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UrduOne of humankind’s most precious fertilizers is slipping away. Phosphorus, which today comes mostly from nonrenewable reserves of phosphate rock, typically winds up in municipal waste streams. In the best cases, wastewater treatment plants sequester about 90% of that phosphorus in “sludge” and decompose that sludge into something known as digestate.
Tag: phosphorous cycling
Firsthand fieldwork: ORNL scientists establish monitoring in at-risk coastal ecosystem
As a biogeochemist at the Department of Energy’s Oak Ridge National Laboratory, Matthew Berens studies how carbon, nutrients and minerals move through water and soil. In this firsthand account, Berens describes recent fieldwork in Louisiana with colleagues to better understand coastal ecosystems.