Slough sewage plant turns human excrement into high-quality fertiliser

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Berkshire town's phosphorus-rich excreta is converted by nutrient recovery reactor into pellets for farm and garden use

Just a few yards from the choked M4 motorway, beyond the massive settling tanks and a steaming, 500-tonne mountain of black sewage sludge at Slough treatment works, a modern alchemy is taking place that...

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