Size 250 bugs the new answer to meagre fishing…

Fly fishermen who hail Damsels and Mayfly may soon have some rather smaller species to thank, if a new way of draining harmful nitrogen from rivers and lakes catches on.

An unwelcome by-product of agricultural and urban land use, excess nitrogen can cause algal blooms and fish kills. A gathering of scientists last year examined ways in which reactive nitrogen can be ‘dentitrified’ into harmless dinitrogen gas by microorganisms.

Now, the scientific journal Ecological Engineering has reported on those deliberations in its November issue,  which has in turn been picked up by Science Daily:

“One workshop goal was to evaluate a new and relatively inexpensive way to treat wastewater and drainage from agricultural lands using “denitrifying bioreactors.”

These bioreactors use common waste products, such as wood chips, to provide a food source for naturally occurring microorganisms. The microbes convert dissolved nitrogen into harmless nitrogen gas, which is then released to the atmosphere”

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