A new $3 million wastewater treatment process to be unveiled next week is designed to earn money for Madison’s sewage plant while reducing runoff of harmful nutrients into lakes and streams.
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New technology extracts valuable fertilizer from waste
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Steven Reusser, operations engineer with the Madison Metropolitan Sewerage District, describes how fertilizer pellets are being made from wastewater in the reactor behind him at the Nine Springs Wastewater Treatment Plant.
Michael Mucha, chief engineer with the Madison Metropolitan Sewerage District, displays a handful of nutrient pellets that will be used as a slow-release fertilizer.
Phosophorus-laden water is removed from waste by new machinery at the Nine Springs Wastewater Treatment Plant. The water is sent to a reactor where nutrient pellets are formed.
John Nelson, relief operator, collects samples of fertilizer pellets made at the Nine Springs Wastewater Treatment Plant.
The Nine Springs Wastewater Treatment allegedly violated its air pollution permit 32 times.
