Use of ion exchange for removal of Ammonium: A biological regeneration of zeolite by Rahmani A.R. and Mahvi A.H.
Kinetic characterization of nitrifying pure cultures in chemostate by Kantartzi S.G., Vaiopoulou E., Kapagiannidis A. and Aivasidis A.
Addition of nitrate for odor control in sewer networks: laboratory and field experiments by Mathioudakis V.L., Vaiopoulou E. and Aivasidis A.