Artherly-Ikechi, Marsha2008-11-202008-11-202008-11-20https://hdl.handle.net/2139/369enPlease contact the West Indiana Division at the University of the West Indies,St.Augustine in order to view the full thesis. Contact: wimail@sta.uwi.eduSewage -- Purification -- Nitrogen removal -- Trinidad and TobagoWater -- Nitrogen content -- Purification -- Trinidad and TobagoThesis