manufactured by Hidrotek
- Continuous monitoring of permeate water quality
- 220v 50Hz single phase electrical supply
- Stainless steel frame
- Permatec ultra low pressure RO membranes installed for excellent water quality
- No clean in place system
- recovery rate of 50%
- Overall TDS reduction is 97%
- Push button operation
- Multi stage centrifugal pump included
- Requires feed water to have minimum pressure of 1 bar
| System manufacturer | Hidrotek |
| Membrane type | Permatec ULP-4040HF |
| Membrane are per module | 7.5 m2 |
| Membrane rejection rate | 99.5% |
| Number of installed membranes | 4 |
| Design flow rate (product) | 20, 000 litres per day |
| Waste yield | 20,000 litres per day |
| Flux rate | 28 ‘lmh’ |
| Flux rate (reverse filtration) | NA |
| Clean-in-place tank size | NA |
| External Feed pump | Mains water or pressurised feed |
| Feed pump | Fixed speed multi stage centrifugal |
| CIP pump type | NA |
| Chemicals required for operation of the process | None |
The following items are required to run the systems on any particular site
Item | Further details |
Feed water | Mains water with minimum feed pressure of 1 bar. Alternatively good quality borehole water may be used. Ideally the feed water will be soft (where the feed water is hard please contract us for further information) |
Wastewater discharge point | A drain point for the discharge of wastewater from the process |
Dimensions | 1050 (l) 650 (w) 1550 (h) |
Electrical supply | 240 v 50 Hz (1.5 KW pump) |
Weight | 300kg |
PROCESS DESCRIPTION
Pressurised feed water is provided from mains supply or from borehole pump. This is passed through two cartridge filter housings before it is boosted by the high pressure pump.
Pure water under pressure permeates the reverse osmosis membrane and the dissolved minerals are separated out into the concentrate or waste stream.
The pure water exits the membrane and is passed through a flow meter and quality checker on route to its point of use or storage facility.
The concentrate water also exits the system via flow meter and is usually discharged to drain. It is also possible to use this wastewater for irrigation in some circumstances.
The system pressure is regulated by hand valve to maintain the overall product recovery (i.e. % conversion of feedwater into purified product) at the specified value.
This system is not equipped for chemical cleaning and the membrane production will naturally decline over time if the membrane becomes scaled. For this reason we recommend that the feed water is softened or dosed with a suitable antiscalant (contact us for further details).
This system provides an overall removal of dissolved minerals from the feed water of approximately 97%. This water can be used in a variety of industrial applications including food and drink manufacturing. RO product water is generally not used in potable water systems without some degree of remineralisation to avoid corrosive conditions (please contact us for further details).
The system includes two auxiliary relays that can be used for level switches in associated tanks.