We are Novatron Australia, a leader in designing and manufacturing water desalination plants and equipment. We draw upon the latest technologies – including reverse osmosis membranes and nanofiltration – to provide Australian homes and businesses with cleaner water systems. Thanks to our expertise and specialised equipment, potable water is increasingly easy to come by in Australia’s more arid regions.
We’re headquartered in Forrestfield, just a few kilometres south-west of Perth. Access to water has long been an issue in this part of the country, with farmers requiring irrigation solutions in some areas, and homeowners eager to incorporate more sustainable water practices into their day-to-day lives.
This demand for clean, sustainable water has allowed us to build significant experience in all things related to water filtration. Over the past 20 years, we have installed hundreds of clean water systems in Perth and the surrounding area. You simply will not find a more experienced team for water treatment in Perth.
Good quality water can be achieved from seawater and as a general rule we can produce water that will be 99% less salt than the feed water. For livestock water quality can be higher and we would incorporate a “blend” of feed water into the product to mix to a certain quality, say 2500-3000mg/L for sheep. Essentially we are putting some salt back into the water as we have taken too much out.
Well you can but it’s not ideal because the unit won’t last forever. A water analysis needs to be completed so we can make sure the unit is going to operate reliably and economically.
Will depend on how often the unit is operated but will include;
- Cartridge filter replacement every month or longer but guided by pressure drop
across the filter
- Antiscalant dosing chemical (where fitted), weekly top up
- Membrane cleaning (where fitted) every 3 months but guided by the pressure
drop and/or loss of production
- Pump servicing – oil changes for piston pumps (if required)
- When the plant is being operated, a quick review and log of the operating data is recommended (10mins max) to assist with troubleshooting.
The above seems like a lot but once you get to know the unit and what to look for it will become second nature.
Most of the cost to operate will be power (approx 80% or more) as there could be up to 3 pumps on the unit (feed, system and dosing).
Small units (estimates only for higher recovery plants)
- 5,000 litres per day, $ 1.83 per kL which allows for 3 monthly cleaning chemical,
monthly cartridge filters, new membrane costs over 5 years and power (74%)
- 10,000 litres per day, $ 1.33 per kL
- 20,000 litres per day, $ 1.14 per kL
Will depend on the salt content as usually the higher the amount of salt in the feed water the more wastewater will be produced. Anywhere from 25 to 90% waste produced
There are ways we can design a unit to improve the efficiency but there are always consequences to consider. Increasing recoveries increase power requirements and operating costs. Some units cannot be improved with recovery due to the scaling of the water.
Needs to be disposed of somewhere and will have more salt in it. If discharging into a waterway then the destination source must be worse quality (higher salt) than the waste. Don’t send the wastewater back into your feed water.
Power requirements are dependent on the salt level in the water as we have to
overcome the osmotic pressure to convert it into freshwater.
5k unit may need 1.1kW for BW, 2.2kW for SW
10k unit 1.5kW for BW, 3kW for SW
20k unit 2.2kW for BW up to 9000mg/L, 5.5kW for SW
2.2kW is the maximum motor size we can use for a single-phase unit so for all other designs, a generator is required.
Yes you could but you will need a pretty big solar system and a pretty big RO as it will only be able to operate during daylight hours, therefore may need to be up to 3 times the size to produce the same amount of water. As solar technology including batteries improve and come down in price there will certainly be an option we feel.
The units do like to run for longer durations rather than stop and start like a pressure pump. If the unit isn’t going to be operated for more than a week then we recommend either manually starting it for 15minutes or preserving the machine.
Yes you can, we prefer to train our clients as much as possible to show them what to be aware of and how to look after their units. Full training can be provided (recommended) when we test the machine in our workshop.