title: Nitrification of human urine for its stabilization and nutrient recycling.
abstract: Nitrification of human urine performed for its stabilization, and culture of Spirulina platensis in the nitrified human urine were investigated for nutrient recovery. With daily adjusting to pH 8 and keeping high dissolved oxygen concentration, mean 95.0% of NH(4)-N in human urine can be finally stabilized and oxidized to NO(3)-N. Furthermore, this nitrified human urine seems to be an ideal culture medium for S. platensis. Without pH adjustment, only about 50.0% NH(4)-N could be converted, i.e. NH(4)NO(3) would be formed. Under low dissolved oxygen concentration, mainly short nitrification (from NH(4)-N to NO(2)-N) occurred.
authors.affiliation: College of Marine Environment and Security Engineering, Shanghai Maritime University, Shanghai 200135, PR China. fengdaolun2000@yahoo.com.cn
authors.forename: Daolun
authors.initials: D
authors.lastname: Feng
authors.forename: Zucheng
authors.initials: Z
authors.lastname: Wu
authors.forename: Shihong
authors.initials: S
authors.lastname: Xu
mesh_terms: D006801:Humans; D006863:Hydrogen-Ion Concentration; D009566:Nitrates / Q000737:chemistry*; D053545:Spirulina / Q000254:growth & development; D014556:Urine
chemical_list: D009566:Nitrates