Sustainable and environmentally friendly desalination on the Horizon
Reference of a UN study
Brine from desalination poses major risks to ocean life by raising the salinity of the receiving seawater. For every litre of freshwater output desalination plants produce on average 1.5 litres of brine. Globally, plants now discharge 142 million cubic meters of hypersaline brine every day.
Authors, from UN University’s Canadian-based Institute for Water, Environment and Health, Wageningen University, The Netherlands, and the Gwangju Institute of Science and Technology, Republic of Korea, call for improved brine management strategies to meet a fast-growing challenge.
The paper found that 55% of global brine is produced in just four countries: Saudi Arabia (22%), UAE (20.2%), Kuwait (6.6%) and Qatar (5.8%).
The HVR solution to the desalination problem
Scarab Development has spent decades of research in eliminating brine from desalination plants in a zero liquid discharge (ZLD) process which turns sea-water into pure water and solid minerals.
Prototypes have recently been evaluated in Saudi-Arabia and Qatar and now Scarab launches its first commercial equipment through its subsidiary, HVR WaterApp AB.
Sea-water contain all types of minerals otherwise found in rocks and these can be mined from the concentrated or dried brine, lithium and uranium are two minerals that could be of special interest, but there are also many others.