title: Fractionation of fresh wastewater and solubility of phosphorus in short-term storage.
abstract: In this research the characteristics of fresh wastewater were studied by filtration of organic material and nutrients. Besides the short-term dissolving of phosphorus was determined. The size fractions of oxygen demand for 7 days (BOD7), total organic carbon (TOC), phosphorous (P) and nitrogen (N) were separated to 0.1 microm. Most of the phosphorous, nitrogen and organic carbon was under 0.1 microm fractions. Most of the biological oxygen demand was over 12 microm fractions although the fraction under 0.1 microm was 37%. The amount of phosphorus over 0.45 microm increased 25% after 3 days' storage.
authors.affiliation: Process and Environmental Engineering Department, University of Oulu, Finland. jarmo.sallanko@oulu.fi
authors.forename: Jarmo
authors.initials: J
authors.lastname: Sallanko
authors.forename: Mikko
authors.initials: M
authors.lastname: Hinkkanen
authors.forename: Jarkko
authors.initials: J
authors.lastname: Okkonen
mesh_terms: D002244:Carbon / Q000032:analysis; D005591:Chemical Fractionation; D005374:Filtration; D009584:Nitrogen / Q000032:analysis; D010316:Particle Size; D010758:Phosphorus / Q000032:analysis*; D012722:Sewage / Q000032:analysis*
chemical_list: D012722:Sewage; D010758:Phosphorus; D002244:Carbon; D009584:Nitrogen