Organic carbon source excites extracellular polymeric substances to boost Fe-mediated autotrophic denitrification in mixotrophic system.

Fe-mediated autotrophic denitrification (ADN) can be suppressed by iron oxide coverage resulting from Fe corrosion. The mixotrophic denitrification (MDN) coupling Fe-mediated ADN with heterotrophic denitrification (HDN) can circumvent the weakening of Fe-mediated ADN over operation time. But the interaction between HDN and Fe-mediated ADN for nitrogen removal of secondary effluent with deficient bioavailable organics remains unclear.

Removal of harmful algae by sp. H3 and sp. H5: algicidal pathways and characteristics.

Application of algicidal bacteria is a promising technology to control harmful algal blooms (HABs). In this study, algicidal bacteria strains sp. H3 and sp.