What highly desirable slow-release fertilizer is recovered via controlled precipitation in Wastewater Treatment Plants (WWTPs)?
Answer
Struvite
A key technological development in wastewater treatment is the controlled precipitation and recovery of phosphorus-rich solid matter, often in the form of struvite (magnesium ammonium phosphate), which is a highly desirable slow-release fertilizer.
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Hennig Brand and the Discovery of Phosphorus - YouTube
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