WHAT THE EVIDENCE SAYS
An experimental activated-sludge system inoculated with Bacillus amyloliquefaciens removed more dissolved organic nitrogen. At the reported optimal 10% inoculation rate, removal of DON, ammonium and total nitrogen was 91.68%, 95.79% and 61.54% respectively.
WHY IT MATTERS / OUR READ
Wastewater engineering is ecology upstream: reductions in plant effluent loads may matter for river nutrients, but the link must be followed through operational performance and receiving-water response.
CAVEATS / UNCERTAINTY
The report is an early peer-reviewed accepted article, subject to copyediting; reactor results do not establish real-world plant scale, economic feasibility or ecological recovery.
SOURCE
Yao et al. · Applied Water Science · nitrogen-reactor experiment
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