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Here’s something rather important that you might not know: there may be a worldwide phosphorus shortage within the next few decades. The majority of the world’s phosphorus is currently mined from non-renewable phosphate rock deposits, and widely used in crop fertilizers. Scientists have begun to question just how much more phosphorus is left, and what the agriculture industry will do once it runs out. The answer – or some of it, at least – could be bobbing in a pool of raw sewage. Ostara, a Canadian nutrient recovery company, has developed a method for harvesting phosphorus from municipal wastewater and converting it to fertilizer...
Tags: Agriculture, Algae, Recycling, Water
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