Abstract
Anammox coupling with nitrate reduction under various electron donors was studied using sludge acclimatized to have anammox and denitrification activities. Due to a deficiency in electron donors for NO3- reduction, anammox activity in an inorganic medium containing NO3- and NH4+ was lower than that in NO2- and NH4+. Anammox could use NO2- competitively against denitrifiers under a very limited NO2- concentration, and additions of swine wastewater or acetate stimulated anammox activity in an inorganic medium containing NO3- and NH4+ with no inhibition effects. However, a high concentration of swine wastewater caused an exponential increase in denitrification activity. The addition of hydrogen and iron stimulated anammox activity in an inorganic medium containing NO3- and NH4+, but iron showed an inhibitory effect on anammox in a medium containing NO2- and NH4+. Hydrogen was shown to be advantageous since it did not increase denitrification even when its addition was increased.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
