@astrokirsten: Did you know we can turn seawater into drinkable water? Come with me to explore the @Sydney Water Desalination Plant, where Sydney turns salty seawater into fresh drinking water. Here’s how it works: 1️⃣ Water is drawn in from the ocean and screened to remove big stuff like seaweed. 2️⃣ It’s filtered again to catch sand, algae, and tiny organisms. 3️⃣ Then comes reverse osmosis — high pressure forces water through membranes so fine they block salt at the molecular level. Only H₂O makes it through. 4️⃣ The water is “too pure” at this point, so minerals are added back in. 5️⃣ Finally, it’s pumped into Sydney’s water network and straight into your tap. And the leftover salty water? That's called brine, and it's only twice as salty as the sea is naturally! It's released back into the ocean through special diffusers that mix it safely, protecting marine life. It's amazing, up to 15% of Greater Sydney’s drinking water comes straight from the sea. 🌊➡️🚰 #ScienceExplained #Water #Australia #STEM #sponsored

Dr Kirsten Banks

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Region: AU

Thursday 04 September 2025 23:38:34 GMT