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Every article tagged “reverse osmosis”.

2 articles

Boiling concentrates fluoride rather than removing it. What actually takes it out is a metal oxide surface

Environmental Science

Boiling concentrates fluoride rather than removing it. What actually takes it out is a metal oxide surface

30 Aug 2026 · 12 min read

Fluoride and arsenic in Indian groundwater pass straight through boiling, chlorination and every candle filter, because they are dissolved ions rather than particles or microbes. Here is what removes them, why arsenic must be oxidised first, and where 'nano' genuinely helps rather than merely appearing on the box.

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How a water treatment plant cleans water

Environmental Science

How a water treatment plant cleans water

1 Aug 2026 · 6 min read

Turning river water into safe drinking water is a sequence of deliberate steps, each removing something the previous one could not. Here is what happens between the intake and the tap, and why the order matters.

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