loading live map...hang in there
Point Lowly Desalination
14 Jul 2009
Published To

BHP Billiton plans to put a 280 million litre a day, Reverse Osmosis desalination plant, onto the Point Lowly peninsula.

This Seawater, Reverse Osmosis, desalination plant, will be the second largest in Australia. The plant will be located at the top end of Spencer Gulf, 30 kilometres North-East of Whyalla, South Australia.

Gravity will push seawater, into the "Passive Intake" valve, where it will flow, into a coastal sump and then be lifted from the sump, and pumped 1 kilometre to the desalination plant.

The first step is to pass, the seawater through a coal and sand filter system; which works like an Oversized; Home, Swimming Pool, Filtration System - trapping solids in the sand layer. The water is then passed through a series of pumps along the way, that provide the high-pressures necessary, to force sea-water, through the Reverse Osmosis Membranes. These membranes separate 45% potable water from the seawater. The remaining Fifty-Five percent, or 330 million litres a day, is returned to the sea, as a hyper-saline brine, through a diffuser system, in the seabed floor - 600 metres, off the tip of Point Lowly.

The brine exits into the deep, fast-flowing, tidal currents, which disperse and rapidly mix it with the surrounding seawater.

Comments (0)