Reaqua Systems, a business originally formed by Scottish Southern Energy to explore energy reduction and greywater reuse, and subsequently spun out under investment funding from Scottish Equity Partners and backed by Scottish Enterprise.
Has established a factory in Livingston, southern Scotland, to supply a new technology for collecting wastewater (greywater) from baths, showers, and sinks, and subsequently ‘recycling’ it for flushing toilets. Customers can optionally specify a system that will also extract heat from greywater, before it is ‘recycled’, so that it can be fed back into a central heating system. The reAqua and reAqua+ units will, the company claims, both reduce water consumption ‘by a third’, while the latter (with optional heat recovery) reportedly enables ‘a two-fold reduction’ in CO2 emissions. Suitable for retrofit and new-build use, the systems are designed to be easy to install and use. A revised plumbing set-up takes all wastewater from baths and showers, redirecting it through a compact filtration unit, where it is treated with a disinfectant. This treated water is collected in a tank, and piped on, as required, to supply all flushing needs for multiple toilets.