Deonarine, Anesha2018-09-142018-09-14https://hdl.handle.net/2139/45893Please 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.eduPlease 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 -- Phosphate removal -- Trinidad and TobagoSewage -- Purification -- Activated sludge process -- Trinidad and TobagoPhosphorus -- Environmental aspects -- Trinidad and TobagoAluminum sulfate -- Environmental aspects -- Trinidad and TobagoA preliminary study into the use of oven-dried alum sludge as filter and sorption media to reduce phosphate levels in septic system soakawaysTheses