Fractionation of fresh wastewater and solubility of phosphorus in short-term storage.
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.
Sallanko
Jarmo
J
Process and Environmental Engineering Department, University of Oulu, Finland. jarmo.sallanko@oulu.fi
Hinkkanen
Mikko
M
Okkonen
Jarkko
J
D002244:Carbon / Q000032:analysis; D005591:Chemical Fractionation; D005374:Filtration; D009584:Nitrogen / Q000032:analysis; D010316:Particle Size; D010758:Phosphorus / Q000032:analysis*; D012722:Sewage / Q000032:analysis*
D012722:Sewage; D010758:Phosphorus; D002244:Carbon; D009584:Nitrogen