Aquatic Moss Makes Contaminated Water Drinkable

Algae used to be fashionable, what with eco-friendly biomass algae shoes and green chandelier air purifiers. Something that looks quite similar (though is biologically different), moss, used to be functional and innovative, with equally eco-friendly moss-covered tires that absorb moisture and expel oxygen.

But now moss is just plain genius and essential, as scientists in Sweden discover an aquatic one that purifies water contaminated with arsenic, enough that it even becomes potable.

Researchers at Stockholm University say the aquatic moss, warnstofia fluitans, which flourishes in northern Sweden, can rapidly absorb arsenic, removing as much as 82 per cent of the toxins within one hour in some tests.

Due to mining operations in this part of Sweden, wetlands and water sources used for drinking and for growing crops are often contaminated with arsenic.

Arsenic is known to be a waste product from mining. Mine tailings are often toxic and difficult to separate from waste deposits, and toxin concentrations often end up in water sources. This makes mining a major environmental issue.

“We hope that the plant-based wetland system that we are developing will solve the arsenic problem in Sweden’s northern mining areas,” said Maria Greger, associate professor at the Department of Ecology, Environment and Plant Sciences at Stockholm University and leader of the research group.

The process of cleaning the contaminated water done by the aquatic moss is called phylofiltration. The researchers have also mentioned that sometimes this process takes no more than an hour, which is indeed very quick. If only more humans are inspired to be as quick to act in the name of the environment.

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