Treating and Recycling Greywater: Nubian’s sustainable solution for a precious resource

Greywater represents 40% to 60% of water usage in residential buildings such as houses & apartment blocks, hotels & resorts, remote mining camps & military facilities.

Greywater is the used water from showers, baths, hand basins and the laundry and, with the right technology, it can be captured, treated and safely reused. This simple but important initiative can substantially cut water bills, reduce the use of ”new” water and vastly improve water sustainability.

The key question concerning many people is – how can you be sure it’s safe to use?

Australia has the most rigorous greywater recycling approval standards in the world and, with Nubian’s systems approved for use in every Australian mainland state, you’re assured of high performance.

Nubian’s unique, patented approach to treating greywater delivers high quality and high yield with the lowest footprint and energy use of any technology available.

Nubian’s technology is unique and its patented, chemical-free recycling system can deliver greywater to the most demanding “A+ Standard”. Meeting this standard means the recycled water can be used for internal applications such as toilet flushing & laundries and external applications such as above ground irrigation & vehicle washing

At the heart of Nubian’s domestic greywater recycling systems is a unique 3-step process:

  1. Solids separation – which removes lint and other coarse materials to prevent blockages and malfunctions of the system
  2. Biofiltration – a patented process which removes bugs and pathogens using a unique process that contains no chemicals
  3. High dose ultraviolet (UV) disinfection – which attacks the DNA of bacteria, viruses and parasites causing them to lose their reproductive capability and destroying them.

Regulators in commercial environments often demand a ‘multi barrier’ approach to disinfection. For these situations Nubian’s systems can incorporate an additional 2 disinfection steps:

  1. Ultrafiltration (UF) – which uses a membrane to remove pathogens and produce water with very high purity
  2. Chlorination – which provides residual disinfection

These 2 steps, together with the UV disinfection, provide the “Triple Barrier” protection often demanded for commercial usage approval. Water treated by Nubian’s greywater recycling systems is of a high quality with BOD and Suspended Solids levels typically less than 5 parts per million.

High levels of system performance are critical but so are lifetime costs. We understand that being concerned about sustainability doesn’t mean you don’t care about running costs that’s why Nubian systems offer these key benefits:

  • Lowest energy consumption of any system in its class – typically less than 2kW per kL of treated water
  • Yields more 95%+ of the water it treats
  • Lowest maintenance costs of any system in its class – typically less than $2.20 per kL of treated water.

Nubian systems are reliable and backed up by a strong support package

All Nubian greywater recycling systems are automatic and require no intervention by the system’s owner. Nubian’s planned maintenance program together with an advanced, continuous on-line water quality monitoring system provides peace of mind for the system’s owner and for regulators. The treatment plant can be remotely managed via NuLink, Nubian’s propriety communications technology, so you can be sure of peak performance irrespective of where the system is located.

Nubian systems are very compact and easy to install making them ideal for today’s space-constrained building environments. The Nubian treatment platform is also incredible flexible and can recycle from 500 up to 250,000 litres of greywater a day.

Contact us to discover how Nubian greywater recycling could help you reduce your water usage by up to 60%.

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Nubian Water Systems: Sustainable, economic and reliable solutions for the urban environment

For the first time in history more than 50% of the world’s population live in towns and cities. The size of the Chinese middle class now exceeds the entire population of the USA.

Communities around the world are beginning to demand more sustainable use of water and governments are responding. At the same time, established cities are struggling with aging water infrastructure – all cities are finding that infrastructure needs more capacity.

Water infrastructure is critical because it brings ‘new’ water to the buildings we all occupy and takes ‘used’ water away again. The challenge is, unlike IT networks, the ‘bandwidth’ of water infrastructure can’t easily be upgraded.

The reality of a rapidly increasing population demanding high quality water services is driving the concept of “water balance” alongside the search for decentralised water treatment and recycling solutions. Taking control over the management of water at the building or facility level has been well established in remote communities for a long time – the time has come to transfer that model to the homes, offices and factories that most of us live and work in.

Nubian has been committed to providing innovative decentralised treatment and recycling solutions since its creation.

Inspired by the concept of a water refinery, Nubian aims to create for our customers a production facility capable of converting either raw source water or ‘used water’ into a valuable product that is fit for purpose, safe to use and regulatory compliant.

Today, Nubian helps customers by integrating our own technology (biological treatment, UV disinfection, remote communications & management) with ‘best of breed’ 3rd party technology from around the world (membrane filtration, purification & demineralisation, water quality analysis) to deliver complete treatment solutions.

Nubian has established its reputation by combing technology and knowhow to solve complex water problems and delivering reliable solutions for customers in water-sensitive sectors of the market:

  • Green buildings
  • Mining and resources
  • Remote communities
  • Food, beverage and pharmaceutical manufacturing
  • Industrial and washdown
  • Commercial laundries
  • Swimming pools and communities centres

Nubian is strongly committed to both our customers and the environment. We believe that it’s possible to manage our planet’s most precious resource more intelligently and so allow everyone to have access to the amount of they want with the quality they need.

What makes Nubian different?

We’re at the forefront of ensuring the availability of high quality water for a range of applications. Nubian’s home market is Australia, which has the most stringent water quality standards in the world. Our experience in developing solutions for this demanding environment has uniquely prepared us to serve countries across the Middle East, Asia, Europe and North America which are implementing similar regulatory regimes.

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